| Ipomoea abrupta R.Br. | Unresolved |  | IPNI |  | 
	
		| Ipomoea abscissa Bojer ex Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea abutiloides (Kunth) G. Don | Synonym |  | TRO |  | 
	
		| Ipomoea abutiloides var. hartwegiana Kuntze | Synonym |  | TRO |  | 
	
		| Ipomoea abyssinica (Choisy) Schweinf. | Accepted |  | TRO |  | 
	
		| Ipomoea acanthocarpa (Choisy) Asch. & Schweinf. | Accepted |  | TRO |  | 
	
		| Ipomoea acaponetensis M.E. Jones | Unresolved |  | TRO |  | 
	
		| Ipomoea acetosellifolia (Desr.) Choisy | Synonym |  | TRO |  | 
	
		| Ipomoea acetosifolia (Vahl) Roem. & Schult. | Synonym |  | TRO |  | 
	
		| Ipomoea aculeata Blume | Accepted |  | TRO |  | 
	
		| Ipomoea aculeata var. bona-nox (L.) Kuntze | Synonym |  | TRO |  | 
	
		| Ipomoea aculeata f. bonanox (L.) Voss | Synonym |  | TRO |  | 
	
		| Ipomoea aculeata var. mollissima (Zoll.) Hallier f. ex Ooststr. | Accepted |  | TRO |  | 
	
		| Ipomoea acuminata (Vahl) Roem. & Schult. | Synonym |  | TRO |  | 
	
		| Ipomoea acutangula Ruiz & Pav. | Synonym |  | TRO |  | 
	
		| Ipomoea acutiflora A.Rich. | Unresolved |  | IPNI |  | 
	
		| Ipomoea acutisepala O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea adenioides Schinz | Accepted |  | TRO |  | 
	
		| Ipomoea adspersa Mart. ex Meisn. | Unresolved |  | IPNI |  | 
	
		| Ipomoea adumbrata Rendle & Britten | Synonym |  | TRO |  | 
	
		| Ipomoea aegopoda St.-Lag. | Unresolved |  | IPNI |  | 
	
		| Ipomoea aegyptia L. | Synonym |  | TRO |  | 
	
		| Ipomoea aequisepala Domin | Unresolved |  | IPNI |  | 
	
		| Ipomoea aequitans Jones | Unresolved |  | TRO |  | 
	
		| Ipomoea affinis M. Martens & Galeotti | Unresolved |  | TRO |  | 
	
		| Ipomoea afra Choisy | Unresolved |  | TRO |  | 
	
		| Ipomoea afzelii Choisy | Synonym |  | TRO |  | 
	
		| Ipomoea aggregata Poir. | Unresolved |  | IPNI |  | 
	
		| Ipomoea agrestis Hochst. ex Engl. | Unresolved |  | IPNI |  | 
	
		| Ipomoea aitoni Choisy | Synonym |  | TRO |  | 
	
		| Ipomoea aitonii Lindl. | Unresolved |  | TRO |  | 
	
		| Ipomoea alata R. Br. | Synonym |  | TRO |  | 
	
		| Ipomoea alatipes Hook. f. | Synonym |  | TRO |  | 
	
		| Ipomoea alba L. | Accepted |  | TRO |  | 
	
		| Ipomoea albidiflora Matuda | Unresolved |  | TRO |  | 
	
		| Ipomoea albiflora Moric. | Unresolved |  | TRO |  | 
	
		| Ipomoea albivenia Sweet | Accepted |  | TRO |  | 
	
		| Ipomoea alexandrae D.F. Austin | Accepted |  | TRO |  | 
	
		| Ipomoea alpina Rendle | Synonym |  | TRO |  | 
	
		| Ipomoea alterniflora Griseb. | Accepted |  | TRO |  | 
	
		| Ipomoea althoffiana Dammer ex Engl. | Unresolved |  | IPNI |  | 
	
		| Ipomoea altissima (Spreng.) Bertero ex G. Don | Accepted |  | TRO |  | 
	
		| Ipomoea altoparanaensis O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea alulata Miq. | Synonym |  | TRO |  | 
	
		| Ipomoea amambayensis Hassl. | Unresolved |  | IPNI |  | 
	
		| Ipomoea ambigua Endl. | Unresolved |  | TRO |  | 
	
		| Ipomoea amnicola Morong | Accepted |  | TRO |  | 
	
		| Ipomoea amoena Choisy | Unresolved |  | TRO |  | 
	
		| Ipomoea amoenula Dandy | Unresolved |  | TRO |  | 
	
		| Ipomoea amparoana Pilg. | Unresolved |  | TRO |  | 
	
		| Ipomoea ampelopsifolia (Cham. & Schltdl.) G. Don | Synonym |  | TRO |  | 
	
		| Ipomoea amplexicaulis Fernald | Synonym |  | TRO |  | 
	
		| Ipomoea ampliata Choisy | Synonym |  | TRO |  | 
	
		| Ipomoea ampullacea Fernald | Accepted |  | TRO |  | 
	
		| Ipomoea anceps (L.) Roem. & Schult. | Synonym |  | TRO |  | 
	
		| Ipomoea ancisa House | Accepted |  | TRO |  | 
	
		| Ipomoea andongensis Rendle & Britten | Unresolved |  | IPNI |  | 
	
		| Ipomoea androyensis Deroin | Accepted |  | TRO |  | 
	
		| Ipomoea anemophoba Chiov. | Unresolved |  | IPNI |  | 
	
		| Ipomoea angularis Willd. | Synonym |  | TRO |  | 
	
		| Ipomoea angulata Lam. | Synonym |  | TRO |  | 
	
		| Ipomoea angustata Brandegee | Unresolved |  | TRO |  | 
	
		| Ipomoea angustifolia Jacq. | Synonym |  | TRO |  | 
	
		| Ipomoea angustisecta Engl. | Synonym |  | TRO |  | 
	
		| Ipomoea angustisepala O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea anisomeres B.L. Rob. & Bartlett | Accepted |  | TRO |  | 
	
		| Ipomoea anisomeres var. sagittiformis L.O. Williams | Synonym |  | TRO |  | 
	
		| Ipomoea antillana Millsp. | Synonym |  | TRO |  | 
	
		| Ipomoea antonschmidii R.W.Johnson | Unresolved |  | IPNI |  | 
	
		| Ipomoea aphylla Standl. | Synonym |  | TRO |  | 
	
		| Ipomoea apiculata M. Martens & Galeotti | Synonym |  | TRO |  | 
	
		| Ipomoea aprica House | Accepted |  | TRO |  | 
	
		| Ipomoea aquatica Forssk. | Accepted |  | TRO |  | 
	
		| Ipomoea arachnoidea Bojer | Unresolved |  | TRO |  | 
	
		| Ipomoea arachnosperma Welw. | Accepted |  | TRO |  | 
	
		| Ipomoea arborescens (Humb. & Bonpl. ex Willd.) G. Don | Accepted |  | TRO |  | 
	
		| Ipomoea arborescens var. arborescens | Synonym |  | TRO |  | 
	
		| Ipomoea ardissima A. Chev. | Unresolved |  | TRO |  | 
	
		| Ipomoea arenaria Roem. & Schult. | Unresolved |  | TRO |  | 
	
		| Ipomoea arenicola Rendle & Britten | Unresolved |  | IPNI |  | 
	
		| Ipomoea argentaurata Hallier f. | Unresolved |  | TRO |  | 
	
		| Ipomoea argentea Meisn. | Accepted |  | TRO |  | 
	
		| Ipomoea argentifolia A. Rich. ex Sagra | Accepted |  | TRO |  | 
	
		| Ipomoea argentina N.E. Br. | Synonym |  | TRO |  | 
	
		| Ipomoea argentinensis Speg. | Synonym |  | TRO |  | 
	
		| Ipomoea argentinica Peter | Accepted |  | TRO |  | 
	
		| Ipomoea argillicola R.W. Johnson | Unresolved |  | TRO |  | 
	
		| Ipomoea argyreia Meisn. | Accepted |  | TRO |  | 
	
		| Ipomoea argyreia var. discolor Hassl. | Synonym |  | TRO |  | 
	
		| Ipomoea argyreia f. intermedia Chodat & Hassl. | Synonym |  | TRO |  | 
	
		| Ipomoea argyreia f. oblongifolia Hassl. | Synonym |  | TRO |  | 
	
		| Ipomoea argyreia var. paraguariensis (Peter) Chodat & Hassl. | Synonym |  | TRO |  | 
	
		| Ipomoea argyreia f. salicifolia Chodat & Hassl. | Synonym |  | TRO |  | 
	
		| Ipomoea argyreoides Choisy | Synonym |  | TRO |  | 
	
		| Ipomoea argyrophylla Vatke | Unresolved |  | IPNI |  | 
	
		| Ipomoea aristolochiifolia G. Don | Accepted |  | TRO |  | 
	
		| Ipomoea aristulata M. Martens & Galeotti | Unresolved |  | TRO |  | 
	
		| Ipomoea armata Roem. & Schult. | Synonym |  | TRO |  | 
	
		| Ipomoea armata var. patens (A. Gray) M.E. Jones | Synonym |  | TRO |  | 
	
		| Ipomoea armentalis L.O. Williams | Synonym |  | TRO |  | 
	
		| Ipomoea arnoldsonii Urb. | Accepted |  | TRO |  | 
	
		| Ipomoea arnottiana Steud. | Unresolved |  | IPNI |  | 
	
		| Ipomoea asarifolia (Desr.) Roem. & Schult. | Accepted |  | TRO |  | 
	
		| Ipomoea asclepiadea Hallier f. | Unresolved |  | IPNI |  | 
	
		| Ipomoea asclepiadea Choisy ex Steud. | Unresolved |  | IPNI |  | 
	
		| Ipomoea aspera (Choisy) Vatke | Accepted |  | TRO |  | 
	
		| Ipomoea aspericaulis Baker | Unresolved |  | TRO |  | 
	
		| Ipomoea asperifolia Hallier f. | Synonym |  | TRO |  | 
	
		| Ipomoea aspersa Mart. ex Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea asplundii O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea assumptae Mattei | Unresolved |  | IPNI |  | 
	
		| Ipomoea assumptionis Morong | Synonym |  | TRO |  | 
	
		| Ipomoea asterophora Ooststr. | Unresolved |  | IPNI |  | 
	
		| Ipomoea astrotrichota Dammer | Unresolved |  | TRO |  | 
	
		| Ipomoea atacorensis A.Chev. | Unresolved |  | IPNI |  | 
	
		| Ipomoea atherstonei Baker | Accepted |  | TRO |  | 
	
		| Ipomoea atropurpurea (Wall.) Choisy | Synonym |  | TRO |  | 
	
		| Ipomoea atrosanguinea Hook. | Unresolved |  | IPNI |  | 
	
		| Ipomoea aturensis (Kunth) G. Don | Synonym |  | TRO |  | 
	
		| Ipomoea aurantiaca L.O. Williams | Accepted |  | TRO |  | 
	
		| Ipomoea aurea Kellogg ex Curran | Synonym |  | TRO |  | 
	
		| Ipomoea auricoma A.Rich. | Unresolved |  | IPNI |  | 
	
		| Ipomoea auriculata Hallier f. | Unresolved |  | IPNI |  | 
	
		| Ipomoea aurifolia Dammer | Unresolved |  | TRO |  | 
	
		| Ipomoea aurita Hassl. | Unresolved |  | TRO |  | 
	
		| Ipomoea austin-smithii Standl. | Synonym |  | TRO |  | 
	
		| Ipomoea auxocalyx Pilg. | Unresolved |  | IPNI |  | 
	
		| Ipomoea avicola D.F.Austin | Unresolved |  | IPNI |  | 
	
		| Ipomoea avicularis Raf. | Unresolved |  | IPNI |  | 
	
		| Ipomoea azurea Hort. | Unresolved |  | IPNI |  | 
	
		| Ipomoea baalan Montrouz. | Unresolved |  | IPNI |  | 
	
		| Ipomoea baccifera Russ. ex Steud. | Unresolved |  | IPNI |  | 
	
		| Ipomoea baclii Choisy | Synonym |  | TRO |  | 
	
		| Ipomoea bahiensis Willd. ex Roem. & Schult. | Accepted |  | TRO |  | 
	
		| Ipomoea bakeri Britten | Unresolved |  | IPNI |  | 
	
		| Ipomoea balansae Peter | Unresolved |  | TRO |  | 
	
		| Ipomoea balioclada Urb. | Accepted |  | TRO |  | 
	
		| Ipomoea bampsiana Lejoly & Lisowski | Unresolved |  | IPNI |  | 
	
		| Ipomoea barbata Roth | Unresolved |  | IPNI |  | 
	
		| Ipomoea barbata Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea barbatisepala A. Gray | Accepted |  | TRO |  | 
	
		| Ipomoea barbigera Sweet | Synonym |  | TRO |  | 
	
		| Ipomoea barlerioides (Choisy) Benth. ex C.B. Clarke | Accepted |  | TRO |  | 
	
		| Ipomoea barrettii Rendle | Synonym |  | TRO |  | 
	
		| Ipomoea barteri A. Chev. | Unresolved |  | TRO |  | 
	
		| Ipomoea barteri Baker | Unresolved |  | TRO |  | 
	
		| Ipomoea bartletti Standl. | Unresolved |  | TRO |  | 
	
		| Ipomoea batatas (L.) Lam. | Accepted |  | TRO |  | 
	
		| Ipomoea batatas var. apiculata (M. Martens & Galeotti) J.A. McDonald & D.F. Austin | Accepted |  | TRO |  | 
	
		| Ipomoea batatas var. edulis (Thunb.) Makino | Synonym |  | TRO |  | 
	
		| Ipomoea batatas var. leucantha (Jacq.) Nishiyama | Synonym |  | TRO |  | 
	
		| Ipomoea batatas var. littoralis (Blume) Nishiyama | Synonym |  | TRO |  | 
	
		| Ipomoea batatas var. lobata Gagnep. & Courchet | Synonym |  | TRO |  | 
	
		| Ipomoea batatas var. porphyrorhiza Griseb. | Synonym |  | TRO |  | 
	
		| Ipomoea batatas f. trifida Moldenke | Synonym |  | TRO |  | 
	
		| Ipomoea batatilla (Kunth) G. Don | Unresolved |  | TRO |  | 
	
		| Ipomoea batatoides Choisy | Accepted |  | TRO |  | 
	
		| Ipomoea bathycolpos Hallier f. | Unresolved |  | TRO |  | 
	
		| Ipomoea beladamboe Roem. & Schult. | Unresolved |  | IPNI |  | 
	
		| Ipomoea bella A.Chev. | Unresolved |  | IPNI |  | 
	
		| Ipomoea bellecomans Rendle | Synonym |  | TRO |  | 
	
		| Ipomoea benghalensis Roem. & Schult. | Synonym |  | TRO |  | 
	
		| Ipomoea benguelensis Baker | Unresolved |  | IPNI |  | 
	
		| Ipomoea beninensis Ako | Unresolved |  | IPNI |  | 
	
		| Ipomoea beraviensis Vatke | Synonym |  | TRO |  | 
	
		| Ipomoea bernoulliana Peter | Accepted |  | TRO |  | 
	
		| Ipomoea beyeriana Urb. | Accepted |  | TRO |  | 
	
		| Ipomoea bicolor Sweet | Unresolved |  | IPNI |  | 
	
		| Ipomoea bicolor Lam. | Unresolved |  | IPNI |  | 
	
		| Ipomoea bidentata G.Don | Unresolved |  | IPNI |  | 
	
		| Ipomoea bifida Roem. & Schult. | Unresolved |  | IPNI |  | 
	
		| Ipomoea bifida Weinm. | Unresolved |  | IPNI |  | 
	
		| Ipomoea biflora (L.) Pers. | Accepted |  | TRO |  | 
	
		| Ipomoea biglandulosa Arechav. | Synonym |  | TRO |  | 
	
		| Ipomoea bignonioides Sims | Accepted |  | TRO |  | 
	
		| Ipomoea biloba Forssk. | Synonym |  | TRO |  | 
	
		| Ipomoea bilobata (Roxb.) G. Don | Accepted |  | TRO |  | 
	
		| Ipomoea bilobata var. emarginata (Hallier f.) R.O. Williams | Synonym |  | TRO |  | 
	
		| Ipomoea bimbim Gagnep. | Unresolved |  | IPNI |  | 
	
		| Ipomoea bipedunculata C.B.Clarke | Unresolved |  | IPNI |  | 
	
		| Ipomoea bipinnatipartita Engl. | Synonym |  | TRO |  | 
	
		| Ipomoea bisavium A. Meeuse | Accepted |  | TRO |  | 
	
		| Ipomoea bisperma Larra | Unresolved |  | IPNI |  | 
	
		| Ipomoea blanchetii Choisy | Accepted |  | TRO |  | 
	
		| Ipomoea blancoi Choisy | Synonym |  | TRO |  | 
	
		| Ipomoea blanda Sweet | Unresolved |  | IPNI |  | 
	
		| Ipomoea blepharophylla Hallier f. | Accepted |  | TRO |  | 
	
		| Ipomoea blepharosepala Hochst. ex A. Rich. | Synonym |  | TRO |  | 
	
		| Ipomoea blumii Steud. | Unresolved |  | IPNI |  | 
	
		| Ipomoea bogotensis (Kunth) G. Don | Synonym |  | TRO |  | 
	
		| Ipomoea boisiana Gagnep. | Synonym |  | TRO |  | 
	
		| Ipomoea boisiana var. fulvopilosa Gagnep. | Synonym |  | TRO |  | 
	
		| Ipomoea boisiana var. rufopilosa Gagnep. | Synonym |  | TRO |  | 
	
		| Ipomoea bolusiana Schinz | Accepted |  | TRO |  | 
	
		| Ipomoea bolusiana subsp. bolusiana | Synonym |  | TRO |  | 
	
		| Ipomoea bolusiana var. pinnatipartita Verdc. | Synonym |  | TRO |  | 
	
		| Ipomoea bombycina (Choisy) Benth. & Hook. f. | Accepted |  | TRO |  | 
	
		| Ipomoea bona-nox L. | Synonym |  | TRO |  | 
	
		| Ipomoea bona-nox var. purpurascens Ker Gawl. | Synonym |  | TRO |  | 
	
		| Ipomoea bonariensis Hook. | Accepted |  | TRO |  | 
	
		| Ipomoea bonariensis var. bonariensis | Synonym |  | TRO |  | 
	
		| Ipomoea bonariensis var. calvescens Hallier | Synonym |  | TRO |  | 
	
		| Ipomoea bonariensis var. chacoensis O'Donell | Synonym |  | TRO |  | 
	
		| Ipomoea bonariensis f. cordata Hassl. | Synonym |  | TRO |  | 
	
		| Ipomoea bonariensis var. cordifolia Chodat & Hassl. | Synonym |  | TRO |  | 
	
		| Ipomoea bonariensis var. genuina Chodat & Hassl. | Synonym |  | TRO |  | 
	
		| Ipomoea bonariensis f. glabrata Hassl. | Synonym |  | TRO |  | 
	
		| Ipomoea bonariensis var. grandiflora Chodat & Hassl. | Synonym |  | TRO |  | 
	
		| Ipomoea bonariensis f. intermedia Hassl. | Synonym |  | TRO |  | 
	
		| Ipomoea bonariensis subsp. mollis Hassl. | Synonym |  | TRO |  | 
	
		| Ipomoea bonariensis var. pubisepala Hassl. | Synonym |  | TRO |  | 
	
		| Ipomoea bonariensis var. rupestris Chodat & Hassl. | Synonym |  | TRO |  | 
	
		| Ipomoea bonii Gagnep. | Unresolved |  | IPNI |  | 
	
		| Ipomoea bouvetii Duchass. & Walp. | Unresolved |  | IPNI |  | 
	
		| Ipomoea bowieana Baker | Synonym |  | TRO |  | 
	
		| Ipomoea brachypoda Benth. | Synonym |  | TRO |  | 
	
		| Ipomoea bracteata Cav. | Accepted |  | TRO |  | 
	
		| Ipomoea bracteata var. bracteata | Synonym |  | TRO |  | 
	
		| Ipomoea bracteata var. pubescens Rob. & Greenm. | Synonym |  | TRO |  | 
	
		| Ipomoea bracteosa Gagnep. | Unresolved |  | IPNI |  | 
	
		| Ipomoea brasiliana Meisn. | Accepted |  | TRO |  | 
	
		| Ipomoea brasiliensis (L.) Sweet | Synonym |  | TRO |  | 
	
		| Ipomoea brasseuriana De Wild. | Unresolved |  | IPNI |  | 
	
		| Ipomoea brassii C.T. White | Unresolved |  | TRO |  | 
	
		| Ipomoea breedlovei L.O. Williams | Synonym |  | TRO |  | 
	
		| Ipomoea breviflora G. Mey. | Unresolved |  | TRO |  | 
	
		| Ipomoea brevifolia G. Mey. | Unresolved |  | TRO |  | 
	
		| Ipomoea brevipedicellata (Hallier f.) Hallier f. | Synonym |  | TRO |  | 
	
		| Ipomoea brevipes Moc. & Sessé | Unresolved |  | TRO |  | 
	
		| Ipomoea britteniana Rendle | Unresolved |  | IPNI |  | 
	
		| Ipomoea bronsonii J. N. Gerard | Unresolved |  | TRO |  | 
	
		| Ipomoea brousoni J.N.Gerard | Unresolved |  | IPNI |  | 
	
		| Ipomoea brownei Roem. & Schult. | Unresolved |  | IPNI |  | 
	
		| Ipomoea brownii Roem. & Schult. | Unresolved |  | IPNI |  | 
	
		| Ipomoea buaralap Montrouz. | Unresolved |  | IPNI |  | 
	
		| Ipomoea buchananii Baker | Unresolved |  | IPNI |  | 
	
		| Ipomoea buchananii Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea buchii Urb. | Unresolved |  | TRO |  | 
	
		| Ipomoea buchneri Peter. | Unresolved |  | IPNI |  | 
	
		| Ipomoea bufalina Choisy | Synonym |  | TRO |  | 
	
		| Ipomoea bulbocastana Moc. & Sesse. ex Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea bullata Oliv. | Unresolved |  | TRO |  | 
	
		| Ipomoea burchellii Meisn. | Accepted |  | TRO |  | 
	
		| Ipomoea burmanni Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea burridgei Hort. | Unresolved |  | IPNI |  | 
	
		| Ipomoea bussei Pilg. | Synonym |  | TRO |  | 
	
		| Ipomoea caerulea Roxb. | Unresolved |  | TRO |  | 
	
		| Ipomoea caerulescens Roxb. | Unresolved |  | IPNI |  | 
	
		| Ipomoea caesia Hoffmanns. | Unresolved |  | IPNI |  | 
	
		| Ipomoea caespitosa Hallier f. | Unresolved |  | IPNI |  | 
	
		| Ipomoea caespitosa Kuntze | Unresolved |  | IPNI |  | 
	
		| Ipomoea cairica (L.) Sweet | Accepted |  | TRO |  | 
	
		| Ipomoea cairica var. cairica | Synonym |  | TRO |  | 
	
		| Ipomoea cairica var. gracillima (Collett & Hemsl.) C.Y. Wu | Accepted |  | TRO |  | 
	
		| Ipomoea calantha Griseb. | Synonym |  | TRO |  | 
	
		| Ipomoea calcarata Rendle | Synonym |  | TRO |  | 
	
		| Ipomoea calderonii Standl. | Synonym |  | TRO |  | 
	
		| Ipomoea calidicola Standl. & L.O. Williams | Unresolved |  | TRO |  | 
	
		| Ipomoea caliginosa Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea callida House | Synonym |  | TRO |  | 
	
		| Ipomoea calobra F.Muell. | Unresolved |  | IPNI |  | 
	
		| Ipomoea calobra Hill & F.Muell. | Unresolved |  | IPNI |  | 
	
		| Ipomoea calodendron O'Donell | Synonym |  | TRO |  | 
	
		| Ipomoea caloneura Meisn. | Unresolved |  | IPNI |  | 
	
		| Ipomoea calophylla Fenzl | Accepted |  | TRO |  | 
	
		| Ipomoea caloxantha Diels | Synonym |  | TRO |  | 
	
		| Ipomoea calva House | Synonym |  | TRO |  | 
	
		| Ipomoea calycina Benth. ex C.B. Clarke | Synonym |  | TRO |  | 
	
		| Ipomoea calycosa Choisy | Unresolved |  | TRO |  | 
	
		| Ipomoea calyptrata Dammer | Accepted |  | TRO |  | 
	
		| Ipomoea calystegioides Hallier f. | Synonym |  | TRO |  | 
	
		| Ipomoea cambodiensis Gagnep. & Courchet | Unresolved |  | IPNI |  | 
	
		| Ipomoea camerunensis Taub. | Unresolved |  | IPNI |  | 
	
		| Ipomoea campanulata L. | Synonym |  | TRO |  | 
	
		| Ipomoea campestris Meisn. | Accepted |  | TRO |  | 
	
		| Ipomoea camporum A. Chev. ex Hutch. & Dalziel | Unresolved |  | TRO |  | 
	
		| Ipomoea cana E. Mey. | Unresolved |  | TRO |  | 
	
		| Ipomoea candei Chiov. | Unresolved |  | IPNI |  | 
	
		| Ipomoea candicans Sweet | Unresolved |  | IPNI |  | 
	
		| Ipomoea canescens (Kunth) G. Don | Synonym |  | TRO |  | 
	
		| Ipomoea capillacea (Kunth) G. Don | Accepted |  | TRO |  | 
	
		| Ipomoea capillacea var. patens A. Gray | Synonym |  | TRO |  | 
	
		| Ipomoea capillata Span. | Unresolved |  | IPNI |  | 
	
		| Ipomoea capillifolia Bert. ex Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea capitata Roem. & Schult. | Synonym |  | TRO |  | 
	
		| Ipomoea capitellata Choisy | Synonym |  | TRO |  | 
	
		| Ipomoea capparoiides Choisy | Unresolved |  | TRO |  | 
	
		| Ipomoea carajasensis D.F. Austin | Accepted |  | TRO |  | 
	
		| Ipomoea cardenasiana O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea cardiophylla A. Gray | Accepted |  | TRO |  | 
	
		| Ipomoea cardiosepala Meisn. | Synonym |  | TRO |  | 
	
		| Ipomoea carinata Endl. | Unresolved |  | IPNI |  | 
	
		| Ipomoea cariosepala Klotzsch ex C.B.Clarke | Unresolved |  | IPNI |  | 
	
		| Ipomoea carletonii Holz. | Unresolved |  | TRO |  | 
	
		| Ipomoea carmesina Proctor | Unresolved |  | TRO |  | 
	
		| Ipomoea carnea Jacq. | Accepted |  | TRO |  | 
	
		| Ipomoea carnea subsp. carnea | Synonym |  | TRO |  | 
	
		| Ipomoea carnosa R. Br. | Synonym |  | TRO |  | 
	
		| Ipomoea carolina L. | Accepted |  | TRO |  | 
	
		| Ipomoea caroliniana Lam. | Unresolved |  | IPNI |  | 
	
		| Ipomoea carrizalia Brandegee | Synonym |  | TRO |  | 
	
		| Ipomoea carsonii Baker | Unresolved |  | IPNI |  | 
	
		| Ipomoea cataractae Endl. | Synonym |  | TRO |  | 
	
		| Ipomoea catesbaei G.Mey. | Unresolved |  | IPNI |  | 
	
		| Ipomoea cathartica Poir. | Synonym |  | TRO |  | 
	
		| Ipomoea caudata Fernald | Accepted |  | TRO |  | 
	
		| Ipomoea cavalcantei D.F. Austin | Accepted |  | TRO |  | 
	
		| Ipomoea cavanillesii Roem. & Schult. | Synonym |  | TRO |  | 
	
		| Ipomoea cearensis O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea cecilae N.E. Br. | Synonym |  | TRO |  | 
	
		| Ipomoea cecilae var. anomophylla Merxm. | Synonym |  | TRO |  | 
	
		| Ipomoea cecilae var. quinquesecta Merxm. | Synonym |  | TRO |  | 
	
		| Ipomoea cephalantha Dammer | Unresolved |  | IPNI |  | 
	
		| Ipomoea cephalantha Baker | Unresolved |  | IPNI |  | 
	
		| Ipomoea cernua Arechav. | Unresolved |  | TRO |  | 
	
		| Ipomoea cernua var. ambigua (Meisn.) Arechav. | Synonym |  | TRO |  | 
	
		| Ipomoea cernua f. chacoensis Hassl. | Synonym |  | TRO |  | 
	
		| Ipomoea cernua f. obtusiflora Hassl. | Synonym |  | TRO |  | 
	
		| Ipomoea cernua f. palmirense Arechav. | Synonym |  | TRO |  | 
	
		| Ipomoea cernua f. platensis Hassl. | Synonym |  | TRO |  | 
	
		| Ipomoea cernua f. yapeyuana Arechav. | Synonym |  | TRO |  | 
	
		| Ipomoea chaetocaulos Hallier f. | Unresolved |  | IPNI |  | 
	
		| Ipomoea chamelana J.A. McDonald | Accepted |  | TRO |  | 
	
		| Ipomoea chanetii H.Lév. | Unresolved |  | WCSP (in review) |  | 
	
		| Ipomoea cheirophylla O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea chenopodiifolia (M. Martens & Galeotti) Hemsl. | Accepted |  | TRO |  | 
	
		| Ipomoea chiapensis Brandegee | Synonym |  | TRO |  | 
	
		| Ipomoea chilensis A. Braun & C.D. Bouché | Synonym |  | TRO |  | 
	
		| Ipomoea chiliantha Hallier f. | Accepted |  | TRO |  | 
	
		| Ipomoea chilopsidis Standl. | Accepted |  | TRO |  | 
	
		| Ipomoea chiriquiensis Standl. | Accepted |  | TRO |  | 
	
		| Ipomoea chloroneura Hallier f. | Accepted |  | TRO |  | 
	
		| Ipomoea chodatiana O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea choisiana Wight ex Safford | Synonym |  | TRO |  | 
	
		| Ipomoea choisyana Wight & Arn. ex Hallier f. | Unresolved |  | IPNI |  | 
	
		| Ipomoea choisyi Montrouz. | Unresolved |  | IPNI |  | 
	
		| Ipomoea cholulensis Kunth | Accepted |  | TRO |  | 
	
		| Ipomoea chondrosepala Hallier f. | Accepted |  | TRO |  | 
	
		| Ipomoea chryseides Ker Gawl. | Synonym |  | TRO |  | 
	
		| Ipomoea chrysocalyx D.F. Austin | Accepted |  | TRO |  | 
	
		| Ipomoea chrysochaetia Hallier f. | Unresolved |  | TRO |  | 
	
		| Ipomoea chrysochaetia var. lasiophylla (Hallier f.) Lejoly & Lisowski | Unresolved |  | TRO |  | 
	
		| Ipomoea chrysochaetia var. velutipes (Welw. ex Rendle) Lejoly & Lisowski | Unresolved |  | TRO |  | 
	
		| Ipomoea chrysorrhiza Hook.f. | Unresolved |  | IPNI |  | 
	
		| Ipomoea chrysosperma Hallier f. | Unresolved |  | IPNI |  | 
	
		| Ipomoea chrysotricha Meisn. | Accepted |  | TRO |  | 
	
		| Ipomoea chrysotrichoides Hassl. | Unresolved |  | TRO |  | 
	
		| Ipomoea cicatricosa Baker | Unresolved |  | TRO |  | 
	
		| Ipomoea ciervensis Painter | Accepted |  | TRO |  | 
	
		| Ipomoea ciliolata Pers. | Unresolved |  | IPNI |  | 
	
		| Ipomoea ciliosa Pursh | Unresolved |  | IPNI |  | 
	
		| Ipomoea cincta Roem. & Schult. | Unresolved |  | IPNI |  | 
	
		| Ipomoea cinerascens R.Br. | Unresolved |  | IPNI |  | 
	
		| Ipomoea cipo-colla Glaz. | Unresolved |  | IPNI |  | 
	
		| Ipomoea cissoides (Lam.) Griseb. | Synonym |  | TRO |  | 
	
		| Ipomoea cissoides f. viscidula Meisn. | Synonym |  | TRO |  | 
	
		| Ipomoea citrina Hallier f. | Unresolved |  | IPNI |  | 
	
		| Ipomoea clappertonii R.Br. | Unresolved |  | IPNI |  | 
	
		| Ipomoea clarensis A. H. Liogier | Accepted |  | TRO |  | 
	
		| Ipomoea clarkei Hook.f. | Unresolved |  | IPNI |  | 
	
		| Ipomoea classeniana Huber | Unresolved |  | TRO |  | 
	
		| Ipomoea clausa Rudolphi ex Ledeb. & Adlerstam | Accepted |  | TRO |  | 
	
		| Ipomoea clavata (G. Don) Ooststr. ex J.F. Macbr. | Accepted |  | TRO |  | 
	
		| Ipomoea clewellii C. Nelson | Synonym |  | TRO |  | 
	
		| Ipomoea coccinea L. | Synonym |  | TRO |  | 
	
		| Ipomoea coccinea var. curviflora Griseb. | Synonym |  | TRO |  | 
	
		| Ipomoea coccinea var. hederifolia (L.) A. Gray | Synonym |  | TRO |  | 
	
		| Ipomoea coccinea var. luteola (Jacq.) Meisn. | Synonym |  | TRO |  | 
	
		| Ipomoea coccinea var. luteola Arechav. | Synonym |  | TRO |  | 
	
		| Ipomoea coccinea var. pubescens Schltdl. & Cham. | Synonym |  | TRO |  | 
	
		| Ipomoea codonantha Benth. | Synonym |  | TRO |  | 
	
		| Ipomoea coelestis Bojer ex Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea coerulea Bello ex Stahl. | Unresolved |  | IPNI |  | 
	
		| Ipomoea collina House | Synonym |  | TRO |  | 
	
		| Ipomoea colombiana O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea commatophylla A.Rich. | Unresolved |  | IPNI |  | 
	
		| Ipomoea commutata Roem. & Schult. | Unresolved |  | TRO |  | 
	
		| Ipomoea comosa House | Synonym |  | TRO |  | 
	
		| Ipomoea comosperma Drake | Unresolved |  | IPNI |  | 
	
		| Ipomoea compressa Guss. | Unresolved |  | IPNI |  | 
	
		| Ipomoea conceiroi Rendle | Synonym |  | TRO |  | 
	
		| Ipomoea concinna House | Synonym |  | TRO |  | 
	
		| Ipomoea concolora (Matuda) D.F. Austin | Accepted |  | TRO |  | 
	
		| Ipomoea conferta G.Don | Unresolved |  | IPNI |  | 
	
		| Ipomoea confertiflora Standl. | Synonym |  | TRO |  | 
	
		| Ipomoea congesta R. Br. | Synonym |  | TRO |  | 
	
		| Ipomoea conica Didr. | Unresolved |  | IPNI |  | 
	
		| Ipomoea consimilis Schulze-Menz | Unresolved |  | TRO |  | 
	
		| Ipomoea contorquens Choisy | Synonym |  | TRO |  | 
	
		| Ipomoea contorta Choisy | Synonym |  | TRO |  | 
	
		| Ipomoea contrerasii L.O. Williams | Synonym |  | TRO |  | 
	
		| Ipomoea convolvulifolia Hallier f. | Unresolved |  | IPNI |  | 
	
		| Ipomoea convolvuloides Hallier f. | Synonym |  | TRO |  | 
	
		| Ipomoea convolvulus var. guineensis Schumach. & Thonn. | Synonym |  | TRO |  | 
	
		| Ipomoea conzattii Greenm. | Accepted |  | TRO |  | 
	
		| Ipomoea coptica (L.) Roth ex Roem. & Schult. | Accepted |  | TRO |  | 
	
		| Ipomoea coptica var. coptica | Synonym |  | TRO |  | 
	
		| Ipomoea cordata L.B. Sm. & B.G. Schub. | Synonym |  | TRO |  | 
	
		| Ipomoea cordatosepala Britten | Unresolved |  | IPNI |  | 
	
		| Ipomoea cordatotriloba Dennst. | Accepted |  | TRO |  | 
	
		| Ipomoea cordatotriloba var. australis (O'Donell) D.F. Austin | Accepted |  | TRO |  | 
	
		| Ipomoea cordatotriloba var. torreyana (A. Gray) D.F. Austin | Accepted |  | TRO |  | 
	
		| Ipomoea cordifolia Carey ex Voigt | Unresolved |  | IPNI |  | 
	
		| Ipomoea cordifolia Ten. ex Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea cordigera Mart. ex Regel | Unresolved |  | IPNI |  | 
	
		| Ipomoea cordobana Peter | Unresolved |  | IPNI |  | 
	
		| Ipomoea cordofana Choisy | Unresolved |  | TRO |  | 
	
		| Ipomoea coriacea Choisy | Accepted |  | TRO |  | 
	
		| Ipomoea cornucopia Chodat & Hassl. | Unresolved |  | TRO |  | 
	
		| Ipomoea corralinensis Choisy ex A. DC. | Unresolved |  | TRO |  | 
	
		| Ipomoea corrugata Thulin | Unresolved |  | IPNI |  | 
	
		| Ipomoea corumbaensis Hoehne | Unresolved |  | IPNI |  | 
	
		| Ipomoea corymbosa (L.) Roth | Synonym |  | TRO |  | 
	
		| Ipomoea coscinosperma Hochst. ex Choisy | Accepted |  | TRO |  | 
	
		| Ipomoea costaricensis Kuntze | Synonym |  | TRO |  | 
	
		| Ipomoea costata F. Muell. ex Benth. | Unresolved |  | TRO |  | 
	
		| Ipomoea costellata Torr. | Accepted |  | TRO |  | 
	
		| Ipomoea courchetii Gagnep. | Unresolved |  | IPNI |  | 
	
		| Ipomoea crassicaulis (Benth.) B.L. Rob. | Unresolved |  | TRO |  | 
	
		| Ipomoea crassifolia Cav. | Accepted |  | TRO |  | 
	
		| Ipomoea crassipes Hook. | Accepted |  | TRO |  | 
	
		| Ipomoea crepidiformis Hallier f. | Unresolved |  | TRO |  | 
	
		| Ipomoea crinicalyx S. Moore | Accepted |  | TRO |  | 
	
		| Ipomoea crinigera Oliv. | Unresolved |  | IPNI |  | 
	
		| Ipomoea crinita Brandegee | Synonym |  | TRO |  | 
	
		| Ipomoea crispa Hallier f. | Accepted |  | TRO |  | 
	
		| Ipomoea cristulata Hallier f. | Accepted |  | TRO |  | 
	
		| Ipomoea crotonifolia Gardner | Unresolved |  | TRO |  | 
	
		| Ipomoea cruckshanksii Choisy | Unresolved |  | TRO |  | 
	
		| Ipomoea cubensis (House) Urb. | Accepted |  | TRO |  | 
	
		| Ipomoea cuernavacensis House | Unresolved |  | TRO |  | 
	
		| Ipomoea cumanensis G.Don | Unresolved |  | IPNI |  | 
	
		| Ipomoea cuneifolia Meisn. | Accepted |  | TRO |  | 
	
		| Ipomoea cuprinacoma E. Carranza & J.A. McDonald | Accepted |  | TRO |  | 
	
		| Ipomoea curassavica Balb. | Unresolved |  | IPNI |  | 
	
		| Ipomoea curtipes Rendle | Unresolved |  | IPNI |  | 
	
		| Ipomoea curtissii House | Synonym |  | TRO |  | 
	
		| Ipomoea curtoi Rendle | Unresolved |  | IPNI |  | 
	
		| Ipomoea cuspidata Ruiz & Pav. | Synonym |  | TRO |  | 
	
		| Ipomoea cyamoclita St.-Lag. | Unresolved |  | IPNI |  | 
	
		| Ipomoea cyanantha Griseb. | Accepted |  | TRO |  | 
	
		| Ipomoea cymbalaria Fenzl | Unresolved |  | IPNI |  | 
	
		| Ipomoea cymosa (Desr.) Roem. & Schult. | Synonym |  | TRO |  | 
	
		| Ipomoea cymosa var. macra C.B. Clarke | Synonym |  | TRO |  | 
	
		| Ipomoea cynanchifolia Meisn. | Accepted |  | TRO |  | 
	
		| Ipomoea dactylophylla Griseb. | Synonym |  | TRO |  | 
	
		| Ipomoea dajabonensis Alain | Unresolved |  | WCSP (in review) |  | 
	
		| Ipomoea dammarana Rendle | Synonym |  | TRO |  | 
	
		| Ipomoea dammeriana De Wild. | Unresolved |  | IPNI |  | 
	
		| Ipomoea darainensis Deroin, Ranir. & Nusb. | Unresolved |  | WCSP (in review) |  | 
	
		| Ipomoea dasyclada Pilg. | Unresolved |  | IPNI |  | 
	
		| Ipomoea dasysperma Jacq. | Synonym |  | TRO |  | 
	
		| Ipomoea dasysperma var. odontosepala Verdc. | Synonym |  | TRO |  | 
	
		| Ipomoea daturiflora Meisn. | Accepted |  | TRO |  | 
	
		| Ipomoea davenportii F.Muell. | Unresolved |  | IPNI |  | 
	
		| Ipomoea davidsoniae Standl. | Synonym |  | TRO |  | 
	
		| Ipomoea dealbata (M. Martens & Galeotti) Hemsl. | Synonym |  | TRO |  | 
	
		| Ipomoea debeerstii De Wild. | Unresolved |  | IPNI |  | 
	
		| Ipomoea debilis Bojer ex Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea decaisnei Ooststr. | Unresolved |  | IPNI |  | 
	
		| Ipomoea decasperma Hallier f. | Accepted |  | TRO |  | 
	
		| Ipomoea deccana D.F. Austin | Unresolved |  | TRO |  | 
	
		| Ipomoea decemcornuta O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea decipiens Dammer | Accepted |  | TRO |  | 
	
		| Ipomoea declinata Mart. ex Meisn. | Unresolved |  | IPNI |  | 
	
		| Ipomoea decora Meisn. | Accepted |  | TRO |  | 
	
		| Ipomoea decorsei A.Chev. | Unresolved |  | IPNI |  | 
	
		| Ipomoea dehniae Merxm. | Unresolved |  | IPNI |  | 
	
		| Ipomoea delphinifolia M. Martens & Galeotti | Synonym |  | TRO |  | 
	
		| Ipomoea delphinioides Choisy | Accepted |  | TRO |  | 
	
		| Ipomoea delpierrei De Wild. | Unresolved |  | IPNI |  | 
	
		| Ipomoea demerariana Choisy | Synonym |  | TRO |  | 
	
		| Ipomoea demissa Hallier f. | Synonym |  | TRO |  | 
	
		| Ipomoea dendroidea Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea densibracteata O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea dentata (Vahl) Roem. & Schult. | Synonym |  | TRO |  | 
	
		| Ipomoea denticulata R.Br. | Unresolved |  | IPNI |  | 
	
		| Ipomoea denticulata Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea deppeana G. Don | Unresolved |  | TRO |  | 
	
		| Ipomoea descolei O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea desertorum House | Synonym |  | TRO |  | 
	
		| Ipomoea desmophylla Bojer ex Choisy | Accepted |  | TRO |  | 
	
		| Ipomoea desmophylla var. oblonga Choisy | Synonym |  | TRO |  | 
	
		| Ipomoea desrousseauxii Steud. | Accepted |  | TRO |  | 
	
		| Ipomoea diamantinensis J.M. Black | Unresolved |  | TRO |  | 
	
		| Ipomoea diantha Roem. & Schult. | Unresolved |  | IPNI |  | 
	
		| Ipomoea dichoroa Hochst. in A. Rich. | Synonym |  | TRO |  | 
	
		| Ipomoea dichotoma Kunth | Synonym |  | TRO |  | 
	
		| Ipomoea dichotoma var. trilobata Meisn. | Synonym |  | TRO |  | 
	
		| Ipomoea dichroa Choisy | Unresolved |  | TRO |  | 
	
		| Ipomoea diegoae M.C.Lara | Accepted |  | TRO |  | 
	
		| Ipomoea diehlii M.E. Jones | Unresolved |  | TRO |  | 
	
		| Ipomoea digitata L. | Synonym |  | TRO |  | 
	
		| Ipomoea digitata var. septempartita Meisn. | Synonym |  | TRO |  | 
	
		| Ipomoea digitifolia Sweet | Unresolved |  | IPNI |  | 
	
		| Ipomoea dillenii Roem. & Schult. | Unresolved |  | IPNI |  | 
	
		| Ipomoea dimorphophylla Greenm. | Synonym |  | TRO |  | 
	
		| Ipomoea dinteri Schulze-Menz | Unresolved |  | IPNI |  | 
	
		| Ipomoea diplocalyx Baker | Unresolved |  | IPNI |  | 
	
		| Ipomoea diriadactylina Hammel | Unresolved |  | TRO |  | 
	
		| Ipomoea discoidesperma Donn. Sm. | Synonym |  | TRO |  | 
	
		| Ipomoea discolor (Kunth) G. Don | Accepted |  | TRO |  | 
	
		| Ipomoea dissecta Willd. | Synonym |  | TRO |  | 
	
		| Ipomoea dissecta (Jacq.) Pers. | Synonym |  | TRO |  | 
	
		| Ipomoea dissecta var. maximiliani Meisn. | Synonym |  | TRO |  | 
	
		| Ipomoea distans Choisy ex DC. | Accepted |  | TRO |  | 
	
		| Ipomoea divergens House | Synonym |  | TRO |  | 
	
		| Ipomoea diversifolia Lindl. | Synonym |  | TRO |  | 
	
		| Ipomoea domingensis (Desr.) House | Synonym |  | TRO |  | 
	
		| Ipomoea donaldsonii Rendle | Unresolved |  | TRO |  | 
	
		| Ipomoea dubia Roem. & Schult. | Accepted |  | TRO |  | 
	
		| Ipomoea dumetorum Willd. ex Roem. & Schult. | Accepted |  | TRO |  | 
	
		| Ipomoea dumetorum f. alba Moldenke | Synonym |  | TRO |  | 
	
		| Ipomoea dumetorum var. glaucescens Choisy | Synonym |  | TRO |  | 
	
		| Ipomoea dumosa (Benth.) L.O. Williams | Accepted |  | TRO |  | 
	
		| Ipomoea durangensis House | Accepted |  | TRO |  | 
	
		| Ipomoea duvigneaudii Lejoly & Lisowski | Unresolved |  | IPNI |  | 
	
		| Ipomoea eberhardtii Gagnep. | Synonym |  | TRO |  | 
	
		| Ipomoea ebracteata (Poir.) Choisy | Synonym |  | TRO |  | 
	
		| Ipomoea echinocalyx Meisn. | Accepted |  | TRO |  | 
	
		| Ipomoea echioides Choisy | Accepted |  | TRO |  | 
	
		| Ipomoea edithae Gage | Unresolved |  | IPNI |  | 
	
		| Ipomoea edulis Niederl. | Accepted |  | TRO |  | 
	
		| Ipomoea edulis (Thunb.) Makino | Synonym |  | TRO |  | 
	
		| Ipomoea edwardsii Regel | Unresolved |  | IPNI |  | 
	
		| Ipomoea eenii Rendle | Synonym |  | TRO |  | 
	
		| Ipomoea eggersiana Peter | Unresolved |  | IPNI |  | 
	
		| Ipomoea eggersii (House) D.F. Austin | Accepted |  | TRO |  | 
	
		| Ipomoea egregia House | Synonym |  | TRO |  | 
	
		| Ipomoea electrina D.F. Austin & J.A. McDonald | Accepted |  | TRO |  | 
	
		| Ipomoea elegans Meisn. | Unresolved |  | TRO |  | 
	
		| Ipomoea elegantissima Hort. | Unresolved |  | IPNI |  | 
	
		| Ipomoea elliottii Baker | Unresolved |  | IPNI |  | 
	
		| Ipomoea elliptica Roth | Unresolved |  | IPNI |  | 
	
		| Ipomoea elongata Choisy | Accepted |  | TRO |  | 
	
		| Ipomoea elythrocephala Hallier f. | Unresolved |  | TRO |  | 
	
		| Ipomoea emarginata Kuntze | Unresolved |  | IPNI |  | 
	
		| Ipomoea emeiensis Z.Y. Zhu | Accepted |  | TRO |  | 
	
		| Ipomoea emetica Choisy | Accepted |  | TRO |  | 
	
		| Ipomoea eminii Hallier f. | Unresolved |  | IPNI |  | 
	
		| Ipomoea engleriana Dammer ex Engl. | Unresolved |  | IPNI |  | 
	
		| Ipomoea ennealoba P. Beauv. | Unresolved |  | TRO |  | 
	
		| Ipomoea ephemera Verdc. | Unresolved |  | IPNI |  | 
	
		| Ipomoea equitans M.E. Jones | Synonym |  | TRO |  | 
	
		| Ipomoea erecta R.Br. | Unresolved |  | IPNI |  | 
	
		| Ipomoea erecta Michx. | Unresolved |  | IPNI |  | 
	
		| Ipomoea eremnobrocha D.F. Austin | Accepted |  | TRO |  | 
	
		| Ipomoea ericoides Meisn. | Synonym |  | TRO |  | 
	
		| Ipomoea eriocalyx Mart. | Accepted |  | TRO |  | 
	
		| Ipomoea eriocarpa R. Br. | Accepted |  | TRO |  | 
	
		| Ipomoea eriocephala Moric. | Synonym |  | TRO |  | 
	
		| Ipomoea erioleuca Hallier f. | Unresolved |  | IPNI |  | 
	
		| Ipomoea eriosperma P. Beauv. | Unresolved |  | TRO |  | 
	
		| Ipomoea erosa Urb. | Accepted |  | TRO |  | 
	
		| Ipomoea erubescens Hort. ex Vilmorin | Unresolved |  | IPNI |  | 
	
		| Ipomoea erythraea Moc. & Sess | Unresolved |  | IPNI |  | 
	
		| Ipomoea estrellensis O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea eurysepala Hallier f. | Unresolved |  | IPNI |  | 
	
		| Ipomoea eustachiana Jacq. | Synonym |  | TRO |  | 
	
		| Ipomoea evolvuloides Moric. | Synonym |  | TRO |  | 
	
		| Ipomoea excisa Urb. | Accepted |  | TRO |  | 
	
		| Ipomoea eximia House | Accepted |  | TRO |  | 
	
		| Ipomoea expansa J.A. McDonald | Accepted |  | TRO |  | 
	
		| Ipomoea fairriei H.L | Unresolved |  | IPNI |  | 
	
		| Ipomoea falcata R.E.Fr. | Unresolved |  | IPNI |  | 
	
		| Ipomoea falkioides Griseb. | Accepted |  | TRO |  | 
	
		| Ipomoea fanshawei Verdc. | Unresolved |  | IPNI |  | 
	
		| Ipomoea fastigiata (Roxb.) Sweet | Synonym |  | TRO |  | 
	
		| Ipomoea fawcettii Urb. | Unresolved |  | TRO |  | 
	
		| Ipomoea federalis K. Afzel. | Unresolved |  | TRO |  | 
	
		| Ipomoea fendleriana Kuntze | Synonym |  | TRO |  | 
	
		| Ipomoea ferruginea Roem.&Schul. | Unresolved |  | TRO |  | 
	
		| Ipomoea ficifolia Lindl. | Accepted |  | TRO |  | 
	
		| Ipomoea fiebrigii O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea filicaulis Blume | Unresolved |  | TRO |  | 
	
		| Ipomoea filifolia G.Don | Unresolved |  | IPNI |  | 
	
		| Ipomoea filiformis Jacq. | Synonym |  | TRO |  | 
	
		| Ipomoea filipedunculata Rusby | Synonym |  | TRO |  | 
	
		| Ipomoea filipes Benth. ex Meisn. | Synonym |  | TRO |  | 
	
		| Ipomoea fimbriosepala Choisy | Accepted |  | TRO |  | 
	
		| Ipomoea fissifolia (McPherson) Eckenw. | Accepted |  | TRO |  | 
	
		| Ipomoea fistulosa Mart. ex Choisy | Unresolved |  | TRO |  | 
	
		| Ipomoea fistulosa var. nicaraguensis Donn. Sm. | Synonym |  | TRO |  | 
	
		| Ipomoea flagellaris Choisy | Synonym |  | TRO |  | 
	
		| Ipomoea flagelliformis Steud. | Unresolved |  | IPNI |  | 
	
		| Ipomoea flammea Nees | Unresolved |  | IPNI |  | 
	
		| Ipomoea flava F.Muell. ex Benth. | Unresolved |  | IPNI |  | 
	
		| Ipomoea flavescens Steud. | Unresolved |  | IPNI |  | 
	
		| Ipomoea flavida L.O. Williams | Synonym |  | TRO |  | 
	
		| Ipomoea flavivillosa Schulze-Menz | Unresolved |  | TRO |  | 
	
		| Ipomoea flavopurpurea Urb. | Accepted |  | TRO |  | 
	
		| Ipomoea fleuryana A. Chev. | Unresolved |  | TRO |  | 
	
		| Ipomoea floccosa Vatke | Unresolved |  | IPNI |  | 
	
		| Ipomoea florentiana Hoehne | Unresolved |  | IPNI |  | 
	
		| Ipomoea floribunda Moric. | Synonym |  | TRO |  | 
	
		| Ipomoea floribunda (Kunth) G. Don | Synonym |  | TRO |  | 
	
		| Ipomoea forskolei Steud. | Unresolved |  | IPNI |  | 
	
		| Ipomoea forsteri A.Gray ex H.Mann. | Unresolved |  | IPNI |  | 
	
		| Ipomoea fragilis Choisy | Synonym |  | TRO |  | 
	
		| Ipomoea fragrans (Bojer ex Choisy) Bojer ex Hallier f. | Synonym |  | TRO |  | 
	
		| Ipomoea fragrans (Bojer ex Choisy) Baker | Synonym |  | TRO |  | 
	
		| Ipomoea franciscana Choisy | Accepted |  | TRO |  | 
	
		| Ipomoea frondosa G.Don | Unresolved |  | IPNI |  | 
	
		| Ipomoea frutescens Hort.Par. ex Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea fruticosa Kuntze | Unresolved |  | TRO |  | 
	
		| Ipomoea fuchsioides Griseb. | Accepted |  | TRO |  | 
	
		| Ipomoea fulva Bertol. | Synonym |  | TRO |  | 
	
		| Ipomoea fulvicaulis (Hochst. ex Choisy) Hallier f. | Accepted |  | TRO |  | 
	
		| Ipomoea fulvicaulis var. asperifolia (Hallier f.) Verdc. | Accepted |  | TRO |  | 
	
		| Ipomoea fulvicoma Hance | Accepted |  | TRO |  | 
	
		| Ipomoea funaria Larrañaga | Synonym |  | TRO |  | 
	
		| Ipomoea funis Schltdl. & Cham. | Accepted |  | TRO |  | 
	
		| Ipomoea funis var. funis | Synonym |  | TRO |  | 
	
		| Ipomoea funis var. langlassei (House) O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea furcyensis Urb. | Accepted |  | TRO |  | 
	
		| Ipomoea fusca Meisn. | Unresolved |  | IPNI |  | 
	
		| Ipomoea futilis A. Nelson | Synonym |  | TRO |  | 
	
		| Ipomoea gabrielii Choisy | Unresolved |  | TRO |  | 
	
		| Ipomoea galaclorrhoea Hallier f. | Unresolved |  | IPNI |  | 
	
		| Ipomoea galapagensis Andersson | Synonym |  | TRO |  | 
	
		| Ipomoea galhareriana Thulin | Unresolved |  | IPNI |  | 
	
		| Ipomoea gangetica Sweet | Synonym |  | TRO |  | 
	
		| Ipomoea garckeana Vatke | Unresolved |  | TRO |  | 
	
		| Ipomoea garnieri Standl. & L.O. Williams | Synonym |  | TRO |  | 
	
		| Ipomoea gemella (Burm. f.) Roth | Synonym |  | TRO |  | 
	
		| Ipomoea geminiflora Welw. p.p. | Synonym |  | TRO |  | 
	
		| Ipomoea gentryi Standl. | Synonym |  | TRO |  | 
	
		| Ipomoea geophilifolia K.Afzel. | Unresolved |  | IPNI |  | 
	
		| Ipomoea geranioides Meisn. | Unresolved |  | IPNI |  | 
	
		| Ipomoea gerrardiana Rendle | Unresolved |  | TRO |  | 
	
		| Ipomoea gerrardii Hook. f. | Synonym |  | TRO |  | 
	
		| Ipomoea gesnerioides J.A. McDonald | Accepted |  | TRO |  | 
	
		| Ipomoea ghikae Volkens & Schweinf. | Unresolved |  | IPNI |  | 
	
		| Ipomoea gigantea (Silva Manso) Choisy | Accepted |  | TRO |  | 
	
		| Ipomoea gillei Staner | Unresolved |  | IPNI |  | 
	
		| Ipomoea gilletii De Wild. & T.Durand | Unresolved |  | IPNI |  | 
	
		| Ipomoea githaginea Hochst. ex A.Rich. | Unresolved |  | IPNI |  | 
	
		| Ipomoea glaberrima Bojer ex Hook. | Synonym |  | TRO |  | 
	
		| Ipomoea glabra (Aubl.) Choisy | Synonym |  | TRO |  | 
	
		| Ipomoea glabriuscula House | Synonym |  | TRO |  | 
	
		| Ipomoea glandulifera Ruiz & Pav. | Synonym |  | TRO |  | 
	
		| Ipomoea glaucescens G.Don | Unresolved |  | IPNI |  | 
	
		| Ipomoea glaucifolia L. | Unresolved |  | IPNI |  | 
	
		| Ipomoea glaziovii Dammer | Unresolved |  | TRO |  | 
	
		| Ipomoea glenieii Thwaites ex C.B.Clarke | Unresolved |  | IPNI |  | 
	
		| Ipomoea globosa (La Llave) Meisn. | Synonym |  | TRO |  | 
	
		| Ipomoea glossophylla Chiov. | Unresolved |  | IPNI |  | 
	
		| Ipomoea gloverae J.A. McDonald | Accepted |  | TRO |  | 
	
		| Ipomoea glutinosa Dammer | Unresolved |  | IPNI |  | 
	
		| Ipomoea gnaphalosperma Hochst. ex Choisy | Unresolved |  | TRO |  | 
	
		| Ipomoea gomezii C.B.Clarke | Unresolved |  | IPNI |  | 
	
		| Ipomoea goodellii Hort. ex O.Deg. | Unresolved |  | IPNI |  | 
	
		| Ipomoea gossipifolia Steud. | Unresolved |  | IPNI |  | 
	
		| Ipomoea gossweileri Rendle | Unresolved |  | IPNI |  | 
	
		| Ipomoea gossypiifolia Willd. | Unresolved |  | IPNI |  | 
	
		| Ipomoea gossypina Deflers | Unresolved |  | IPNI |  | 
	
		| Ipomoea gossypina Deflers ex Hallier f. | Unresolved |  | IPNI |  | 
	
		| Ipomoea gossypioides Parodi | Unresolved |  | TRO |  | 
	
		| Ipomoea gossypioides Hort. ex Dammann | Unresolved |  | TRO |  | 
	
		| Ipomoea goyazensis Gardner | Accepted |  | TRO |  | 
	
		| Ipomoea gracilior Rendle | Unresolved |  | TRO |  | 
	
		| Ipomoea gracilipes Hassl. | Synonym |  | TRO |  | 
	
		| Ipomoea gracilis R. Br. | Unresolved |  | TRO |  | 
	
		| Ipomoea gracilisepala Rendle | Accepted |  | TRO |  | 
	
		| Ipomoea gracillima Peter | Synonym |  | TRO |  | 
	
		| Ipomoea gracillima (Collett & Hemsl.) Prain | Synonym |  | TRO |  | 
	
		| Ipomoea graminea R.Br. | Unresolved |  | IPNI |  | 
	
		| Ipomoea graminiformis Meisn. | Unresolved |  | TRO |  | 
	
		| Ipomoea graminoides Meisn. | Unresolved |  | IPNI |  | 
	
		| Ipomoea grandidentata C.H. Thomps. | Unresolved |  | TRO |  | 
	
		| Ipomoea grandiflora Lam. | Synonym |  | TRO |  | 
	
		| Ipomoea grandifolia (Dammer) O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea grantii Oliv. | Unresolved |  | TRO |  | 
	
		| Ipomoea granulata Parodi | Unresolved |  | IPNI |  | 
	
		| Ipomoea granulosa Chodat & Hassl. | Accepted |  | TRO |  | 
	
		| Ipomoea graveolens Rojas | Unresolved |  | IPNI |  | 
	
		| Ipomoea grayi Rose | Synonym |  | TRO |  | 
	
		| Ipomoea greenstockii Rendle | Synonym |  | TRO |  | 
	
		| Ipomoea grisebachiana Meisn. | Synonym |  | TRO |  | 
	
		| Ipomoea grisebachii Prain | Unresolved |  | TRO |  | 
	
		| Ipomoea guaranitica Chodat & Hassl. | Accepted |  | TRO |  | 
	
		| Ipomoea guineensis G.Don | Unresolved |  | IPNI |  | 
	
		| Ipomoea guyanensis (Aubl.) Choisy | Synonym |  | TRO |  | 
	
		| Ipomoea habeliana Oliv. | Accepted |  | TRO |  | 
	
		| Ipomoea hackeliana (Schinz) Hallier f. | Accepted |  | TRO |  | 
	
		| Ipomoea haenkeana Choisy | Accepted |  | TRO |  | 
	
		| Ipomoea halierca I.M. Johnst. | Accepted |  | TRO |  | 
	
		| Ipomoea hallieriana Britten | Unresolved |  | IPNI |  | 
	
		| Ipomoea halophila Miq. | Unresolved |  | IPNI |  | 
	
		| Ipomoea halophyla Poepp. ex Steud. | Unresolved |  | IPNI |  | 
	
		| Ipomoea hamiltonii G. Don | Synonym |  | TRO |  | 
	
		| Ipomoea hanningtonii Rendle | Unresolved |  | IPNI |  | 
	
		| Ipomoea hanningtonii Baker | Unresolved |  | IPNI |  | 
	
		| Ipomoea × hardingii Paxton | Unresolved |  | IPNI |  | 
	
		| Ipomoea hardwickii (Spreng.) Hemsl. | Synonym |  | TRO |  | 
	
		| Ipomoea harlingii D.F. Austin | Accepted |  | TRO |  | 
	
		| Ipomoea harmandii Gagnep. | Synonym |  | TRO |  | 
	
		| Ipomoea hartmannii Vatke | Unresolved |  | TRO |  | 
	
		| Ipomoea hartwegii Benth. | Accepted |  | TRO |  | 
	
		| Ipomoea hassleriana Chodat | Synonym |  | TRO |  | 
	
		| Ipomoea hastata L. | Unresolved |  | IPNI |  | 
	
		| Ipomoea hastata Haines | Unresolved |  | IPNI |  | 
	
		| Ipomoea hastifolia Domin | Unresolved |  | IPNI |  | 
	
		| Ipomoea hastigera Kunth | Accepted |  | TRO |  | 
	
		| Ipomoea hastigera var. hastigera | Synonym |  | TRO |  | 
	
		| Ipomoea hastigera var. jaliscana (House) O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea havanensis (Jacq.) Choisy | Synonym |  | TRO |  | 
	
		| Ipomoea haylocki Regel | Unresolved |  | IPNI |  | 
	
		| Ipomoea hederacea (L.) Jacq. | Synonym |  | WCSP (in review) |  | 
	
		| Ipomoea hederacea var. integriuscula A. Gray | Synonym |  | TRO |  | 
	
		| Ipomoea hederifolia L. | Accepted |  | TRO |  | 
	
		| Ipomoea hellebarda C. Schweinf. ex Hiern | Unresolved |  | TRO |  | 
	
		| Ipomoea henryi W. G. Craib | Synonym |  | TRO |  | 
	
		| Ipomoea hepaticifolia L. | Synonym |  | TRO |  | 
	
		| Ipomoea hephrophylla Meisn. | Synonym |  | TRO |  | 
	
		| Ipomoea heptaphylla Griseb. | Synonym |  | TRO |  | 
	
		| Ipomoea hermanniae (L'Hér.) G. Don | Synonym |  | TRO |  | 
	
		| Ipomoea herpeana Deroin | Accepted |  | TRO |  | 
	
		| Ipomoea heterocalyx Schulze-Menz | Unresolved |  | IPNI |  | 
	
		| Ipomoea heterodoxa Standl. & Steyerm. | Accepted |  | TRO |  | 
	
		| Ipomoea heterophylla Ortega | Synonym |  | TRO |  | 
	
		| Ipomoea heterophylla var. subcomosa House | Synonym |  | TRO |  | 
	
		| Ipomoea heterosepala Baker | Unresolved |  | IPNI |  | 
	
		| Ipomoea heterotricha Didr. | Synonym |  | TRO |  | 
	
		| Ipomoea heterotricha var. homotricha Chodat & Hassl. | Synonym |  | TRO |  | 
	
		| Ipomoea hewittioides Hallier f. | Unresolved |  | IPNI |  | 
	
		| Ipomoea heynei Roem. & Schult. | Unresolved |  | IPNI |  | 
	
		| Ipomoea heynei Wall. | Unresolved |  | IPNI |  | 
	
		| Ipomoea hierniana Rendle | Unresolved |  | TRO |  | 
	
		| Ipomoea hieronymi (Kuntze) O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea hieronymi var. calchaquina O'Donell | Synonym |  | TRO |  | 
	
		| Ipomoea hieronymi var. kurtziana (O'Donell) O'Donell | Synonym |  | TRO |  | 
	
		| Ipomoea hilarifolia Rusby | Unresolved |  | IPNI |  | 
	
		| Ipomoea hildebrandtii Vatke | Unresolved |  | TRO |  | 
	
		| Ipomoea hindeana Rendle | Unresolved |  | WCSP (in review) |  | 
	
		| Ipomoea hintonii L.O. Williams | Synonym |  | TRO |  | 
	
		| Ipomoea hiranensis Thulin | Unresolved |  | IPNI |  | 
	
		| Ipomoea hirsuta R. Br. | Unresolved |  | TRO |  | 
	
		| Ipomoea hirsuticaulis C.H.Wright | Unresolved |  | IPNI |  | 
	
		| Ipomoea hirsutissima Gardner | Accepted |  | TRO |  | 
	
		| Ipomoea hirsutula J. Jacq. | Synonym |  | TRO |  | 
	
		| Ipomoea hirta M. Martens & Galeotti | Unresolved |  | TRO |  | 
	
		| Ipomoea hirtiflora M. Martens & Galeotti | Synonym |  | TRO |  | 
	
		| Ipomoea hirtifolia R.C. Fang & S.H. Huang | Accepted |  | TRO |  | 
	
		| Ipomoea hispaniolae (Spreng.) G. Don | Synonym |  | TRO |  | 
	
		| Ipomoea hispida Zuccagni | Unresolved |  | WCSP (in review) |  | 
	
		| Ipomoea hispidula Ledeb. | Unresolved |  | IPNI |  | 
	
		| Ipomoea hochstetteri House | Accepted |  | TRO |  | 
	
		| Ipomoea hockii De Wild. | Unresolved |  | IPNI |  | 
	
		| Ipomoea holosericea Weinm. | Synonym |  | TRO |  | 
	
		| Ipomoea holosericea E. Mey. ex Choisy | Synonym |  | TRO |  | 
	
		| Ipomoea holstii Dammer ex Engl. | Unresolved |  | IPNI |  | 
	
		| Ipomoea holubii Baker | Synonym |  | TRO |  | 
	
		| Ipomoea homblei De Wild. | Unresolved |  | IPNI |  | 
	
		| Ipomoea homotrichoidea O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea hookeri G. Don | Synonym |  | TRO |  | 
	
		| Ipomoea hornei Baker | Unresolved |  | IPNI |  | 
	
		| Ipomoea horrida Huber | Unresolved |  | TRO |  | 
	
		| Ipomoea horsefieldiana Miq. | Synonym |  | TRO |  | 
	
		| Ipomoea horsfalliae Hook. | Accepted |  | TRO |  | 
	
		| Ipomoea hospitalis Urb. | Unresolved |  | TRO |  | 
	
		| Ipomoea hostmanni Meisn. | Synonym |  | TRO |  | 
	
		| Ipomoea hotteana Urb. & Ekman | Unresolved |  | TRO |  | 
	
		| Ipomoea hovarum Rendle | Unresolved |  | IPNI |  | 
	
		| Ipomoea huillensis Baker | Unresolved |  | IPNI |  | 
	
		| Ipomoea humboltiana Roem. & Schult. | Unresolved |  | TRO |  | 
	
		| Ipomoea humidicola Verdc. | Unresolved |  | IPNI |  | 
	
		| Ipomoea humifera Rendle & Britten | Unresolved |  | IPNI |  | 
	
		| Ipomoea humilis Raf. | Unresolved |  | IPNI |  | 
	
		| Ipomoea humilis G.Don | Unresolved |  | IPNI |  | 
	
		| Ipomoea hungaiensis Lingelsh. & Borza | Synonym |  | TRO |  | 
	
		| Ipomoea hungaiensis var. linifolia C.C. Huang | Synonym |  | TRO |  | 
	
		| Ipomoea hydrosmifolia A.Chev. | Unresolved |  | IPNI |  | 
	
		| Ipomoea hylophila Kerr | Unresolved |  | IPNI |  | 
	
		| Ipomoea hypargyrea Griseb. | Accepted |  | TRO |  | 
	
		| Ipomoea hypolenca Taub. | Unresolved |  | TRO |  | 
	
		| Ipomoea hypoleuca Taub. | Unresolved |  | IPNI |  | 
	
		| Ipomoea hypoxantha Hallier f. | Unresolved |  | IPNI |  | 
	
		| Ipomoea hystrix Hallier f. | Unresolved |  | TRO |  | 
	
		| Ipomoea igatimiana Parodi | Unresolved |  | IPNI |  | 
	
		| Ipomoea ignava House | Accepted |  | TRO |  | 
	
		| Ipomoea igualensis Weath. | Accepted |  | TRO |  | 
	
		| Ipomoea illustris Prain | Unresolved |  | IPNI |  | 
	
		| Ipomoea imbricata Roth | Unresolved |  | IPNI |  | 
	
		| Ipomoea imbricata Parodi | Unresolved |  | IPNI |  | 
	
		| Ipomoea imperati (Vahl) Griseb. | Accepted |  | TRO |  | 
	
		| Ipomoea imperialis Hort. | Unresolved |  | IPNI |  | 
	
		| Ipomoea inamoena Pilg. | Unresolved |  | TRO |  | 
	
		| Ipomoea incana Chiov. | Unresolved |  | IPNI |  | 
	
		| Ipomoea incarnata (Vahl) Choisy | Accepted |  | TRO |  | 
	
		| Ipomoea incerta (Britton) Urb. | Accepted |  | TRO |  | 
	
		| Ipomoea incisa R.Br. | Unresolved |  | IPNI |  | 
	
		| Ipomoea incomta Hallier f. | Synonym |  | TRO |  | 
	
		| Ipomoea inconspicua Baker | Unresolved |  | IPNI |  | 
	
		| Ipomoea incurva G.Don | Unresolved |  | IPNI |  | 
	
		| Ipomoea indica (Burm.) Merr. | Accepted |  | TRO |  | 
	
		| Ipomoea indica var. acuminata (Vahl) Fosberg | Synonym |  | TRO |  | 
	
		| Ipomoea indica var. hosakae Fosberg | Synonym |  | TRO |  | 
	
		| Ipomoea indica var. variabilis (Schltdl. & Cham.) L.O. Williams | Synonym |  | TRO |  | 
	
		| Ipomoea indivisa (Vell.) Hallier f. | Accepted |  | TRO |  | 
	
		| Ipomoea insignis Andrews | Unresolved |  | TRO |  | 
	
		| Ipomoea insuavis Blume | Synonym |  | TRO |  | 
	
		| Ipomoea insularis (Choisy) Steud. | Synonym |  | TRO |  | 
	
		| Ipomoea intermedia Schult. | Unresolved |  | IPNI |  | 
	
		| Ipomoea intrapilosa Rose | Accepted |  | TRO |  | 
	
		| Ipomoea intricata Pilg. | Unresolved |  | IPNI |  | 
	
		| Ipomoea invicta House | Accepted |  | TRO |  | 
	
		| Ipomoea involucrata P. Beauv. | Synonym |  | TRO |  | 
	
		| Ipomoea iodantha Brandegee | Synonym |  | TRO |  | 
	
		| Ipomoea iostemma House | Synonym |  | TRO |  | 
	
		| Ipomoea irengana N.E.Br. | Unresolved |  | IPNI |  | 
	
		| Ipomoea irwiniae Verdc. | Unresolved |  | TRO |  | 
	
		| Ipomoea jacalana Matuda | Accepted |  | TRO |  | 
	
		| Ipomoea jacquinii Regel | Unresolved |  | IPNI |  | 
	
		| Ipomoea jaegeri Pilg. | Unresolved |  | TRO |  | 
	
		| Ipomoea jalapa (L.) Pursh | Accepted |  | TRO |  | 
	
		| Ipomoea jalapoida Griseb. | Unresolved |  | IPNI |  | 
	
		| Ipomoea jalapoides Griseb. | Accepted |  | TRO |  | 
	
		| Ipomoea jaliscana House | Synonym |  | TRO |  | 
	
		| Ipomoea jamaicensis G. Don | Accepted |  | TRO |  | 
	
		| Ipomoea jamesonii Choisy | Synonym |  | TRO |  | 
	
		| Ipomoea japonica Roem. & Schult. | Unresolved |  | IPNI |  | 
	
		| Ipomoea jicama Brandegee | Accepted |  | TRO |  | 
	
		| Ipomoea jucunda Thwaites | Unresolved |  | IPNI |  | 
	
		| Ipomoea jujuyensis O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea juncea Choisy | Synonym |  | TRO |  | 
	
		| Ipomoea juramenti (Kuntze) O'Donell | Synonym |  | TRO |  | 
	
		| Ipomoea kadsura Choisy | Synonym |  | TRO |  | 
	
		| Ipomoea kadsuru Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea karwinskiana Regel | Unresolved |  | TRO |  | 
	
		| Ipomoea kassneri Rendle | Unresolved |  | IPNI |  | 
	
		| Ipomoea kassneri Pilg. | Unresolved |  | IPNI |  | 
	
		| Ipomoea katangensis Lisowski & J.Wiland-Szyma | Unresolved |  | IPNI |  | 
	
		| Ipomoea katgurhiensis Hoffmanns. | Unresolved |  | IPNI |  | 
	
		| Ipomoea kentrocarpa Hochst. ex A. Rich. | Synonym |  | TRO |  | 
	
		| Ipomoea kentrocaulos C.B. Clarke | Synonym |  | TRO |  | 
	
		| Ipomoea keraudreniae Deroin | Accepted |  | TRO |  | 
	
		| Ipomoea kerberi Sprenger | Unresolved |  | IPNI |  | 
	
		| Ipomoea kerberii (E. Fourn.) hort. ex E. Fourn. | Synonym |  | TRO |  | 
	
		| Ipomoea kermesina Hort. | Unresolved |  | IPNI |  | 
	
		| Ipomoea kiiruninsularis Masam. | Unresolved |  | IPNI |  | 
	
		| Ipomoea kilimandschari Dammer | Synonym |  | TRO |  | 
	
		| Ipomoea killipiana O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea kilwaensis Pilg. | Unresolved |  | TRO |  | 
	
		| Ipomoea kinbergii Andersson | Synonym |  | TRO |  | 
	
		| Ipomoea kingii Diels | Unresolved |  | TRO |  | 
	
		| Ipomoea kirkiana Britten | Unresolved |  | IPNI |  | 
	
		| Ipomoea kirkii Britten | Unresolved |  | TRO |  | 
	
		| Ipomoea kituiensis Vatke | Unresolved |  | TRO |  | 
	
		| Ipomoea kiuninsularis Masam. | Synonym |  | TRO |  | 
	
		| Ipomoea kleiniana Roem. & Schult. | Unresolved |  | IPNI |  | 
	
		| Ipomoea klotzschii Dammer | Unresolved |  | IPNI |  | 
	
		| Ipomoea koloaensis H.L | Unresolved |  | IPNI |  | 
	
		| Ipomoea kotschyana Hochst. ex Choisy | Unresolved |  | TRO |  | 
	
		| Ipomoea kourankoenis A. Chev. | Unresolved |  | TRO |  | 
	
		| Ipomoea krugii Urb. | Unresolved |  | TRO |  | 
	
		| Ipomoea kruseana Matuda | Accepted |  | TRO |  | 
	
		| Ipomoea krusensternii Ledeb. | Unresolved |  | IPNI |  | 
	
		| Ipomoea kunthiana Meisn. | Accepted |  | TRO |  | 
	
		| Ipomoea kurtziana O'Donell | Synonym |  | TRO |  | 
	
		| Ipomoea kwebensis N.E. Br. | Synonym |  | TRO |  | 
	
		| Ipomoea lachnaea Spreng. | Accepted |  | TRO |  | 
	
		| Ipomoea lachnosperma Choisy | Synonym |  | TRO |  | 
	
		| Ipomoea laciniata Balf.f. | Unresolved |  | IPNI |  | 
	
		| Ipomoea laciniata C.B.Clarke | Unresolved |  | IPNI |  | 
	
		| Ipomoea lactea Wall. ex Voigt | Unresolved |  | IPNI |  | 
	
		| Ipomoea lacteola House | Accepted |  | TRO |  | 
	
		| Ipomoea lactescens Benth. | Synonym |  | TRO |  | 
	
		| Ipomoea lacunosa L. | Accepted |  | TRO |  | 
	
		| Ipomoea lacunosa f. lacunosa | Synonym |  | TRO |  | 
	
		| Ipomoea lacunosa f. purpurata Fernald | Synonym |  | TRO |  | 
	
		| Ipomoea laeta A. Gray | Accepted |  | TRO |  | 
	
		| Ipomoea laevigata Steud. | Unresolved |  | IPNI |  | 
	
		| Ipomoea laevigata Sol. ex Benth. | Unresolved |  | IPNI |  | 
	
		| Ipomoea lambii Fernald | Accepted |  | TRO |  | 
	
		| Ipomoea lambtoniana Rendle | Synonym |  | TRO |  | 
	
		| Ipomoea lanata E.A. Bruce | Unresolved |  | TRO |  | 
	
		| Ipomoea lanceolata G. Don | Synonym |  | TRO |  | 
	
		| Ipomoea langsdorffii Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea lanuginosa O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea lapathifolia Hallier f. | Accepted |  | TRO |  | 
	
		| Ipomoea lapathifolia var. bussei (Pilg.) Verdc. | Accepted |  | TRO |  | 
	
		| Ipomoea lapidosa Vatke | Unresolved |  | TRO |  | 
	
		| Ipomoea lasioclada Choisy | Synonym |  | TRO |  | 
	
		| Ipomoea lasioclados Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea lasiophylla Hallier f. | Synonym |  | TRO |  | 
	
		| Ipomoea latiflora Lindl. | Unresolved |  | IPNI |  | 
	
		| Ipomoea latiflora Roem. & Schult. | Unresolved |  | IPNI |  | 
	
		| Ipomoea latifolia M. Martens & Galeotti | Unresolved |  | TRO |  | 
	
		| Ipomoea latisepala E.A.Bruce | Unresolved |  | IPNI |  | 
	
		| Ipomoea laurifolia Sweet | Unresolved |  | IPNI |  | 
	
		| Ipomoea laxiflora H.J.Chowdhery & Debta | Unresolved |  | WCSP (in review) |  | 
	
		| Ipomoea learii Knight ex J. Paxton | Synonym |  | TRO |  | 
	
		| Ipomoea ledebourii Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea ledermannii Pilg. | Unresolved |  | IPNI |  | 
	
		| Ipomoea leiocalyx Herb. ex Bruns | Unresolved |  | IPNI |  | 
	
		| Ipomoea lemmonii A. Gray | Synonym |  | TRO |  | 
	
		| Ipomoea lenis House | Accepted |  | TRO |  | 
	
		| Ipomoea leonensis B.L. Rob. | Accepted |  | TRO |  | 
	
		| Ipomoea lepidophora Lebrun & Taton | Unresolved |  | IPNI |  | 
	
		| Ipomoea leprieurii D.F. Austin | Accepted |  | TRO |  | 
	
		| Ipomoea leptocaulos Hallier f. | Unresolved |  | TRO |  | 
	
		| Ipomoea leptophylla Torr. | Accepted |  | TRO |  | 
	
		| Ipomoea leptosiphon S. Watson | Synonym |  | TRO |  | 
	
		| Ipomoea leptotoma Torr. | Accepted |  | TRO |  | 
	
		| Ipomoea leptotoma var. wootonii E.H. Kelso | Synonym |  | TRO |  | 
	
		| Ipomoea lesteri Baker | Unresolved |  | TRO |  | 
	
		| Ipomoea leucantha Jacq. | Unresolved |  | TRO |  | 
	
		| Ipomoea × leucantha Jacq. | Accepted |  | TRO |  | 
	
		| Ipomoea leucanthemum Hallier f. | Accepted |  | TRO |  | 
	
		| Ipomoea leuconeura Urb. | Synonym |  | TRO |  | 
	
		| Ipomoea leucotricha Donn. Sm. | Accepted |  | TRO |  | 
	
		| Ipomoea ligulata Bojer | Synonym |  | TRO |  | 
	
		| Ipomoea lilacina Blume | Synonym |  | TRO |  | 
	
		| Ipomoea liliiflora R.E.Fr. | Unresolved |  | IPNI |  | 
	
		| Ipomoea lilloana O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea limbata Boerl. | Unresolved |  | IPNI |  | 
	
		| Ipomoea limbata Linden | Unresolved |  | IPNI |  | 
	
		| Ipomoea lindenii M. Martens & Galeotti | Accepted |  | TRO |  | 
	
		| Ipomoea lindheimeri A. Gray | Accepted |  | TRO |  | 
	
		| Ipomoea lindheimeri var. subintegra House | Synonym |  | TRO |  | 
	
		| Ipomoea lindleyi Choisy | Synonym |  | TRO |  | 
	
		| Ipomoea lindmanii Urb. | Accepted |  | TRO |  | 
	
		| Ipomoea linearifolia Hook. f. | Accepted |  | TRO |  | 
	
		| Ipomoea lineariloba Chiov. | Synonym |  | TRO |  | 
	
		| Ipomoea lineariloba Peter | Synonym |  | TRO |  | 
	
		| Ipomoea lineolata Urb. | Accepted |  | TRO |  | 
	
		| Ipomoea linifolia Blume | Synonym |  | TRO |  | 
	
		| Ipomoea linoides Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea linosepala Hallier f. | Unresolved |  | TRO |  | 
	
		| Ipomoea linosepala subsp. alpina (Rendle) Lejoly & Lisowski | Unresolved |  | TRO |  | 
	
		| Ipomoea littoralis Blume | Accepted |  | TRO |  | 
	
		| Ipomoea livescens Meisn. | Unresolved |  | IPNI |  | 
	
		| Ipomoea llaveana Meisn. | Synonym |  | TRO |  | 
	
		| Ipomoea lobata (Cerv.) Thell. | Accepted |  | TRO |  | 
	
		| Ipomoea loefgrenii Hoehne | Unresolved |  | IPNI |  | 
	
		| Ipomoea lonchophylla J.M. Black | Unresolved |  | TRO |  | 
	
		| Ipomoea longeramosa Choisy | Accepted |  | TRO |  | 
	
		| Ipomoea longicuspis Meisn. | Synonym |  | TRO |  | 
	
		| Ipomoea longiflora Humb. & Bonpl. ex Willd. | Synonym |  | TRO |  | 
	
		| Ipomoea longifolia Benth. | Accepted |  | TRO |  | 
	
		| Ipomoea longipedunculata (M. Martens & Galeotti) Hemsl. | Synonym |  | TRO |  | 
	
		| Ipomoea longipes Engl. | Unresolved |  | TRO |  | 
	
		| Ipomoea longiracemosa Choisy | Unresolved |  | TRO |  | 
	
		| Ipomoea longistaminea O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea longituba Hallier f. | Accepted |  | TRO |  | 
	
		| Ipomoea lophantha Hallier f. | Unresolved |  | IPNI |  | 
	
		| Ipomoea lorentzii Kuntze | Unresolved |  | TRO |  | 
	
		| Ipomoea lottiae J.A. McDonald | Accepted |  | TRO |  | 
	
		| Ipomoea loureiroi J.Presl | Unresolved |  | IPNI |  | 
	
		| Ipomoea lozani J.H.Painter | Unresolved |  | IPNI |  | 
	
		| Ipomoea lozani Painter ex House | Unresolved |  | IPNI |  | 
	
		| Ipomoea lozanii Painter | Accepted |  | TRO |  | 
	
		| Ipomoea lugardi N.E. Br. | Synonym |  | TRO |  | 
	
		| Ipomoea lugardi var. parviflora Rendle | Synonym |  | TRO |  | 
	
		| Ipomoea lukafuensis De Wild. | Synonym |  | TRO |  | 
	
		| Ipomoea lundii Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea lurida Hassl. | Unresolved |  | TRO |  | 
	
		| Ipomoea lutambensis Schulze-Menz | Synonym |  | TRO |  | 
	
		| Ipomoea lutea Hemsl. | Accepted |  | TRO |  | 
	
		| Ipomoea lutea f. rubra O'Donell | Synonym |  | TRO |  | 
	
		| Ipomoea luteola Jacq. | Synonym |  | TRO |  | 
	
		| Ipomoea luteoviridis Ekman & Leonard | Accepted |  | TRO |  | 
	
		| Ipomoea luxurians Moric. | Synonym |  | TRO |  | 
	
		| Ipomoea lyciifolia Merxm. | Unresolved |  | IPNI |  | 
	
		| Ipomoea macalusoi Mattei | Synonym |  | TRO |  | 
	
		| Ipomoea macdonaldii E. Carranza | Accepted |  | TRO |  | 
	
		| Ipomoea macedoi Hoehne | Accepted |  | TRO |  | 
	
		| Ipomoea macrantha Roem. & Schult. | Synonym |  | TRO |  | 
	
		| Ipomoea macrocalyx (Ruiz & Pav.) Choisy | Synonym |  | TRO |  | 
	
		| Ipomoea macrophylla Choisy | Unresolved |  | TRO |  | 
	
		| Ipomoea macropoda Bojer | Synonym |  | TRO |  | 
	
		| Ipomoea macrorhiza Michx. | Accepted |  | TRO |  | 
	
		| Ipomoea macrorhizos Roem. & Schult. | Unresolved |  | IPNI |  | 
	
		| Ipomoea macrosepala Brenan | Unresolved |  | TRO |  | 
	
		| Ipomoea macrosiphon Hallier f. | Unresolved |  | TRO |  | 
	
		| Ipomoea madagascariensis Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea madrensis S. Watson | Accepted |  | TRO |  | 
	
		| Ipomoea magnifica Hallier f. | Unresolved |  | IPNI |  | 
	
		| Ipomoea magniflora O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea magnifolia Rusby | Accepted |  | TRO |  | 
	
		| Ipomoea magnusiana Schinz | Unresolved |  | TRO |  | 
	
		| Ipomoea magnusiana var. eenii A. Meeuse | Unresolved |  | TRO |  | 
	
		| Ipomoea magnusiana var. magnusiana | Unresolved |  | TRO |  | 
	
		| Ipomoea mahonii C.H. Wright | Unresolved |  | TRO |  | 
	
		| Ipomoea mairetii Choisy | Accepted |  | TRO |  | 
	
		| Ipomoea malabarica Roem. & Schult. | Unresolved |  | IPNI |  | 
	
		| Ipomoea malpighipila O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea malpighipila var. malpighipila | Synonym |  | TRO |  | 
	
		| Ipomoea maltratana Standl. | Synonym |  | TRO |  | 
	
		| Ipomoea malvaeoides Meisn. | Accepted |  | TRO |  | 
	
		| Ipomoea malvaeoides f. apiculata Chodat & Hassl. | Synonym |  | TRO |  | 
	
		| Ipomoea malvaeoides var. integrifolia Chodat & Hassl. | Synonym |  | TRO |  | 
	
		| Ipomoea malvaeoides var. malvaeoides | Synonym |  | TRO |  | 
	
		| Ipomoea malvaeoides var. nitida (Griseb.) Hallier | Synonym |  | TRO |  | 
	
		| Ipomoea malvaeoides var. uliginosa Chodat & Hassl. | Synonym |  | TRO |  | 
	
		| Ipomoea malvaviscoides Meisn. | Accepted |  | TRO |  | 
	
		| Ipomoea malvifolia Baker | Synonym |  | TRO |  | 
	
		| Ipomoea mammosa Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea marabensis D.F. Austin & Secco | Accepted |  | TRO |  | 
	
		| Ipomoea maraginensis Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea maragniensis Choisy | Unresolved |  | TRO |  | 
	
		| Ipomoea marcellia Meisn. | Accepted |  | TRO |  | 
	
		| Ipomoea marginata (Desr.) Verdc. | Accepted |  | TRO |  | 
	
		| Ipomoea marginisepala O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea mariannensis Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea maritima R. Br. | Synonym |  | TRO |  | 
	
		| Ipomoea marlothii Engl. | Synonym |  | TRO |  | 
	
		| Ipomoea marmorata Britt. & Rendle | Unresolved |  | TRO |  | 
	
		| Ipomoea marshii Steyerm. | Unresolved |  | TRO |  | 
	
		| Ipomoea martii Meisn. | Unresolved |  | IPNI |  | 
	
		| Ipomoea martinicensis (Jacq.) G. Mey. | Synonym |  | TRO |  | 
	
		| Ipomoea martinii H. Lév. | Unresolved |  | TRO |  | 
	
		| Ipomoea martiusiana Steud. | Unresolved |  | IPNI |  | 
	
		| Ipomoea martreti A.Chev. | Unresolved |  | IPNI |  | 
	
		| Ipomoea massaiensis Pilg. | Unresolved |  | IPNI |  | 
	
		| Ipomoea mataxocarpa G.Don | Unresolved |  | IPNI |  | 
	
		| Ipomoea mathewsiana Kuntze | Accepted |  | TRO |  | 
	
		| Ipomoea matthioli Tausch ex Steud. | Unresolved |  | IPNI |  | 
	
		| Ipomoea mattogrossensis (Kuntze) K. Schum. | Synonym |  | TRO |  | 
	
		| Ipomoea maurandioides Meisn. | Accepted |  | TRO |  | 
	
		| Ipomoea mauritiana Jacq. | Accepted |  | TRO |  | 
	
		| Ipomoea maxima Don ex Sweet | Unresolved |  | TRO |  | 
	
		| Ipomoea maximiliani Meisn. | Synonym |  | TRO |  | 
	
		| Ipomoea maymyensis Lace | Unresolved |  | IPNI |  | 
	
		| Ipomoea maypurensis Spruce ex Hallier f. | Unresolved |  | IPNI |  | 
	
		| Ipomoea mcphersonii D.F. Austin | Accepted |  | TRO |  | 
	
		| Ipomoea mcvaughii McPherson | Accepted |  | TRO |  | 
	
		| Ipomoea mechoacan Nutt. | Unresolved |  | IPNI |  | 
	
		| Ipomoea mechoacana Rojas | Unresolved |  | IPNI |  | 
	
		| Ipomoea medians Cordem. | Unresolved |  | IPNI |  | 
	
		| Ipomoea medium (Choisy) Vatke | Accepted |  | TRO |  | 
	
		| Ipomoea megacarpa Brandegee | Synonym |  | TRO |  | 
	
		| Ipomoea megalochlamys Baker | Unresolved |  | IPNI |  | 
	
		| Ipomoea megapotamica Choisy | Accepted |  | TRO |  | 
	
		| Ipomoea melaena Lindl. | Unresolved |  | IPNI |  | 
	
		| Ipomoea melanosticta G. Don | Unresolved |  | TRO |  | 
	
		| Ipomoea melanotricha Brandegee | Synonym |  | TRO |  | 
	
		| Ipomoea mendesii Welw. | Unresolved |  | IPNI |  | 
	
		| Ipomoea menispermaceae Domin | Unresolved |  | TRO |  | 
	
		| Ipomoea merremioides A. H. Liogier | Unresolved |  | TRO |  | 
	
		| Ipomoea mesatlantica Andr. | Unresolved |  | IPNI |  | 
	
		| Ipomoea mesenterioides Hallier f. | Synonym |  | TRO |  | 
	
		| Ipomoea mestecensis House | Synonym |  | TRO |  | 
	
		| Ipomoea mestitlanica Choisy | Unresolved |  | TRO |  | 
	
		| Ipomoea mexicana A. Gray | Unresolved |  | TRO |  | 
	
		| Ipomoea meyeri (Spreng.) G. Don | Accepted |  | TRO |  | 
	
		| Ipomoea micans Garcke | Unresolved |  | IPNI |  | 
	
		| Ipomoea michauxii Sweet | Unresolved |  | IPNI |  | 
	
		| Ipomoea micrantha Hallier f. | Unresolved |  | TRO |  | 
	
		| Ipomoea microcalyx Schulze-Menz | Unresolved |  | TRO |  | 
	
		| Ipomoea microcephala Hallier f. | Unresolved |  | IPNI |  | 
	
		| Ipomoea microdactyla Griseb. | Accepted |  | TRO |  | 
	
		| Ipomoea microphylla Roth | Unresolved |  | TRO |  | 
	
		| Ipomoea microsepala Benth. | Accepted |  | TRO |  | 
	
		| Ipomoea microsticta Hallier f. | Synonym |  | TRO |  | 
	
		| Ipomoea milnei Verdc. | Unresolved |  | IPNI |  | 
	
		| Ipomoea mina Voss | Synonym |  | TRO |  | 
	
		| Ipomoea minuta R.E. Fr. | Accepted |  | TRO |  | 
	
		| Ipomoea minuta f. adiantifolia (Ooststr.) O'Donell | Synonym |  | TRO |  | 
	
		| Ipomoea minuta f. minuta | Synonym |  | TRO |  | 
	
		| Ipomoea minutiflora (M. Martens & Galeotti) House | Accepted |  | TRO |  | 
	
		| Ipomoea miquihuanensis J.A. McDonald | Accepted |  | TRO |  | 
	
		| Ipomoea mirandina (Pittier) O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea mitchellae Standl. | Synonym |  | TRO |  | 
	
		| Ipomoea modesta F.Muell. | Unresolved |  | IPNI |  | 
	
		| Ipomoea modesta Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea moeroensis Baker | Unresolved |  | IPNI |  | 
	
		| Ipomoea mojangensis Vatke | Synonym |  | TRO |  | 
	
		| Ipomoea molleri Gand. | Unresolved |  | IPNI |  | 
	
		| Ipomoea mollicoma Miq. | Synonym |  | TRO |  | 
	
		| Ipomoea mollis G. Don | Synonym |  | TRO |  | 
	
		| Ipomoea mollissima (Zoll.) Hallier f. | Synonym |  | TRO |  | 
	
		| Ipomoea mollissima var. glabrior (Miq.) Boerl. | Synonym |  | TRO |  | 
	
		| Ipomoea mombassana Vatke | Unresolved |  | TRO |  | 
	
		| Ipomoea monosperma Sprengel ex Choisy | Synonym |  | TRO |  | 
	
		| Ipomoea montana Moric. | Synonym |  | TRO |  | 
	
		| Ipomoea montecristina Hadač | Unresolved |  | TRO |  | 
	
		| Ipomoea montevidensis (Spreng.) G. Don | Synonym |  | TRO |  | 
	
		| Ipomoea monticola (Meisn.) O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea morelii Duchass. & Walp. | Synonym |  | TRO |  | 
	
		| Ipomoea morelli Duchass. & Walp. | Unresolved |  | IPNI |  | 
	
		| Ipomoea morongii Britton | Accepted |  | TRO |  | 
	
		| Ipomoea morsonii Baker | Unresolved |  | TRO |  | 
	
		| Ipomoea mucronata Schery | Synonym |  | TRO |  | 
	
		| Ipomoea muelleri Benth. | Unresolved |  | TRO |  | 
	
		| Ipomoea × multifida (Raf.) Shinners | Accepted |  | TRO |  | 
	
		| Ipomoea multiflora Mill. ex Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea multiflora Roem. & Schult. | Unresolved |  | IPNI |  | 
	
		| Ipomoea multiflora Roxb. | Unresolved |  | IPNI |  | 
	
		| Ipomoea multinervia Verdc. | Unresolved |  | IPNI |  | 
	
		| Ipomoea multisecta Welw. | Synonym |  | TRO |  | 
	
		| Ipomoea muricata (L.) Jacq. | Accepted |  | TRO |  | 
	
		| Ipomoea muricatisepala (Matuda) | Unresolved |  | IPNI |  | 
	
		| Ipomoea murucoides Roem. & Schult. | Accepted |  | TRO |  | 
	
		| Ipomoea mutabilis Ker Gawl. | Synonym |  | TRO |  | 
	
		| Ipomoea nana Collet & Hemsl. | Unresolved |  | IPNI |  | 
	
		| Ipomoea natans Dinter & Suess. | Synonym |  | TRO |  | 
	
		| Ipomoea nationis (Hook.) G. Nicholson | Accepted |  | TRO |  | 
	
		| Ipomoea nealleyi J.M. Coult. | Synonym |  | TRO |  | 
	
		| Ipomoea neallyi Coulter | Unresolved |  | IPNI |  | 
	
		| Ipomoea neei (Spreng.) O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea nelsonii Rose | Synonym |  | TRO |  | 
	
		| Ipomoea nematoloba Urb. | Accepted |  | TRO |  | 
	
		| Ipomoea nematophylla Urb. | Accepted |  | TRO |  | 
	
		| Ipomoea nemorosa G.Don | Unresolved |  | IPNI |  | 
	
		| Ipomoea nephrophylla Meisn. | Synonym |  | TRO |  | 
	
		| Ipomoea nephrosepala Chiov. | Unresolved |  | IPNI |  | 
	
		| Ipomoea nerifolia Gardner | Unresolved |  | IPNI |  | 
	
		| Ipomoea neurocephala Hallier f. | Accepted |  | TRO |  | 
	
		| Ipomoea nevisiensis G.Don | Unresolved |  | IPNI |  | 
	
		| Ipomoea newmannii Lodd. | Unresolved |  | IPNI |  | 
	
		| Ipomoea nicaraguensis (Donn. Sm.) House | Accepted |  | TRO |  | 
	
		| Ipomoea nicobarica Kurz | Unresolved |  | IPNI |  | 
	
		| Ipomoea nicoyana House | Synonym |  | TRO |  | 
	
		| Ipomoea nigricans Gardner | Unresolved |  | IPNI |  | 
	
		| Ipomoea nil (L.) Roth | Accepted |  | WCSP (in review) |  | 
	
		| Ipomoea nil var. setosa (Ker Gawl.) Boerl. | Synonym |  | WCSP (in review) |  | 
	
		| Ipomoea nitens Chodat & Hassl. | Unresolved |  | TRO |  | 
	
		| Ipomoea nitida Griseb. | Accepted |  | TRO |  | 
	
		| Ipomoea noctiflora Griff. | Unresolved |  | IPNI |  | 
	
		| Ipomoea noctiluca Herb. | Unresolved |  | IPNI |  | 
	
		| Ipomoea noctulifolia McPherson | Accepted |  | TRO |  | 
	
		| Ipomoea nuda N.E. Br. | Synonym |  | TRO |  | 
	
		| Ipomoea nuda Peter | Synonym |  | TRO |  | 
	
		| Ipomoea nutans Moc. & Sessé ex Choisy | Synonym |  | TRO |  | 
	
		| Ipomoea nyctaginea Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea nyctelea L. | Synonym |  | TRO |  | 
	
		| Ipomoea nyctylea Hill | Unresolved |  | IPNI |  | 
	
		| Ipomoea nyikensis Hallier f. | Unresolved |  | IPNI |  | 
	
		| Ipomoea nymphaefolia Blume | Synonym |  | TRO |  | 
	
		| Ipomoea nymphaeifolia Griseb. | Unresolved |  | IPNI |  | 
	
		| Ipomoea oaxacana Greenm. | Unresolved |  | TRO |  | 
	
		| Ipomoea oblonga Benth. | Unresolved |  | TRO |  | 
	
		| Ipomoea oblongata E. Mey. ex Choisy | Synonym |  | TRO |  | 
	
		| Ipomoea oblongifolia (Hassl.) O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea obscura (L.) Ker Gawl. | Accepted |  | TRO |  | 
	
		| Ipomoea obscura var. fragilis (Choisy) A. Meeuse | Synonym |  | TRO |  | 
	
		| Ipomoea obscura var. obscura | Synonym |  | TRO |  | 
	
		| Ipomoea obtusata Griseb. | Accepted |  | TRO |  | 
	
		| Ipomoea obtusiloba Meisn. | Synonym |  | TRO |  | 
	
		| Ipomoea obtusiloba var. tridens Meisn. | Synonym |  | TRO |  | 
	
		| Ipomoea ochracea (Lindl.) G. Don | Accepted |  | TRO |  | 
	
		| Ipomoea ochracea var. curtissii (House) Stearn | Synonym |  | TRO |  | 
	
		| Ipomoea ochroleuca Span. | Accepted |  | TRO |  | 
	
		| Ipomoea ocularis Bartl. | Unresolved |  | IPNI |  | 
	
		| Ipomoea oculata Huber | Unresolved |  | TRO |  | 
	
		| Ipomoea odontosepala Baker | Unresolved |  | IPNI |  | 
	
		| Ipomoea odorata Eastw. | Unresolved |  | IPNI |  | 
	
		| Ipomoea oenotherae Hallier f. | Accepted |  | TRO |  | 
	
		| Ipomoea oenotheriflora A.Chev. | Unresolved |  | IPNI |  | 
	
		| Ipomoea oenotheriflora A.Chev., Hutch. & Dalziel | Unresolved |  | IPNI |  | 
	
		| Ipomoea oenotheroides (L.f.) A.Meeuse & Welman | Unresolved |  | WCSP (in review) |  | 
	
		| Ipomoea officinalis Poit. ex Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea olanda C.B.Clarke | Unresolved |  | IPNI |  | 
	
		| Ipomoea oleracea Welw. | Synonym |  | TRO |  | 
	
		| Ipomoea oligantha Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea ommaneyi Rendle | Accepted |  | TRO |  | 
	
		| Ipomoea ommannei Rendle | Unresolved |  | TRO |  | 
	
		| Ipomoea oocarpa Benth. | Accepted |  | TRO |  | 
	
		| Ipomoea operculata Mart. | Unresolved |  | IPNI |  | 
	
		| Ipomoea operosa C.H.Wright | Unresolved |  | IPNI |  | 
	
		| Ipomoea ophiodes Standl. & Steyerm. | Accepted |  | TRO |  | 
	
		| Ipomoea ophthalmantha Hallier f. | Unresolved |  | IPNI |  | 
	
		| Ipomoea opulifolia Rusby | Accepted |  | TRO |  | 
	
		| Ipomoea oranensis O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea orbicularis Elliott | Synonym |  | TRO |  | 
	
		| Ipomoea oreophila House | Accepted |  | TRO |  | 
	
		| Ipomoea orizabensis (G. Pelletan) Ledeb. ex Steud. | Accepted |  | TRO |  | 
	
		| Ipomoea orizabensis var. collina (House) J.A. McDonald | Accepted |  | TRO |  | 
	
		| Ipomoea ornithopoda B.L. Rob. | Synonym |  | TRO |  | 
	
		| Ipomoea ortegae Poir. | Unresolved |  | TRO |  | 
	
		| Ipomoea osyrensis Roth | Synonym |  | TRO |  | 
	
		| Ipomoea otjikangensis Pilg. & Dinter | Synonym |  | TRO |  | 
	
		| Ipomoea ottoensis Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea ovalifolia Choisy | Synonym |  | TRO |  | 
	
		| Ipomoea ovata E. Mey. ex Rendle | Synonym |  | TRO |  | 
	
		| Ipomoea ovatolanceolata Thulin | Unresolved |  | IPNI |  | 
	
		| Ipomoea owariensis P. Beauv. | Synonym |  | TRO |  | 
	
		| Ipomoea oxyphylla Baker | Synonym |  | TRO |  | 
	
		| Ipomoea pachypus Pilg. | Synonym |  | TRO |  | 
	
		| Ipomoea padillae O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea painteri House | Synonym |  | TRO |  | 
	
		| Ipomoea pallida Santapau & V.Patel | Unresolved |  | IPNI |  | 
	
		| Ipomoea palmata Forssk. | Synonym |  | TRO |  | 
	
		| Ipomoea palmata var. gracillima Collett & Hemsl. | Synonym |  | TRO |  | 
	
		| Ipomoea palmatisecta Bojer ex Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea palmato-partita Benth. & Hook.f. | Unresolved |  | IPNI |  | 
	
		| Ipomoea palmato-pinnata Benth. & Hook.f. | Unresolved |  | IPNI |  | 
	
		| Ipomoea palmeri S. Watson | Synonym |  | TRO |  | 
	
		| Ipomoea palmeri Hallier | Synonym |  | TRO |  | 
	
		| Ipomoea palmeri var. platyphylla Fernald | Synonym |  | TRO |  | 
	
		| Ipomoea paludosa O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea paludosa var. paludosa | Synonym |  | TRO |  | 
	
		| Ipomoea paludosa var. uliginosa (Chodat & Hassl.) O'Donell | Synonym |  | TRO |  | 
	
		| Ipomoea palustris (Urb.) Urb. | Synonym |  | TRO |  | 
	
		| Ipomoea pampeana P.P.A.Ferreira & Miotto | Unresolved |  | WCSP (in review) |  | 
	
		| Ipomoea pandurata (L.) G. Mey. | Accepted |  | TRO |  | 
	
		| Ipomoea pandurifolia E.Mey. | Unresolved |  | IPNI |  | 
	
		| Ipomoea panduriformis Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea paniculata Burm. f. | Synonym |  | TRO |  | 
	
		| Ipomoea paniculatus R. Br. | Unresolved |  | TRO |  | 
	
		| Ipomoea pannosa R.Br. | Unresolved |  | IPNI |  | 
	
		| Ipomoea paolii Chiov. | Unresolved |  | TRO |  | 
	
		| Ipomoea paparin Poir. | Unresolved |  | TRO |  | 
	
		| Ipomoea papilio Hallier f. | Accepted |  | TRO |  | 
	
		| Ipomoea papillosa Bertol. | Unresolved |  | IPNI |  | 
	
		| Ipomoea papirin Ruiz & Pav. | Unresolved |  | IPNI |  | 
	
		| Ipomoea papiru Ruiz & Pav. | Synonym |  | TRO |  | 
	
		| Ipomoea papiru var. subtriloba (Ruiz & Pav.) Pers. | Synonym |  | TRO |  | 
	
		| Ipomoea paposana Phil. | Synonym |  | TRO |  | 
	
		| Ipomoea paraensis Peter | Unresolved |  | IPNI |  | 
	
		| Ipomoea paraguariensis Peter | Accepted |  | TRO |  | 
	
		| Ipomoea paranaenensis Hoehne | Unresolved |  | IPNI |  | 
	
		| Ipomoea paranaensis Hassl. | Unresolved |  | IPNI |  | 
	
		| Ipomoea paranaensis Hoehne | Unresolved |  | IPNI |  | 
	
		| Ipomoea parasitica (Kunth) G. Don | Accepted |  | TRO |  | 
	
		| Ipomoea pareiraefolia G. Don | Unresolved |  | TRO |  | 
	
		| Ipomoea parkeri Choisy | Synonym |  | TRO |  | 
	
		| Ipomoea parkeri var. subsericea Meisn. | Synonym |  | TRO |  | 
	
		| Ipomoea parviflora Vahl | Unresolved |  | TRO |  | 
	
		| Ipomoea passifloroides House | Accepted |  | TRO |  | 
	
		| Ipomoea patens (A. Gray) House | Synonym |  | TRO |  | 
	
		| Ipomoea patula Choisy | Accepted |  | TRO |  | 
	
		| Ipomoea patula var. monticola Meisn. | Synonym |  | TRO |  | 
	
		| Ipomoea pauciflora M. Martens & Galeotti | Accepted |  | TRO |  | 
	
		| Ipomoea pauciflora subsp. pauciflora | Synonym |  | TRO |  | 
	
		| Ipomoea pauciflora subsp. vargasiana (O'Donell) McPherson | Accepted |  | TRO |  | 
	
		| Ipomoea paulistana O'Donell | Synonym |  | TRO |  | 
	
		| Ipomoea paulitschkei Schweinf. & Volkens | Unresolved |  | IPNI |  | 
	
		| Ipomoea pavonii Choisy | Synonym |  | TRO |  | 
	
		| Ipomoea pearceana Kuntze | Accepted |  | TRO |  | 
	
		| Ipomoea peckolti Meisn. | Synonym |  | TRO |  | 
	
		| Ipomoea pedata Poiteau ex Choisy | Unresolved |  | TRO |  | 
	
		| Ipomoea pedatisecta M. Martens & Galeotti | Synonym |  | TRO |  | 
	
		| Ipomoea pedicellaris Benth. | Accepted |  | TRO |  | 
	
		| Ipomoea peduncularis Bertol. | Synonym |  | TRO |  | 
	
		| Ipomoea pedunculosa Chiov. | Unresolved |  | IPNI |  | 
	
		| Ipomoea pellita Hallier f. | Accepted |  | TRO |  | 
	
		| Ipomoea peltata (L.) Choisy | Synonym |  | TRO |  | 
	
		| Ipomoea pendula (Silva Manso) Stellfeld | Accepted |  | TRO |  | 
	
		| Ipomoea peninsularis Brandegee | Synonym |  | TRO |  | 
	
		| Ipomoea pentadactyla Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea pentadactylis Choisy | Synonym |  | TRO |  | 
	
		| Ipomoea pentagona Sweet | Unresolved |  | IPNI |  | 
	
		| Ipomoea pentaloba Roem. & Schult. | Unresolved |  | IPNI |  | 
	
		| Ipomoea pentaphylla Cav. | Synonym |  | TRO |  | 
	
		| Ipomoea peredoi O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea perfoliata G.Don | Unresolved |  | IPNI |  | 
	
		| Ipomoea perichnoa Urb. | Accepted |  | TRO |  | 
	
		| Ipomoea perlonga B.L. Rob. | Synonym |  | TRO |  | 
	
		| Ipomoea perpartita McPherson | Accepted |  | TRO |  | 
	
		| Ipomoea perplexa L.O. Williams | Synonym |  | TRO |  | 
	
		| Ipomoea perrieri Deroin | Accepted |  | TRO |  | 
	
		| Ipomoea perringiana Dammer | Unresolved |  | IPNI |  | 
	
		| Ipomoea perrottetii Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea perryana Duchass. & Walp. | Synonym |  | TRO |  | 
	
		| Ipomoea peruviana O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea pes-caprae (L.) R. Br. | Accepted |  | TRO |  | 
	
		| Ipomoea pes-caprae subsp. brasiliensis (L.) Ooststr. | Accepted |  | TRO |  | 
	
		| Ipomoea pes-caprae var. brasiliensis (L.) A. St.-Hil. | Synonym |  | TRO |  | 
	
		| Ipomoea pes-caprae var. emarginata Hallier f. | Synonym |  | TRO |  | 
	
		| Ipomoea pes-caprae var. heterosepala Chodat & Hassl. | Synonym |  | TRO |  | 
	
		| Ipomoea pes-tigridis L. | Accepted |  | TRO |  | 
	
		| Ipomoea pes-tigridis var. africana Hallier f. | Synonym |  | TRO |  | 
	
		| Ipomoea pes-tigridis var. pes-tigridis | Synonym |  | TRO |  | 
	
		| Ipomoea petaloidea Choisy | Synonym |  | TRO |  | 
	
		| Ipomoea petaloidea var. pauciflora C.B. Clarke | Synonym |  | TRO |  | 
	
		| Ipomoea petersiana Klotzsch | Unresolved |  | IPNI |  | 
	
		| Ipomoea petiolaris G. Don | Unresolved |  | TRO |  | 
	
		| Ipomoea petiolulata Schulze-Menz | Unresolved |  | IPNI |  | 
	
		| Ipomoea petitiana Lejoly & Lisowski | Unresolved |  | IPNI |  | 
	
		| Ipomoea petrophila House | Accepted |  | TRO |  | 
	
		| Ipomoea petunioides Baker | Synonym |  | TRO |  | 
	
		| Ipomoea pharbitiformis Baker | Unresolved |  | TRO |  | 
	
		| Ipomoea philadelphica Hort. ex Roem. & Schult. | Unresolved |  | IPNI |  | 
	
		| Ipomoea philippinensis Choisy | Synonym |  | TRO |  | 
	
		| Ipomoea philipsonii O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea philomega (Vell.) House | Accepted |  | TRO |  | 
	
		| Ipomoea phoenicea (Roxb.) Choisy | Synonym |  | TRO |  | 
	
		| Ipomoea phoenicea Roxb. | Synonym |  | TRO |  | 
	
		| Ipomoea phylloneura Baker | Synonym |  | TRO |  | 
	
		| Ipomoea phyllosepala Baker | Unresolved |  | IPNI |  | 
	
		| Ipomoea phymatodes Spreng. | Unresolved |  | IPNI |  | 
	
		| Ipomoea physianthifolia Regel | Unresolved |  | IPNI |  | 
	
		| Ipomoea pickelii Hoehne | Unresolved |  | IPNI |  | 
	
		| Ipomoea pierrei Gagnep. | Synonym |  | TRO |  | 
	
		| Ipomoea pileata Roxb. | Accepted |  | TRO |  | 
	
		| Ipomoea pilosa Cav. | Synonym |  | TRO |  | 
	
		| Ipomoea pilosa Sweet | Synonym |  | TRO |  | 
	
		| Ipomoea pilossissima M. Martens & Galeotti | Unresolved |  | TRO |  | 
	
		| Ipomoea pinifolia Meisn. | Accepted |  | TRO |  | 
	
		| Ipomoea pinifolioides Arechav. | Unresolved |  | IPNI |  | 
	
		| Ipomoea pinnata Hochst. ex Choisy | Synonym |  | TRO |  | 
	
		| Ipomoea pinnatifida (Kunth) G. Don | Synonym |  | TRO |  | 
	
		| Ipomoea pinosia A. H. Liogier | Synonym |  | TRO |  | 
	
		| Ipomoea pintoi O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea piresii O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea pitoniana Urb. | Unresolved |  | TRO |  | 
	
		| Ipomoea pittieri O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea piurensis O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea piurensis f. rosea O'Donell | Synonym |  | TRO |  | 
	
		| Ipomoea plantaginea Hallier f. | Synonym |  | TRO |  | 
	
		| Ipomoea platanifolia (Vahl) Roem. & Schult. | Accepted |  | TRO |  | 
	
		| Ipomoea platensis Ker Gawl. | Accepted |  | TRO |  | 
	
		| Ipomoea platyclada Urb. | Unresolved |  | TRO |  | 
	
		| Ipomoea plebeia R. Br. | Synonym |  | TRO |  | 
	
		| Ipomoea plebeia subsp. africana A. Meeuse | Unresolved |  | TRO |  | 
	
		| Ipomoea plicata Urb. | Unresolved |  | TRO |  | 
	
		| Ipomoea plumieriana House | Unresolved |  | TRO |  | 
	
		| Ipomoea plummerae A. Gray | Accepted |  | TRO |  | 
	
		| Ipomoea plummerae f. adiantifolia Ooststr. | Synonym |  | TRO |  | 
	
		| Ipomoea plummerae var. cuneifolia J.F. Macbr. | Accepted |  | TRO |  | 
	
		| Ipomoea plummerae var. plummerae | Synonym |  | TRO |  | 
	
		| Ipomoea plummerae f. rhombifolia Ooststr. | Synonym |  | TRO |  | 
	
		| Ipomoea pogonantha Thulin | Unresolved |  | IPNI |  | 
	
		| Ipomoea pohlii Choisy | Accepted |  | TRO |  | 
	
		| Ipomoea polhillii Verdc. | Unresolved |  | IPNI |  | 
	
		| Ipomoea polpha R.W. Johnson | Unresolved |  | TRO |  | 
	
		| Ipomoea polyantha Miq. | Synonym |  | TRO |  | 
	
		| Ipomoea polyanthes Roem. & Schult. | Synonym |  | TRO |  | 
	
		| Ipomoea polycarpa (Kunth) G. Don | Synonym |  | TRO |  | 
	
		| Ipomoea polygonoides Schweinf. | Unresolved |  | IPNI |  | 
	
		| Ipomoea polymorpha Roem. & Schult. | Accepted |  | TRO |  | 
	
		| Ipomoea polymorpha f. argentea Hassl. | Synonym |  | TRO |  | 
	
		| Ipomoea polymorpha f. canescens Hassl. | Synonym |  | TRO |  | 
	
		| Ipomoea polymorpha var. discolor Hassl. | Synonym |  | TRO |  | 
	
		| Ipomoea polymorpha var. glabra Griseb. | Synonym |  | TRO |  | 
	
		| Ipomoea polyrrhizos Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea polytricha Sweet | Unresolved |  | IPNI |  | 
	
		| Ipomoea polytricha Baker | Unresolved |  | IPNI |  | 
	
		| Ipomoea pomacea Roxb. ex Steud. | Unresolved |  | IPNI |  | 
	
		| Ipomoea popahensis Collett & Hemsl. | Unresolved |  | IPNI |  | 
	
		| Ipomoea populifolia Hallier f. | Unresolved |  | IPNI |  | 
	
		| Ipomoea populina House | Accepted |  | TRO |  | 
	
		| Ipomoea poranoides C.B.Clarke in Hook.f. | Unresolved |  | IPNI |  | 
	
		| Ipomoea porrecta Rendle & Britten | Unresolved |  | IPNI |  | 
	
		| Ipomoea portobellensis Beurl. | Synonym |  | TRO |  | 
	
		| Ipomoea portoricensis (Spreng.) G. Don | Synonym |  | TRO |  | 
	
		| Ipomoea potentilloides Meisn. | Synonym |  | TRO |  | 
	
		| Ipomoea praecana House | Accepted |  | TRO |  | 
	
		| Ipomoea praecox C. Wright | Unresolved |  | TRO |  | 
	
		| Ipomoea praematura Eckenw. | Accepted |  | TRO |  | 
	
		| Ipomoea praetermissa Rendle | Synonym |  | TRO |  | 
	
		| Ipomoea primuliflora G.Don | Unresolved |  | IPNI |  | 
	
		| Ipomoea pringlei A. Gray | Synonym |  | TRO |  | 
	
		| Ipomoea pringsheimiana Rendle | Unresolved |  | IPNI |  | 
	
		| Ipomoea prismatosyphon Welw. | Unresolved |  | TRO |  | 
	
		| Ipomoea procumbens Mart. & Choisy | Accepted |  | TRO |  | 
	
		| Ipomoea procurrens Meisn. | Accepted |  | TRO |  | 
	
		| Ipomoea prostrata Meisn. | Unresolved |  | TRO |  | 
	
		| Ipomoea protea Rendle & Britten | Unresolved |  | IPNI |  | 
	
		| Ipomoea proxima M. Martens & Galeotti | Accepted |  | TRO |  | 
	
		| Ipomoea proximum Hemsl. | Unresolved |  | IPNI |  | 
	
		| Ipomoea pruinosa McPherson | Accepted |  | TRO |  | 
	
		| Ipomoea prunetii Perr. ex Steud. | Unresolved |  | IPNI |  | 
	
		| Ipomoea pseudocalystegia Hassl. | Unresolved |  | TRO |  | 
	
		| Ipomoea pseudolinum Pittier | Synonym |  | TRO |  | 
	
		| Ipomoea pseudomalvaeoides Chodat & Hassl. | Unresolved |  | TRO |  | 
	
		| Ipomoea pseudomarginata Deroin | Accepted |  | TRO |  | 
	
		| Ipomoea pseudomina K. Schum. | Accepted |  | TRO |  | 
	
		| Ipomoea pseudomuricata Bernh. ex Link | Unresolved |  | IPNI |  | 
	
		| Ipomoea pseudoprostrata Hassl. | Unresolved |  | IPNI |  | 
	
		| Ipomoea pseudoracemosa McPherson | Accepted |  | TRO |  | 
	
		| Ipomoea psilophylla Steud. | Unresolved |  | IPNI |  | 
	
		| Ipomoea pterocarpa G.Don | Unresolved |  | IPNI |  | 
	
		| Ipomoea pterodes Choisy | Synonym |  | TRO |  | 
	
		| Ipomoea pterygocaulos Choisy | Synonym |  | TRO |  | 
	
		| Ipomoea pubescens Lam. | Accepted |  | TRO |  | 
	
		| Ipomoea pudibunda (Lindl.) G. Don | Accepted |  | TRO |  | 
	
		| Ipomoea pulchella Roth | Accepted |  | TRO |  | 
	
		| Ipomoea pulchella var. lineariloba Hassl. | Synonym |  | TRO |  | 
	
		| Ipomoea pulcherrima Ooststr. | Accepted |  | TRO |  | 
	
		| Ipomoea pulchra Blume | Synonym |  | TRO |  | 
	
		| Ipomoea pulneyensis Bedd. | Unresolved |  | IPNI |  | 
	
		| Ipomoea pumila Span. | Synonym |  | TRO |  | 
	
		| Ipomoea punctata C. Wright | Unresolved |  | TRO |  | 
	
		| Ipomoea punicea Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea punticulata Benth. | Accepted |  | TRO |  | 
	
		| Ipomoea purga (Wender.) Hayne | Accepted |  | TRO |  | 
	
		| Ipomoea purpurea (L.) Roth | Accepted |  | TRO |  | 
	
		| Ipomoea purpurea var. diversifolia (Lindl.) O'Donell | Synonym |  | TRO |  | 
	
		| Ipomoea purpurea var. purpurea | Synonym |  | TRO |  | 
	
		| Ipomoea purpusii House | Synonym |  | TRO |  | 
	
		| Ipomoea purshii G.Don in Sweet | Unresolved |  | IPNI |  | 
	
		| Ipomoea pusilla Brandegee | Synonym |  | TRO |  | 
	
		| Ipomoea pyramidalis Hallier f. | Unresolved |  | IPNI |  | 
	
		| Ipomoea pyrenea Taub. | Unresolved |  | TRO |  | 
	
		| Ipomoea pyrophila A. Chev. | Unresolved |  | TRO |  | 
	
		| Ipomoea quadrangularis Bojer ex Choisy | Synonym |  | TRO |  | 
	
		| Ipomoea quamoclit L. | Accepted |  | TRO |  | 
	
		| Ipomoea quesadana Standl. | Synonym |  | TRO |  | 
	
		| Ipomoea quinata R. Br. | Synonym |  | TRO |  | 
	
		| Ipomoea quinquefolia L. | Synonym |  | TRO |  | 
	
		| Ipomoea quinquefolia var. pubescens Baker | Synonym |  | TRO |  | 
	
		| Ipomoea quinqueloba Willd. ex Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea quinqueloba Roem. & Schult. | Unresolved |  | IPNI |  | 
	
		| Ipomoea quinqueloba Desf. | Unresolved |  | IPNI |  | 
	
		| Ipomoea quinqueloba Sess | Unresolved |  | IPNI |  | 
	
		| Ipomoea quinquepartita Roem. & Schult. | Unresolved |  | IPNI |  | 
	
		| Ipomoea racemigera F. Muell. | Unresolved |  | TRO |  | 
	
		| Ipomoea racemosa Poir. | Synonym |  | TRO |  | 
	
		| Ipomoea radiatifolia Kellogg | Unresolved |  | IPNI |  | 
	
		| Ipomoea radicans Blume | Synonym |  | TRO |  | 
	
		| Ipomoea radicans Bertero ex Choisy | Synonym |  | TRO |  | 
	
		| Ipomoea ramboi O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea ramonii Choisy | Synonym |  | TRO |  | 
	
		| Ipomoea ramosissima (Poir.) Choisy | Accepted |  | TRO |  | 
	
		| Ipomoea ramosissima f. rosea (Hallier) O'Donell | Synonym |  | TRO |  | 
	
		| Ipomoea ramosissima var. rosea Hallier | Synonym |  | TRO |  | 
	
		| Ipomoea randii Rendle | Synonym |  | TRO |  | 
	
		| Ipomoea recta De Wild. | Unresolved |  | IPNI |  | 
	
		| Ipomoea reflexa Span. | Unresolved |  | IPNI |  | 
	
		| Ipomoea reflexisepala Lejoly & Lisowski | Unresolved |  | IPNI |  | 
	
		| Ipomoea regnellii Meisn. | Accepted |  | TRO |  | 
	
		| Ipomoea reidellii C.F.W. Meissn. | Synonym |  | TRO |  | 
	
		| Ipomoea reinwardtiana Blume | Unresolved |  | IPNI |  | 
	
		| Ipomoea reniformis (Roxb.) Choisy | Synonym |  | TRO |  | 
	
		| Ipomoea repanda Jacq. | Accepted |  | TRO |  | 
	
		| Ipomoea repandula Baker | Synonym |  | TRO |  | 
	
		| Ipomoea repens (L.) Lam. | Accepted |  | TRO |  | 
	
		| Ipomoea repens Roth | Synonym |  | TRO |  | 
	
		| Ipomoea reptans Poir. | Synonym |  | TRO |  | 
	
		| Ipomoea reticulata O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea retropilosa (Pittier) D.F. Austin | Accepted |  | TRO |  | 
	
		| Ipomoea rhodesiana Rendle | Synonym |  | TRO |  | 
	
		| Ipomoea rhodocalyx A. Gray | Synonym |  | TRO |  | 
	
		| Ipomoea rhomboidea House | Accepted |  | TRO |  | 
	
		| Ipomoea rhyncorhiza Dalzell | Unresolved |  | IPNI |  | 
	
		| Ipomoea richardsiae Verdc. | Unresolved |  | IPNI |  | 
	
		| Ipomoea riedeliana Oliv. | Unresolved |  | IPNI |  | 
	
		| Ipomoea riedelii Meisn. | Synonym |  | TRO |  | 
	
		| Ipomoea riograndensis P.P.A.Ferreira & Miotto | Unresolved |  | WCSP (in review) |  | 
	
		| Ipomoea riparia G. Don | Synonym |  | TRO |  | 
	
		| Ipomoea riparum Standl. & L.O. Williams | Accepted |  | TRO |  | 
	
		| Ipomoea robbrechtii Lejoly & Lisowski | Unresolved |  | IPNI |  | 
	
		| Ipomoea robertsiana Rendle | Synonym |  | TRO |  | 
	
		| Ipomoea robertsii Hook.f. | Unresolved |  | IPNI |  | 
	
		| Ipomoea robinsonii House | Accepted |  | TRO |  | 
	
		| Ipomoea robusta Urb. | Accepted |  | TRO |  | 
	
		| Ipomoea robynsiana Lejoly & Lisowski | Unresolved |  | IPNI |  | 
	
		| Ipomoea rochai Hoehne | Unresolved |  | IPNI |  | 
	
		| Ipomoea rogeri Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea rojasii Hassl. | Accepted |  | TRO |  | 
	
		| Ipomoea rondoniae Hoehne | Unresolved |  | IPNI |  | 
	
		| Ipomoea rosea Choisy | Accepted |  | TRO |  | 
	
		| Ipomoea rosea var. pluripartita Hassl. | Synonym |  | TRO |  | 
	
		| Ipomoea roseana House | Synonym |  | TRO |  | 
	
		| Ipomoea rostrata Peter | Synonym |  | TRO |  | 
	
		| Ipomoea rothii Roem. & Schult. | Unresolved |  | IPNI |  | 
	
		| Ipomoea rotundata Verdc. | Unresolved |  | IPNI |  | 
	
		| Ipomoea rotundifolia (Schumach. & Thonn.) G. Don | Accepted |  | TRO |  | 
	
		| Ipomoea rotundisepala Hayata | Synonym |  | TRO |  | 
	
		| Ipomoea roxburghii Steud. | Unresolved |  | IPNI |  | 
	
		| Ipomoea roxburghii Sweet | Unresolved |  | IPNI |  | 
	
		| Ipomoea rubella House | Accepted |  | TRO |  | 
	
		| Ipomoea rubens Choisy | Accepted |  | TRO |  | 
	
		| Ipomoea ruber Millsp. | Unresolved |  | IPNI |  | 
	
		| Ipomoea rubra (Vahl) Millsp. | Synonym |  | TRO |  | 
	
		| Ipomoea rubra var. albo-flavida Urb. | Synonym |  | TRO |  | 
	
		| Ipomoea rubra var. palustris Urb. | Synonym |  | TRO |  | 
	
		| Ipomoea rubriflora O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea rubrinervia Goebel | Unresolved |  | TRO |  | 
	
		| Ipomoea rubro-viridis Baker | Synonym |  | TRO |  | 
	
		| Ipomoea rubrocaerulea Hook. | Synonym |  | TRO |  | 
	
		| Ipomoea rubrocincta Urb. | Unresolved |  | TRO |  | 
	
		| Ipomoea ruderaria (Kunth) G. Don | Synonym |  | TRO |  | 
	
		| Ipomoea rudolphii Roem. & Schult. | Synonym |  | TRO |  | 
	
		| Ipomoea rufescens Walp. | Unresolved |  | IPNI |  | 
	
		| Ipomoea rugosa Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea rumicifolia Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea rumphii Miq. | Unresolved |  | IPNI |  | 
	
		| Ipomoea rupestris Sim.-Bianch. & Pirani | Unresolved |  | IPNI |  | 
	
		| Ipomoea rupicola House | Accepted |  | TRO |  | 
	
		| Ipomoea ruyssenii A. Chev. | Synonym |  | TRO |  | 
	
		| Ipomoea rzedowskii E. Carranza, Zamudio & Murguia | Accepted |  | TRO |  | 
	
		| Ipomoea sabulosa House | Synonym |  | TRO |  | 
	
		| Ipomoea sabulosa var. hirtella House | Synonym |  | TRO |  | 
	
		| Ipomoea sabulosa var. mollicella House | Synonym |  | TRO |  | 
	
		| Ipomoea saccata Hallier f. | Synonym |  | TRO |  | 
	
		| Ipomoea sagittaeformis Cordem. | Unresolved |  | IPNI |  | 
	
		| Ipomoea sagittata Poir. | Accepted |  | TRO |  | 
	
		| Ipomoea sagittifer (Kunth) G. Don | Synonym |  | TRO |  | 
	
		| Ipomoea sagittifolia Hochr. | Synonym |  | TRO |  | 
	
		| Ipomoea sagittoides Courchet & Gagnep. | Unresolved |  | IPNI |  | 
	
		| Ipomoea sagittula House | Synonym |  | TRO |  | 
	
		| Ipomoea saintronanensis R.W. Johnson | Unresolved |  | TRO |  | 
	
		| Ipomoea salaziana Cordem. | Unresolved |  | IPNI |  | 
	
		| Ipomoea salicifolia Herb.Madr. ex Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea salicifolia Desr. ex Steud. | Unresolved |  | IPNI |  | 
	
		| Ipomoea salicifolia Roxb. | Unresolved |  | IPNI |  | 
	
		| Ipomoea salsettensis Santapau & V.Patel | Unresolved |  | IPNI |  | 
	
		| Ipomoea saltiana Rendle | Unresolved |  | IPNI |  | 
	
		| Ipomoea salzmannii Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea samanensis Urb. | Unresolved |  | TRO |  | 
	
		| Ipomoea sampaionis Herter | Unresolved |  | IPNI |  | 
	
		| Ipomoea sampaionis W.Herter ex A.Samp. | Unresolved |  | IPNI |  | 
	
		| Ipomoea sanguinea Vahl | Synonym |  | TRO |  | 
	
		| Ipomoea santacruzensis O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea santae-rosae Standl. & Steyerm. | Synonym |  | TRO |  | 
	
		| Ipomoea santillanii O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea saopaulista O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea saopaulistana O'Donell | Unresolved |  | IPNI |  | 
	
		| Ipomoea sarmentacea Rendle | Synonym |  | TRO |  | 
	
		| Ipomoea saundersiana Baker | Unresolved |  | IPNI |  | 
	
		| Ipomoea sawyeri D.F. Austin | Accepted |  | TRO |  | 
	
		| Ipomoea saxicola Proctor | Unresolved |  | TRO |  | 
	
		| Ipomoea saxorum Standl. & Steyerm. | Synonym |  | TRO |  | 
	
		| Ipomoea scabra Forssk. | Synonym |  | WCSP (in review) |  | 
	
		| Ipomoea scabrida Roem. & Schult. | Unresolved |  | IPNI |  | 
	
		| Ipomoea schaffneri S. Watson | Accepted |  | TRO |  | 
	
		| Ipomoea schaijesii Lejoly & Lisowski | Unresolved |  | IPNI |  | 
	
		| Ipomoea schiedeana Zucc. | Synonym |  | TRO |  | 
	
		| Ipomoea schizoloma Kunze | Unresolved |  | IPNI |  | 
	
		| Ipomoea schlechtendalii Vis. | Unresolved |  | IPNI |  | 
	
		| Ipomoea schomburgkii Choisy | Accepted |  | TRO |  | 
	
		| Ipomoea schrankii Steud. | Unresolved |  | IPNI |  | 
	
		| Ipomoea schrenkiana Peter | Unresolved |  | IPNI |  | 
	
		| Ipomoea schultesii Weinm. ex Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea schulziana O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea scopulorum Brandegee | Accepted |  | TRO |  | 
	
		| Ipomoea scotellii Rendle | Unresolved |  | IPNI |  | 
	
		| Ipomoea scrobiculata G.Don | Unresolved |  | IPNI |  | 
	
		| Ipomoea seaania Felger & D.F. Austin | Accepted |  | TRO |  | 
	
		| Ipomoea sectifolia Shinners | Accepted |  | TRO |  | 
	
		| Ipomoea secunda G. Don | Synonym |  | TRO |  | 
	
		| Ipomoea seducta House | Accepted |  | TRO |  | 
	
		| Ipomoea seineri Pilg. | Unresolved |  | IPNI |  | 
	
		| Ipomoea seleri Millsp. | Synonym |  | TRO |  | 
	
		| Ipomoea selleana Urb. | Accepted |  | TRO |  | 
	
		| Ipomoea selloi Meisn. | Synonym |  | TRO |  | 
	
		| Ipomoea sellowii Penny ex G.Don | Unresolved |  | IPNI |  | 
	
		| Ipomoea semidigyna Sweet ex Steud. | Unresolved |  | IPNI |  | 
	
		| Ipomoea semisagitta Griseb. ex Peter | Unresolved |  | IPNI |  | 
	
		| Ipomoea semisecta Merxm. | Unresolved |  | TRO |  | 
	
		| Ipomoea senegalensi Lam. | Synonym |  | TRO |  | 
	
		| Ipomoea senegambiae Choisy | Synonym |  | TRO |  | 
	
		| Ipomoea senegambica A.Chev. | Unresolved |  | IPNI |  | 
	
		| Ipomoea sepacuitensis Donn. Sm. | Accepted |  | TRO |  | 
	
		| Ipomoea sepiaria Koenig ex Roxb. | Synonym |  | TRO |  | 
	
		| Ipomoea septenata Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea sericantha Miq. | Synonym |  | TRO |  | 
	
		| Ipomoea sericea (L.) Blume | Accepted |  | TRO |  | 
	
		| Ipomoea sericophylla Meisn. | Accepted |  | TRO |  | 
	
		| Ipomoea serotina (DC.) Roem. & Schult. | Synonym |  | TRO |  | 
	
		| Ipomoea serpens Meisn. | Unresolved |  | TRO |  | 
	
		| Ipomoea serpens var. albiflora Hallier f. | Synonym |  | TRO |  | 
	
		| Ipomoea serpens f. crassifolia Chodat & Hassl. | Synonym |  | TRO |  | 
	
		| Ipomoea serpens var. subtomentosa Chodat & Hassl. | Synonym |  | TRO |  | 
	
		| Ipomoea serpyllifolia (Kunth) G. Don | Accepted |  | TRO |  | 
	
		| Ipomoea serrata Choisy | Synonym |  | TRO |  | 
	
		| Ipomoea serrulifera Standl. & L.O. Williams | Unresolved |  | TRO |  | 
	
		| Ipomoea sescossiana Baill. | Accepted |  | TRO |  | 
	
		| Ipomoea sessiliflora Roth | Synonym |  | TRO |  | 
	
		| Ipomoea sessilis L.O. Williams | Synonym |  | TRO |  | 
	
		| Ipomoea setifera Poir. | Accepted |  | TRO |  | 
	
		| Ipomoea setifera var. fimbriosepala (Choisy) Fosberg | Synonym |  | TRO |  | 
	
		| Ipomoea setosa Ker Gawl. | Synonym |  | WCSP (in review) |  | 
	
		| Ipomoea setosa var. campanulata (Hallier f.) House | Synonym |  | TRO |  | 
	
		| Ipomoea setosa var. pavonii (Choisy) House | Synonym |  | TRO |  | 
	
		| Ipomoea setulosa Zoll. & Moritzi | Unresolved |  | IPNI |  | 
	
		| Ipomoea shinnersii D.F.Austin | Unresolved |  | IPNI |  | 
	
		| Ipomoea shinnersii var. woronovii (Standl.) D.F. Austin | Synonym |  | TRO |  | 
	
		| Ipomoea shirambensis Baker | Accepted |  | TRO |  | 
	
		| Ipomoea shirensis Oliv. | Synonym |  | TRO |  | 
	
		| Ipomoea shumardi Torr. | Unresolved |  | TRO |  | 
	
		| Ipomoea shumardiana (Torr.) Shinners | Accepted |  | TRO |  | 
	
		| Ipomoea shupangensis Baker | Accepted |  | TRO |  | 
	
		| Ipomoea siamensis Craib | Unresolved |  | IPNI |  | 
	
		| Ipomoea sibirica (L.) Pers. | Synonym |  | TRO |  | 
	
		| Ipomoea sidaefolia (Kunth) Sweet | Synonym |  | TRO |  | 
	
		| Ipomoea sidamensis Thulin | Unresolved |  | IPNI |  | 
	
		| Ipomoea sidifolia Kunth | Unresolved |  | IPNI |  | 
	
		| Ipomoea sidifolia Schrad. | Unresolved |  | IPNI |  | 
	
		| Ipomoea sidifolia Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea signata House | Synonym |  | TRO |  | 
	
		| Ipomoea siltepecana Matuda | Accepted |  | TRO |  | 
	
		| Ipomoea silvana Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea silvestris Brandegee | Synonym |  | TRO |  | 
	
		| Ipomoea silvicola House | Accepted |  | TRO |  | 
	
		| Ipomoea simonsiana Rendle | Accepted |  | TRO |  | 
	
		| Ipomoea simplex auct. non Thunb. | Synonym |  | TRO |  | 
	
		| Ipomoea simplex Thunb. | Accepted |  | TRO |  | 
	
		| Ipomoea simplex var. obtusisepala Rendle | Synonym |  | TRO |  | 
	
		| Ipomoea simulans D. Hanb. | Accepted |  | TRO |  | 
	
		| Ipomoea sinaica Tackh. | Unresolved |  | IPNI |  | 
	
		| Ipomoea sinaloensis Brandegee | Synonym |  | TRO |  | 
	
		| Ipomoea sindica Stapf | Synonym |  | TRO |  | 
	
		| Ipomoea sinensis (Desr.) Choisy | Synonym |  | TRO |  | 
	
		| Ipomoea sinensis subsp. blepharosepala (Hochst. ex A. Rich.) Verdc. ex A. Meeuse | Unresolved |  | TRO |  | 
	
		| Ipomoea sinuata Ortega | Synonym |  | TRO |  | 
	
		| Ipomoea sinuata var. edentata Meisn. | Synonym |  | TRO |  | 
	
		| Ipomoea skutchii J.A. McDonald | Synonym |  | TRO |  | 
	
		| Ipomoea × sloteri (House) Ooststr. | Accepted |  | TRO |  | 
	
		| Ipomoea smithii Baker | Synonym |  | TRO |  | 
	
		| Ipomoea sofomarensis Sebsebe | Unresolved |  | IPNI |  | 
	
		| Ipomoea solaniflora Thunb. | Unresolved |  | IPNI |  | 
	
		| Ipomoea solanifolia L. | Synonym |  | TRO |  | 
	
		| Ipomoea soldanellaefolia Schrank | Unresolved |  | IPNI |  | 
	
		| Ipomoea soluta Kerr | Accepted |  | TRO |  | 
	
		| Ipomoea somalensis Verdc. | Unresolved |  | IPNI |  | 
	
		| Ipomoea sororia D.F. Austin & Tapia-Muñoz | Accepted |  | TRO |  | 
	
		| Ipomoea spathulata Hallier f. | Unresolved |  | TRO |  | 
	
		| Ipomoea speciosa (L. f.) Pers. | Synonym |  | TRO |  | 
	
		| Ipomoea spectabilis Bojer ex Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea spectata J.A. McDonald | Accepted |  | TRO |  | 
	
		| Ipomoea sphaerica Hort.Calc. ex Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea sphaerocephala (Roxb.) D. Don | Synonym |  | TRO |  | 
	
		| Ipomoea sphaerostigma Poir. ex Steud. | Unresolved |  | IPNI |  | 
	
		| Ipomoea sphenophylla Urb. | Accepted |  | TRO |  | 
	
		| Ipomoea spicaeflora Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea spicata Kunth | Synonym |  | TRO |  | 
	
		| Ipomoea spinulosa Brandegee | Synonym |  | TRO |  | 
	
		| Ipomoea spirale House | Unresolved |  | IPNI |  | 
	
		| Ipomoea spiralis House | Synonym |  | TRO |  | 
	
		| Ipomoea splendens (Hornem.) Sims | Synonym |  | TRO |  | 
	
		| Ipomoea splendor-sylvae House | Accepted |  | TRO |  | 
	
		| Ipomoea spruceana Benth. ex Meisn. | Accepted |  | TRO |  | 
	
		| Ipomoea squamisepala O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea squamosa Choisy | Accepted |  | TRO |  | 
	
		| Ipomoea squamosa var. petiolaris Meisn. | Synonym |  | TRO |  | 
	
		| Ipomoea squamosa var. villosa Ooststr. | Synonym |  | TRO |  | 
	
		| Ipomoea st-nicolai Bolle | Unresolved |  | IPNI |  | 
	
		| Ipomoea stachyoides Meisn. | Unresolved |  | TRO |  | 
	
		| Ipomoea stans Cav. | Accepted |  | TRO |  | 
	
		| Ipomoea stans var. hirsuta B.L. Rob. | Synonym |  | TRO |  | 
	
		| Ipomoea staphylina Roem. & Schult. | Unresolved |  | TRO |  | 
	
		| Ipomoea staphylina var. malayana Prain | Synonym |  | TRO |  | 
	
		| Ipomoea steerei (Standl.) L.O. Williams | Accepted |  | TRO |  | 
	
		| Ipomoea steeri L.O.Williams | Unresolved |  | IPNI |  | 
	
		| Ipomoea stellaris Baker | Synonym |  | TRO |  | 
	
		| Ipomoea stellata Parodi | Unresolved |  | IPNI |  | 
	
		| Ipomoea stenantha Dunn | Synonym |  | TRO |  | 
	
		| Ipomoea stenobasis Brenan | Unresolved |  | TRO |  | 
	
		| Ipomoea stenocolpa Garcke | Unresolved |  | IPNI |  | 
	
		| Ipomoea stenophylla Meisn. | Accepted |  | TRO |  | 
	
		| Ipomoea stenophyton Chiov. | Unresolved |  | IPNI |  | 
	
		| Ipomoea stenosiphon Hallier f. | Synonym |  | TRO |  | 
	
		| Ipomoea steudelii Millsp. | Accepted |  | TRO |  | 
	
		| Ipomoea stibaropoda Ooststr. | Unresolved |  | IPNI |  | 
	
		| Ipomoea stipulacea Jacq. | Synonym |  | TRO |  | 
	
		| Ipomoea stipulata Jacq. | Unresolved |  | IPNI |  | 
	
		| Ipomoea stocksii C.B.Clarke | Unresolved |  | IPNI |  | 
	
		| Ipomoea stocksii Peter | Unresolved |  | IPNI |  | 
	
		| Ipomoea stolonifera (Cirillo) J.F. Gmel. | Synonym |  | TRO |  | 
	
		| Ipomoea striata Pers. | Unresolved |  | IPNI |  | 
	
		| Ipomoea striata Roth | Unresolved |  | IPNI |  | 
	
		| Ipomoea strigosa Roth | Unresolved |  | IPNI |  | 
	
		| Ipomoea stuckertii O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea stuhlmannii Dammer | Synonym |  | TRO |  | 
	
		| Ipomoea stylosa Hort.Madr. ex Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea suaveolens (M. Martens & Galeotti) Hemsl. | Accepted |  | TRO |  | 
	
		| Ipomoea subdentata Miq. | Synonym |  | TRO |  | 
	
		| Ipomoea subincana Meisn. | Accepted |  | TRO |  | 
	
		| Ipomoea sublucens Rendle | Synonym |  | TRO |  | 
	
		| Ipomoea subpedata Desf. | Unresolved |  | IPNI |  | 
	
		| Ipomoea subrevoluta Choisy | Accepted |  | TRO |  | 
	
		| Ipomoea subrevoluta f. acutiloba Hassl. | Synonym |  | TRO |  | 
	
		| Ipomoea subrevoluta var. genuina Hassl. | Synonym |  | TRO |  | 
	
		| Ipomoea subsessilis Courchet & Gagnep. | Synonym |  | TRO |  | 
	
		| Ipomoea subspicata (Meisn.) O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea subtomentosa (Chodat & Hassl.) O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea subtomentosa f. subtomentosa | Synonym |  | TRO |  | 
	
		| Ipomoea subtriflora Zoll. & Moritzi | Synonym |  | TRO |  | 
	
		| Ipomoea subtriloba Ruiz & Pav. | Synonym |  | TRO |  | 
	
		| Ipomoea subtrilobans Miq. | Synonym |  | TRO |  | 
	
		| Ipomoea subulata Hassl. | Unresolved |  | TRO |  | 
	
		| Ipomoea suburceolata O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea sudanica A.Chev. | Unresolved |  | IPNI |  | 
	
		| Ipomoea suffruticosa Burch. | Synonym |  | TRO |  | 
	
		| Ipomoea suffulta (Kunth) G. Don | Accepted |  | TRO |  | 
	
		| Ipomoea sulcata Parodi | Unresolved |  | IPNI |  | 
	
		| Ipomoea sulina P.P.A.Ferreira & Miotto | Unresolved |  | WCSP (in review) |  | 
	
		| Ipomoea sulphurea (La Llave & Lex.) G. Don | Accepted |  | TRO |  | 
	
		| Ipomoea sultanii Chiov. | Unresolved |  | TRO |  | 
	
		| Ipomoea sumatrana (Miq.) Ooststr. | Accepted |  | TRO |  | 
	
		| Ipomoea superba (Kunth) G. Don | Synonym |  | TRO |  | 
	
		| Ipomoea supersticiosa Barb.Rodr. | Unresolved |  | IPNI |  | 
	
		| Ipomoea supersticiosa Rodr. | Unresolved |  | IPNI |  | 
	
		| Ipomoea surinamensis Miq. | Unresolved |  | IPNI |  | 
	
		| Ipomoea sylvana H.Buek | Unresolved |  | IPNI |  | 
	
		| Ipomoea syringifolia Meisn. | Accepted |  | TRO |  | 
	
		| Ipomoea tabascana J.A. McDonald & D.F. Austin | Accepted |  | TRO |  | 
	
		| Ipomoea taborana Dammer | Unresolved |  | IPNI |  | 
	
		| Ipomoea tacambarensis E. Carranza | Accepted |  | TRO |  | 
	
		| Ipomoea tacuaremboense Arechav. | Unresolved |  | IPNI |  | 
	
		| Ipomoea tacuaremboensis Arechav. | Synonym |  | TRO |  | 
	
		| Ipomoea tambelensis Baker | Unresolved |  | IPNI |  | 
	
		| Ipomoea tamnifolia L. | Synonym |  | TRO |  | 
	
		| Ipomoea tanganyikensis Baker | Unresolved |  | IPNI |  | 
	
		| Ipomoea tapirapoanensis Hoehne | Unresolved |  | IPNI |  | 
	
		| Ipomoea tarijensis O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea tashiroi Matsum. | Synonym |  | TRO |  | 
	
		| Ipomoea tastensis Brandegee | Accepted |  | TRO |  | 
	
		| Ipomoea tchadica A.Chev. | Unresolved |  | IPNI |  | 
	
		| Ipomoea tehuantepecensis L. Torres, R. Torres, M.P. Ramírez & J.A. McDonald | Accepted |  | TRO |  | 
	
		| Ipomoea temascaltepecensis Wilkin | Accepted |  | TRO |  | 
	
		| Ipomoea temnophylla Lebrun & Taton | Unresolved |  | IPNI |  | 
	
		| Ipomoea tenera Meisn. | Accepted |  | TRO |  | 
	
		| Ipomoea tentaculifera Greenm. | Accepted |  | TRO |  | 
	
		| Ipomoea tenuicaulis A.Chev. | Unresolved |  | IPNI |  | 
	
		| Ipomoea tenuifolia (Vahl) Urb. | Accepted |  | TRO |  | 
	
		| Ipomoea tenuiloba Torr. | Accepted |  | TRO |  | 
	
		| Ipomoea tenuiloba var. lemmonii (A. Gray) Yatsk. & C.T. Mason | Accepted |  | TRO |  | 
	
		| Ipomoea tenuiloba var. tenuiloba | Synonym |  | TRO |  | 
	
		| Ipomoea tenuipes Verdc. | Accepted |  | TRO |  | 
	
		| Ipomoea tenuirostris Choisy | Unresolved |  | TRO |  | 
	
		| Ipomoea tenuis E.Mey. ex Hallier f. | Unresolved |  | WCSP (in review) |  | 
	
		| Ipomoea tenuis E.Mey. | Unresolved |  | WCSP (in review) |  | 
	
		| Ipomoea tenuissima Choisy | Accepted |  | TRO |  | 
	
		| Ipomoea teotitlanica McPherson | Accepted |  | TRO |  | 
	
		| Ipomoea teretistigma Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea terminalis Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea ternata Jacq. | Accepted |  | TRO |  | 
	
		| Ipomoea ternifolia Cav. | Accepted |  | TRO |  | 
	
		| Ipomoea ternifolia var. leptotoma (Torr.) J.A. McDonald | Accepted |  | TRO |  | 
	
		| Ipomoea ternifolia var. ternifolia | Synonym |  | TRO |  | 
	
		| Ipomoea ternifolia var. valida (House) J.A. McDonald | Accepted |  | TRO |  | 
	
		| Ipomoea teruae Ant. Molina & L.O. Williams | Synonym |  | TRO |  | 
	
		| Ipomoea tessmannii Pilg. | Unresolved |  | TRO |  | 
	
		| Ipomoea tetraptera Baker | Synonym |  | TRO |  | 
	
		| Ipomoea texana J.M. Coult. | Unresolved |  | TRO |  | 
	
		| Ipomoea theodori O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea thomsoniana Mast. | Unresolved |  | TRO |  | 
	
		| Ipomoea thonningii G.Don | Unresolved |  | IPNI |  | 
	
		| Ipomoea thorelii Gagnep. | Unresolved |  | IPNI |  | 
	
		| Ipomoea thunbergioides Welw. | Unresolved |  | IPNI |  | 
	
		| Ipomoea thurberi A. Gray | Accepted |  | TRO |  | 
	
		| Ipomoea ticcopa Verdc. | Unresolved |  | TRO |  | 
	
		| Ipomoea tigrina Pers. | Unresolved |  | IPNI |  | 
	
		| Ipomoea tigripes Stokes | Unresolved |  | IPNI |  | 
	
		| Ipomoea tiliacea (Willd.) Choisy | Accepted |  | TRO |  | 
	
		| Ipomoea tiliifolia (Desr.) Roem. & Schult. | Synonym |  | TRO |  | 
	
		| Ipomoea timorensis Blume | Synonym |  | TRO |  | 
	
		| Ipomoea tomentosa Choisy | Unresolved |  | TRO |  | 
	
		| Ipomoea tonkinensis Gagnep. | Synonym |  | TRO |  | 
	
		| Ipomoea tortugensis Peter | Unresolved |  | IPNI |  | 
	
		| Ipomoea tragulifera Miers | Unresolved |  | IPNI |  | 
	
		| Ipomoea transvaalensis A. Meeuse | Accepted |  | TRO |  | 
	
		| Ipomoea trematosperma Hochst. ex Choisy | Unresolved |  | TRO |  | 
	
		| Ipomoea triantha Roem. & Schult. | Unresolved |  | IPNI |  | 
	
		| Ipomoea trichocalyx Steud. [Illegitimate] | Synonym |  | WCSP (in review) |  | 
	
		| Ipomoea trichocarpa Elliott | Accepted |  | TRO |  | 
	
		| Ipomoea trichocarpa var. australis O'Donell | Synonym |  | TRO |  | 
	
		| Ipomoea trichocarpa var. trichocarpa | Synonym |  | TRO |  | 
	
		| Ipomoea trichocephala G.Don | Unresolved |  | IPNI |  | 
	
		| Ipomoea trichosperma Blume | Unresolved |  | IPNI |  | 
	
		| Ipomoea trichotosa Blume | Unresolved |  | IPNI |  | 
	
		| Ipomoea tricolor Cav. | Accepted |  | TRO |  | 
	
		| Ipomoea tridentata (L.) Roth | Synonym |  | TRO |  | 
	
		| Ipomoea trifida (Kunth) G. Don | Accepted |  | TRO |  | 
	
		| Ipomoea trifida var. torreyana A. Gray | Synonym |  | TRO |  | 
	
		| Ipomoea trifida var. ymalensis House | Synonym |  | TRO |  | 
	
		| Ipomoea triflora Forssk. | Unresolved |  | TRO |  | 
	
		| Ipomoea trifurcata Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea triloba L. | Accepted |  | TRO |  | 
	
		| Ipomoea triloba var. quinquefolia Kuntze | Synonym |  | TRO |  | 
	
		| Ipomoea trinervia Schulze-Menz | Unresolved |  | TRO |  | 
	
		| Ipomoea trinitensis Urb. | Unresolved |  | TRO |  | 
	
		| Ipomoea triquetra (Vahl) Roem. & Schult. | Synonym |  | TRO |  | 
	
		| Ipomoea tropica Santapau & Patel | Unresolved |  | TRO |  | 
	
		| Ipomoea truncata Roezl in Deut. | Unresolved |  | TRO |  | 
	
		| Ipomoea tuba (Schltdl.) G. Don | Synonym |  | TRO |  | 
	
		| Ipomoea tubata Nees | Accepted |  | TRO |  | 
	
		| Ipomoea tuberculata Ker Gawl. | Accepted |  | TRO |  | 
	
		| Ipomoea tuberculata (Desr.) Roem. & Schult. | Synonym |  | TRO |  | 
	
		| Ipomoea tuberculosa Desf. | Unresolved |  | IPNI |  | 
	
		| Ipomoea tuberosa L. | Synonym |  | TRO |  | 
	
		| Ipomoea tubiflora Hook. f. | Accepted |  | TRO |  | 
	
		| Ipomoea tuboides O. Deg. & Ooststr. | Accepted |  | TRO |  | 
	
		| Ipomoea tubulata Sess | Unresolved |  | IPNI |  | 
	
		| Ipomoea tubulosa Roem. & Schult. | Synonym |  | TRO |  | 
	
		| Ipomoea tuerckheimii Vatke ex Donn. Sm. | Synonym |  | TRO |  | 
	
		| Ipomoea turbinata Lag. ex Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea turbinata Lag. | Unresolved |  | IPNI |  | 
	
		| Ipomoea turneroides Chodat & Hassl. | Synonym |  | TRO |  | 
	
		| Ipomoea turpethum (L.) R. Br. | Synonym |  | TRO |  | 
	
		| Ipomoea turpethum var. anceps (L.) Miq. | Synonym |  | TRO |  | 
	
		| Ipomoea tuxtlensis House | Accepted |  | TRO |  | 
	
		| Ipomoea tweediei Hook. | Unresolved |  | TRO |  | 
	
		| Ipomoea tyrianthina Lindl. | Synonym |  | TRO |  | 
	
		| Ipomoea ugborea Ogunw. | Unresolved |  | IPNI |  | 
	
		| Ipomoea uhdeana D.F.Austin | Unresolved |  | IPNI |  | 
	
		| Ipomoea ukambensis Vatke | Unresolved |  | IPNI |  | 
	
		| Ipomoea uliginosa Welw. ex Rendle | Unresolved |  | IPNI |  | 
	
		| Ipomoea umbellata L. | Unresolved |  | TRO |  | 
	
		| Ipomoea umbellifera Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea umbraticola House | Synonym |  | TRO |  | 
	
		| Ipomoea uncinata Hutch. | Synonym |  | TRO |  | 
	
		| Ipomoea undulata Baker ex Baker & Wright | Synonym |  | TRO |  | 
	
		| Ipomoea uniflora (Burm.) Roem. & Schult. | Synonym |  | TRO |  | 
	
		| Ipomoea urbaniana (Dammer) Hallier f. | Accepted |  | TRO |  | 
	
		| Ipomoea urbica Choisy | Synonym |  | TRO |  | 
	
		| Ipomoea urbica var. muricata Choisy | Synonym |  | TRO |  | 
	
		| Ipomoea urbinei House | Accepted |  | TRO |  | 
	
		| Ipomoea urceolata R. Br. | Synonym |  | TRO |  | 
	
		| Ipomoea ursina Brandegee | Synonym |  | TRO |  | 
	
		| Ipomoea uruguayensis Meisn. | Accepted |  | TRO |  | 
	
		| Ipomoea uruguayensis var. elliptica Chodat & Hassl. | Synonym |  | TRO |  | 
	
		| Ipomoea uruguayensis var. glabrata Chodat & Hassl. | Synonym |  | TRO |  | 
	
		| Ipomoea uruguayensis f. retusa Chodat & Hassl. | Synonym |  | TRO |  | 
	
		| Ipomoea utilis Choisy | Unresolved |  | TRO |  | 
	
		| Ipomoea vagans Baker | Accepted |  | TRO |  | 
	
		| Ipomoea vahliana House | Unresolved |  | IPNI |  | 
	
		| Ipomoea valenzulensis Chodat & Hassl. | Accepted |  | TRO |  | 
	
		| Ipomoea valerii Standl. & L.O. Williams | Accepted |  | TRO |  | 
	
		| Ipomoea valida House | Synonym |  | TRO |  | 
	
		| Ipomoea vaniotiana H.Lév. | Synonym |  | WCSP (in review) |  | 
	
		| Ipomoea vargasiana O'Donell | Synonym |  | TRO |  | 
	
		| Ipomoea varia Roth | Unresolved |  | IPNI |  | 
	
		| Ipomoea variabilis (Schltdl. & Cham.) Choisy | Accepted |  | TRO |  | 
	
		| Ipomoea variifolia Meisn. | Accepted |  | TRO |  | 
	
		| Ipomoea velardei O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea velloziana Mart. | Accepted |  | TRO |  | 
	
		| Ipomoea velutina R.Br. | Unresolved |  | IPNI |  | 
	
		| Ipomoea velutipes Welw. ex Rendle | Synonym |  | TRO |  | 
	
		| Ipomoea venosa (Desr.) Roem. & Schult. | Accepted |  | TRO |  | 
	
		| Ipomoea venosa subsp. stellaris (Baker) Verdc. | Accepted |  | TRO |  | 
	
		| Ipomoea ventricosa (Bertero) G. Don | Synonym |  | TRO |  | 
	
		| Ipomoea venustum (M. Martens & Galeotti) Hemsl. | Synonym |  | TRO |  | 
	
		| Ipomoea verbasciformis (Meisn.) O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea verbascoidea Choisy | Accepted |  | TRO |  | 
	
		| Ipomoea verdcourtiana Lejoly & Lisowski | Unresolved |  | IPNI |  | 
	
		| Ipomoea verdickii De Wild. | Unresolved |  | IPNI |  | 
	
		| Ipomoea verecunda N.E. Br. | Synonym |  | TRO |  | 
	
		| Ipomoea vernalis R.E.Fr. | Unresolved |  | IPNI |  | 
	
		| Ipomoea verniciflua Meisn. | Unresolved |  | IPNI |  | 
	
		| Ipomoea vernicifolia Arn. | Unresolved |  | IPNI |  | 
	
		| Ipomoea verrucipes C.A.Mey. | Unresolved |  | IPNI |  | 
	
		| Ipomoea verrucisepala Verdc. | Unresolved |  | TRO |  | 
	
		| Ipomoea verrucosa Blume | Synonym |  | TRO |  | 
	
		| Ipomoea verruculosa (Pittier) O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea versicolor Meisn. | Unresolved |  | IPNI |  | 
	
		| Ipomoea verticillata L. | Synonym |  | TRO |  | 
	
		| Ipomoea vesiculosa P. Beauv. | Synonym |  | TRO |  | 
	
		| Ipomoea vespertina Colla | Unresolved |  | IPNI |  | 
	
		| Ipomoea vestalii Standl. | Synonym |  | TRO |  | 
	
		| Ipomoea villicalyx N.E. Br. | Synonym |  | TRO |  | 
	
		| Ipomoea villicaulis Domin | Unresolved |  | IPNI |  | 
	
		| Ipomoea villifera House | Accepted |  | TRO |  | 
	
		| Ipomoea villosa Ruiz & Pav. | Synonym |  | TRO |  | 
	
		| Ipomoea villosa var. argentea (Meisn.) Hallier | Synonym |  | TRO |  | 
	
		| Ipomoea villosula Blume ex Steud. | Unresolved |  | IPNI |  | 
	
		| Ipomoea violacea L. | Accepted |  | TRO |  | 
	
		| Ipomoea virgata Meisn. | Accepted |  | TRO |  | 
	
		| Ipomoea virgata var. subspicata Meisn. | Synonym |  | TRO |  | 
	
		| Ipomoea virgata var. verbasciformis Meisn. | Synonym |  | TRO |  | 
	
		| Ipomoea viridiflora Urb. | Unresolved |  | TRO |  | 
	
		| Ipomoea viridis Choisy | Accepted |  | TRO |  | 
	
		| Ipomoea viscosa Wiggins | Synonym |  | TRO |  | 
	
		| Ipomoea vitifolia (Burm. f.) Blume | Synonym |  | TRO |  | 
	
		| Ipomoea vitifolia var. angularis (Burm. f.) Choisy | Synonym |  | TRO |  | 
	
		| Ipomoea vivianae Krapov. | Unresolved |  | WCSP (in review) |  | 
	
		| Ipomoea vogelii Baker | Unresolved |  | IPNI |  | 
	
		| Ipomoea volcanensis O'Donell | Accepted |  | TRO |  | 
	
		| Ipomoea vulsa House | Synonym |  | TRO |  | 
	
		| Ipomoea wakefieldii Baker | Unresolved |  | IPNI |  | 
	
		| Ipomoea walcottiana J.W.Rose | Unresolved |  | IPNI |  | 
	
		| Ipomoea waldecki Regel | Unresolved |  | IPNI |  | 
	
		| Ipomoea wallichii (Choisy) Steud. | Synonym |  | TRO |  | 
	
		| Ipomoea wallii (C. Morren) Hemsl. | Synonym |  | TRO |  | 
	
		| Ipomoea walpersiana Urb. | Accepted |  | TRO |  | 
	
		| Ipomoea wangii C.Y. Wu | Accepted |  | TRO |  | 
	
		| Ipomoea warmingii Meisn. | Synonym |  | TRO |  | 
	
		| Ipomoea wattii C.B.Clarke | Unresolved |  | IPNI |  | 
	
		| Ipomoea webbii Coutinho | Unresolved |  | IPNI |  | 
	
		| Ipomoea weinmannii Roem. & Schult. | Unresolved |  | IPNI |  | 
	
		| Ipomoea welwitschii Vatke ex Hallier f. | Unresolved |  | TRO |  | 
	
		| Ipomoea whyteana Rendle | Unresolved |  | IPNI |  | 
	
		| Ipomoea wightii (Wall.) Choisy | Accepted |  | TRO |  | 
	
		| Ipomoea wightii var. kilimandschari (Dammer) Verdc. | Accepted |  | TRO |  | 
	
		| Ipomoea wightii var. wightii | Synonym |  | TRO |  | 
	
		| Ipomoea willdenowii Roem. & Schult. | Synonym |  | TRO |  | 
	
		| Ipomoea wilsonii House | Synonym |  | TRO |  | 
	
		| Ipomoea wolcottiana Rose | Accepted |  | TRO |  | 
	
		| Ipomoea wolcottiana subsp. calodendron (O'Donell) McPherson | Accepted |  | TRO |  | 
	
		| Ipomoea wolcottiana subsp. wolcottiana | Synonym |  | TRO |  | 
	
		| Ipomoea wolcottiana var. wolcottiana | Synonym |  | TRO |  | 
	
		| Ipomoea woodii N.E. Br. | Synonym |  | TRO |  | 
	
		| Ipomoea woronovii (Standl.) D.F. Austin | Synonym |  | TRO |  | 
	
		| Ipomoea woronovii var. lutea (House) D.F. Austin | Synonym |  | TRO |  | 
	
		| Ipomoea wrightii A. Gray | Accepted |  | TRO |  | 
	
		| Ipomoea xanthantha Kurz | Unresolved |  | IPNI |  | 
	
		| Ipomoea xanthophylla Hochst. ex Hallier f. | Unresolved |  | IPNI |  | 
	
		| Ipomoea xiphosepala Baker | Synonym |  | TRO |  | 
	
		| Ipomoea yamuriensis Urb. | Unresolved |  | TRO |  | 
	
		| Ipomoea yaracuyensis J.R. Grande & W. Meier | Unresolved |  | TRO |  | 
	
		| Ipomoea yardiensis A.S. George & Tate | Unresolved |  | TRO |  | 
	
		| Ipomoea yetira Parodi | Unresolved |  | IPNI |  | 
	
		| Ipomoea yomae Kurz | Synonym |  | TRO |  | 
	
		| Ipomoea yunnanensis Courchet & Gagnep. | Synonym |  | TRO |  | 
	
		| Ipomoea yunnanensis var. glabrescens C.Y. Wu | Synonym |  | TRO |  | 
	
		| Ipomoea yunnanensis var. pallescens C.Y. Wu | Synonym |  | TRO |  | 
	
		| Ipomoea yunnanensis var. uniflora C.Y. Wu | Synonym |  | TRO |  | 
	
		| Ipomoea zambesiaca Baker | Synonym |  | TRO |  | 
	
		| Ipomoea zanzibarica Verdc. | Unresolved |  | TRO |  | 
	
		| Ipomoea zebrina Perr. ex Choisy | Unresolved |  | IPNI |  | 
	
		| Ipomoea zelayana Standl. & L.O. Williams | Unresolved |  | TRO |  | 
	
		| Ipomoea zeylanica Gaertn. | Unresolved |  | IPNI |  | 
	
		| Ipomoea zimmermanii J.A. McDonald | Accepted |  | TRO |  | 
	
		| Ipomoea zuccagnii Roem. & Schult. | Unresolved |  | IPNI |  |