| Rhamnus acuminata Maguire & Steyerm. [Unplaced] | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus acuminata Colebr. ex Roxb. | Synonym |  | TRO | 
	
		| Rhamnus acuminatifolia Hayata | Synonym |  | WCSP (in review) | 
	
		| Rhamnus adriatica Jord. ex Nyman | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus affinis Blume | Synonym |  | TRO | 
	
		| Rhamnus afghanica Grubov | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus africana Mill. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus agrestis Lour. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus alaternoides Candargy | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus alaternus L. | Accepted |  | WCSP (in review) | 
	
		| Rhamnus alaternus var. angustifolia DC. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus alaternus var. balearica DC. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus alaternus var. hispanica DC. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus alaternus var. vulgaris DC. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus albanica Pénzes | Synonym |  | WCSP (in review) | 
	
		| Rhamnus albida Larrañaga | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus alnifolia L'Hér. | Accepted |  | WCSP (in review) | 
	
		| Rhamnus alnoides Gray | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus alpina L. | Accepted |  | WCSP (in review) | 
	
		| Rhamnus alpina subsp. fallax (Boiss.) Maire & Petitm. | Accepted |  | WCSP (in review) | 
	
		| Rhamnus alpina subsp. glaucophylla (Sommier) Tutin | Accepted |  | WCSP (in review) | 
	
		| Rhamnus amasiensis Bornm. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus americana Dippel | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus amole Sessé & Moc. | Synonym |  | TRO | 
	
		| Rhamnus amygdalina Moris | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus amygdalina Desf. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus anatolica Grubov | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus angulata Pers. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus angustifolia K.Koch | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus annonifolia Greene | Synonym |  | WCSP (in review) | 
	
		| Rhamnus aphylla J.G.Gmel. ex Steud. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus aragonensis Asso | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus arenicola Casar. | Synonym |  | TRO | 
	
		| Rhamnus arguta Maxim. | Accepted |  | TRO | 
	
		| Rhamnus arguta var. arguta | Accepted |  | TRO | 
	
		| Rhamnus arguta var. betulifolia Liou & Li | Synonym |  | TRO | 
	
		| Rhamnus arguta var. cuneatifolia Wang & Li | Synonym |  | TRO | 
	
		| Rhamnus arguta var. nakaharae Hayata | Synonym |  | TRO | 
	
		| Rhamnus arguta var. rotundifolia Wang & Li | Synonym |  | TRO | 
	
		| Rhamnus arnottiana Gardner ex Thwaites | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus asiatica (L.) Lam. ex Poir. | Synonym |  | TRO | 
	
		| Rhamnus asplenifolia Carrière | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus asplenifolia Simonk. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus atlantica (Murb.) Stübing, Peris & Figuerola | Accepted |  | WCSP (in review) | 
	
		| Rhamnus atroviridis Rusby | Synonym |  | WCSP (in review) | 
	
		| Rhamnus aurea Heppeler | Accepted |  | TRO | 
	
		| Rhamnus australis Pers. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus autumnalis Gand. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus awarica Sachok. | Synonym |  | TRO | 
	
		| Rhamnus baetica Willk. & E.Rev. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus baldschuanica Grubov | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus balearica (DC.) Willk. [Illegitimate] | Synonym |  | WCSP (in review) | 
	
		| Rhamnus baphicoccus Rothm. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus baptica Decne. ex Rondot | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus × bermejoi P.Fraga & Rosselló | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus betulifolia Greene | Synonym |  | WCSP (in review) | 
	
		| Rhamnus betulifolia var. obovata Kearney & Peebles | Synonym |  | TRO | 
	
		| Rhamnus biglandulosa Sessé & Moc. | Synonym |  | TRO | 
	
		| Rhamnus billardii Dippel | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus billardii Lavallée | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus biniflorus DC. | Unresolved |  | TRO | 
	
		| Rhamnus bithynica Bornm. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus blinii (H. Lév.) Rehder | Synonym |  | TRO | 
	
		| Rhamnus blinii var. sargentiana (C.K. Schneid.) Rehder | Synonym |  | TRO | 
	
		| Rhamnus × blumeri Greene | Synonym |  | WCSP (in review) | 
	
		| Rhamnus bodinieri H. Lév. | Accepted |  | TRO | 
	
		| Rhamnus bodinieri f. silvicola C.K. Schneid. | Synonym |  | TRO | 
	
		| Rhamnus boissieri Heldr. ex Boiss. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus boliviana Rusby | Synonym |  | WCSP (in review) | 
	
		| Rhamnus borneensis Steenis | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus bourgaeana Gand. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus brachypoda C.Y. Wu ex Y.L. Chen & P.K. Chou | Accepted |  | TRO | 
	
		| Rhamnus brandegeeana Standl. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus brasiliensis Spreng. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus breedlovei M.C. Johnst. & L.A. Johnst. | Accepted |  | TRO | 
	
		| Rhamnus buergeri Miq. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus bungeana J.J. Vassil. | Accepted |  | TRO | 
	
		| Rhamnus burgundiaca Desf. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus buxifolia Poir. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus cachemirica Gand. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus cadevallii Pau | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus × calcicola Rech.f. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus × calcicola Hatus. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus calcicolus Q.H. Chen | Accepted |  | TRO | 
	
		| Rhamnus calderoniae R.Fern. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus californica Eschsch. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus californica var. crassifolia Jeps. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus californica subsp. crassifolia (Jeps.) C.B. Wolf | Synonym |  | TRO | 
	
		| Rhamnus californica subsp. cuspidata (Greene) C.B. Wolf | Synonym |  | TRO | 
	
		| Rhamnus californica var. obtusissima (Greene) Jeps. | Synonym |  | TRO | 
	
		| Rhamnus californica subsp. occidentalis (Howell ex Greene) C.B. Wolf | Synonym |  | TRO | 
	
		| Rhamnus californica var. occidentalis (Howell ex Greene) Jeps. | Synonym |  | TRO | 
	
		| Rhamnus californica subsp. tomentella (Benth.) C.B. Wolf | Synonym |  | TRO | 
	
		| Rhamnus californica var. tomentella (Benth.) W.H. Brewer & S. Watson | Synonym |  | TRO | 
	
		| Rhamnus californica subsp. ursina (Greene) C.B. Wolf | Synonym |  | TRO | 
	
		| Rhamnus californica var. ursina (Greene) McMinn | Synonym |  | TRO | 
	
		| Rhamnus californica var. viridula Jeps. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus calycifolia Sessé & Moc. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus cambodiana Pierre ex Pit. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus canadensis K.Koch | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus capensis Thunb. | Synonym |  | TRO | 
	
		| Rhamnus capillaris Pourr. ex Willk. & Lange | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus capreifolia Schltdl. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus capreifolia subsp. capreifolia | Synonym |  | TRO | 
	
		| Rhamnus capreifolia var. discolor Donn.Sm. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus capreifolia subsp. discolor (Donn.Sm.) C.B.Wolf | Synonym |  | WCSP (in review) | 
	
		| Rhamnus capreifolia var. grandifolia M.C.Johnst. & L.A.Johnst. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus capreifolia var. matudae M.C.Johnst. & L.A.Johnst. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus cardiocarpa Willd. ex Schult. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus cardiosperma Willd. ex DC. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus caroliniana Walter | Synonym |  | TRO | 
	
		| Rhamnus caroliniana Blanco | Synonym |  | TRO | 
	
		| Rhamnus carpinifolia Pall. | Synonym |  | TRO | 
	
		| Rhamnus cassinoides Lam. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus castaneifolia Lebas | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus castorea Greene | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus catalinae Davidson | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus cathartica L. | Accepted |  | WCSP (in review) | 
	
		| Rhamnus cathartica var. dahurica (Pall.) Maxim. | Synonym |  | TRO | 
	
		| Rhamnus cathartica var. intermedia Maxim. | Synonym |  | TRO | 
	
		| Rhamnus cavaleriei H. Lév. | Synonym |  | TRO | 
	
		| Rhamnus celtifolia Thunb. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus chacaye Dombey ex Brongn. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus chekiangensis Cheng | Synonym |  | TRO | 
	
		| Rhamnus chiennanensis Z.R.Xu | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus chimalapensis R.Fern. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus chimantensis Steyerm. & Maguire | Synonym |  | WCSP (in review) | 
	
		| Rhamnus chinensis Koehne | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus chingshuiensis T.Shimizu | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus chlorophora Decne. | Synonym |  | TRO | 
	
		| Rhamnus chrysophylla (Reissek) Weberb. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus chugokuensis Hatus. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus cinerascens Blume | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus circumscissa L. f. | Synonym |  | TRO | 
	
		| Rhamnus citrifolia Rusby | Synonym |  | WCSP (in review) | 
	
		| Rhamnus citrifolia (Weston) W.J. Hess & Stearn | Accepted |  | TRO | 
	
		| Rhamnus citrifolia var. nipponica (Makino) W.J. Hess & Stearn | Synonym |  | TRO | 
	
		| Rhamnus clusii Willd. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus colchica Medw. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus colchica (Kusn.) Sommier & Levier | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus collettii Bhandari & Bhansali | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus collina Salisb. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus × colmeiroi D.Rivera, Obón & Selma | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus colubrina Jacq. | Synonym |  | TRO | 
	
		| Rhamnus colubrina L. | Synonym |  | TRO | 
	
		| Rhamnus confinis Greene | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus conjugata Grubov | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus cordata Medw. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus coriacea Brouss. ex Schult. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus coriacea Buch | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus coriacea Willd. ex Spreng. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus coriaceifolia H.Lév. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus coriophylla Hand.-Mazz. | Accepted |  | TRO | 
	
		| Rhamnus cornifolia Boiss. & Hohen. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus coronula Larrañaga | Synonym |  | TRO | 
	
		| Rhamnus corymbosa Vahl ex Schult. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus costata Maxim. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus crenata Siebold & Zucc. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus crenata var. cambodiana (Pierre ex Pit.) Tardieu | Synonym |  | TRO | 
	
		| Rhamnus crenata var. crenata | Unresolved |  | TRO | 
	
		| Rhamnus crenata var. discolor Rehder | Synonym |  | WCSP (in review) | 
	
		| Rhamnus crenata var. oreigenes (Hance) Tardieu | Synonym |  | TRO | 
	
		| Rhamnus crenata var. yakushimensis Makino ex Masam. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus crenulata Aiton | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus crini Orph. ex Boiss. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus crocea Nutt. | Accepted |  | TRO | 
	
		| Rhamnus crocea subsp. ilicifolia (Kellogg) C.B. Wolf | Accepted |  | TRO | 
	
		| Rhamnus crocea subsp. insula (Kellogg) C.B. Wolf | Accepted |  | TRO | 
	
		| Rhamnus crocea subsp. pilosa (Trel. ex Curran) C.B. Wolf | Accepted |  | TRO | 
	
		| Rhamnus crocea var. pilosa Trel. ex Curran | Synonym |  | TRO | 
	
		| Rhamnus crocea subsp. pirifolia (Greene) C.B. Wolf | Synonym |  | TRO | 
	
		| Rhamnus crocea var. pirifolia (Greene) Little | Accepted |  | TRO | 
	
		| Rhamnus cubensis Jacq. | Synonym |  | TRO | 
	
		| Rhamnus cumanensis Loefl. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus cuneata Douglas | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus cuneatus Hook. | Synonym |  | TRO | 
	
		| Rhamnus cuneifolia Poir. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus cuspidata Greene | Synonym |  | TRO | 
	
		| Rhamnus dahuricus Lawson | Unresolved |  | TRO | 
	
		| Rhamnus dalanta Blanco | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus dalianensis S.Y. Li & Z.H. Ning | Accepted |  | TRO | 
	
		| Rhamnus daliensis G.S. Fan & L.L. Deng | Accepted |  | TRO | 
	
		| Rhamnus davurica Pall. | Accepted |  | WCSP (in review) | 
	
		| Rhamnus davurica var. hirsuta (Wight & Arn.) M.A. Lawson | Synonym |  | TRO | 
	
		| Rhamnus davurica var. liukiuensis E.H. Wilson | Synonym |  | TRO | 
	
		| Rhamnus davurica subsp. nipponica (Makino) Kartesz & Gandhi | Accepted |  | TRO | 
	
		| Rhamnus decipiens T.Itô | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus decussatus Ruiz & Pav. | Unresolved |  | TRO | 
	
		| Rhamnus deflersii Schweinf. ex Fiori | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus depressa Grub. | Accepted |  | TRO | 
	
		| Rhamnus diamantiaca Nakai | Accepted |  | TRO | 
	
		| Rhamnus dianthes L.Riley | Synonym |  | WCSP (in review) | 
	
		| Rhamnus diffusa Clos | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus discolor (Donn.Sm.) Rose [Illegitimate] | Synonym |  | WCSP (in review) | 
	
		| Rhamnus discolor Lesq. | Synonym |  | TRO | 
	
		| Rhamnus disperma Ehrenb. ex Boiss. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus disticha Sessé & Moc. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus divaricata Forssk. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus dolichophylla Gontsch. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus domingensis Jacq. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus drummondii M.Young | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus dumetorum C.K. Schneid. | Accepted |  | TRO | 
	
		| Rhamnus dumosa Dippel | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus elaeocarpum Reissek | Unresolved |  | TRO | 
	
		| Rhamnus elbursensis Gauba & Rech.f. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus elegans Kunth | Synonym |  | WCSP (in review) | 
	
		| Rhamnus ellipsoidea Greene | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus elliptica Sw. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus ephedra Dombey ex DC. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus eriocarpa O.Schwarz | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus erythroxyloides Hoffmanns. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus erythroxylon Georgi | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus erythroxylum Pall. | Accepted |  | TRO | 
	
		| Rhamnus escalerae Pau | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus esquirolii H. Lév. | Accepted |  | TRO | 
	
		| Rhamnus esquirolii var. esquirolii | Accepted |  | TRO | 
	
		| Rhamnus fallax Boiss. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus fallax var. guicciardii Boiss. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus fasciculata Greene | Synonym |  | TRO | 
	
		| Rhamnus ferrea Vahl | Synonym |  | WCSP (in review) | 
	
		| Rhamnus ferruginea Nutt. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus filiformis Roth | Synonym |  | TRO | 
	
		| Rhamnus flavescens Y.L. Chen & P.K. Chou | Accepted |  | TRO | 
	
		| Rhamnus flavida Momiy. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus formosana Matsum. | Accepted |  | TRO | 
	
		| Rhamnus frangula L. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus franguloides Willd. ex Schult. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus franguloides Michx. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus fulvotincta F.P. Metcalf | Accepted |  | TRO | 
	
		| Rhamnus × gayeri Kárpáti ex Soó | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus gilgiana Heppeler | Accepted |  | TRO | 
	
		| Rhamnus glaberrima Peyron | Synonym |  | WCSP (in review) | 
	
		| Rhamnus glabra (Nakai) Nakai | Synonym |  | TRO | 
	
		| Rhamnus glabra var. manshurica Nakai | Synonym |  | TRO | 
	
		| Rhamnus glabrata B.Heyne | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus glandulosa Aiton | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus glaucophylla Sommier | Synonym |  | WCSP (in review) | 
	
		| Rhamnus globosa Bunge | Accepted |  | TRO | 
	
		| Rhamnus globosa var. glabra Nakai | Synonym |  | TRO | 
	
		| Rhamnus globosa var. meyeri (C.K. Schneid.) S.Y. Li & Z.H. Ning | Synonym |  | TRO | 
	
		| Rhamnus globosa var. ziziphifolia T. Tang | Synonym |  | TRO | 
	
		| Rhamnus globulariifolia Arv.-Touv. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus glomerata Benth. | Synonym |  | TRO | 
	
		| Rhamnus gonzalezii L.Riley | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus goudotiana Triana & Planch. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus graeca Boiss. & Reut. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus grandiflora C.Y. Wu ex Y.L. Chen & P.K. Chou | Accepted |  | TRO | 
	
		| Rhamnus grandifolia Fisch. & C.A.Mey | Synonym |  | WCSP (in review) | 
	
		| Rhamnus grangenos Sessé & Moc. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus granulosa (Ruiz & Pav.) Weberb. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus granulosa (Ruiz & Pav.) Weberb. ex M.C. Johnst. | Synonym |  | TRO | 
	
		| Rhamnus grisea Merr. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus guayaquilensis Kunth | Synonym |  | TRO | 
	
		| Rhamnus guicciardii (Boiss.) Heldr. & Sart. ex Halácsy | Synonym |  | WCSP (in review) | 
	
		| Rhamnus hainanensis Merr. & Chun | Accepted |  | TRO | 
	
		| Rhamnus hamatidens H. Lév. | Synonym |  | TRO | 
	
		| Rhamnus hederacea Delort. ex Nyman | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus heldreichii Boiss. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus hemsleyana C.K. Schneid. | Accepted |  | TRO | 
	
		| Rhamnus hemsleyana var. hemsleyana | Accepted |  | TRO | 
	
		| Rhamnus hemsleyana var. paucinervata G.S. Fan & L.L. Deng | Synonym |  | TRO | 
	
		| Rhamnus hemsleyana var. yunnanensis C.Y. Wu ex Y.L. Chen & P.K. Chou | Accepted |  | TRO | 
	
		| Rhamnus henryi C.K.Schneid. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus heterogenea Burm.f. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus heterophylla Oliv. | Accepted |  | TRO | 
	
		| Rhamnus heterophylla var. oblongifolia E. Pritz. | Synonym |  | TRO | 
	
		| Rhamnus hintonii M.C. Johnst. & L.A. Johnst. | Accepted |  | TRO | 
	
		| Rhamnus hirsuta Wight & Arn. | Synonym |  | TRO | 
	
		| Rhamnus hirtella Boiss. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus hispanica K.Koch | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus hispanorum Gand. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus holstii Engl. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus horrida Salisb. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus horridissima Bornm. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus humboldtiana Willd. ex Schult. | Accepted |  | WCSP (in review) | 
	
		| Rhamnus humifusa Schur | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus hupehensis C.K. Schneid. | Accepted |  | TRO | 
	
		| Rhamnus × hybrida L'Hér. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus hydriensis Hacq. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus hypochrysa C.K. Schneid. | Synonym |  | TRO | 
	
		| Rhamnus iguanaea Jacq. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus ilicifolia Kellogg | Synonym |  | TRO | 
	
		| Rhamnus illyrica Griseb. ex Pant. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus imeretina Booth, Petz. & Kirchn. | Accepted |  | TRO | 
	
		| Rhamnus incana Roxb. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus inconspicua Grubov | Synonym |  | TRO | 
	
		| Rhamnus indica Grubov | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus inebrians R.Br. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus inermis Gilib. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus infectoria Tchich. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus infectoria W.D.J.Koch | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus infectoria L. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus infusionum Delile | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus insula Kellogg | Synonym |  | TRO | 
	
		| Rhamnus insularis Greene | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus insularis Kellogg | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus integrifolia Spreng. ex Meisn. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus integrifolia DC. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus × intermedia Steud. & Hochst. | Accepted |  | WCSP (in review) | 
	
		| Rhamnus iranica Hausskn. ex C.K.Schneid. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus ishidae Miyabe & Kudô | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus iteinophylla C.K. Schneid. | Accepted |  | TRO | 
	
		| Rhamnus × jacobi-salvadorii O.Bolòs & Vigo | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus japonica Maxim. | Accepted |  | TRO | 
	
		| Rhamnus javanica Miq. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus jelskii Zahlbr. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus jelskii Szyszyl. | Synonym |  | TRO | 
	
		| Rhamnus jujuba L. | Synonym |  | TRO | 
	
		| Rhamnus kabylica (Maire) Grubov | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus kanagusukii Makino | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus kayacikii Yalt. & P.H.Davis | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus kiusiana Hatus. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus koraiensis C.K. Schneid. | Accepted |  | TRO | 
	
		| Rhamnus kurdica Boiss. & Hohen. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus kwangsiensis Y.L. Chen & P.K. Chou | Accepted |  | TRO | 
	
		| Rhamnus laetevirens Kom. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus laevigata Vahl | Synonym |  | TRO | 
	
		| Rhamnus lamprophylla C.K. Schneid. | Accepted |  | TRO | 
	
		| Rhamnus lanceolata Pursh | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus lanceolata var. glabrata Gleason | Synonym |  | TRO | 
	
		| Rhamnus lanceolata subsp. glabrata (Gleason) Kartesz & Gandhi | Unresolved |  | TRO | 
	
		| Rhamnus lando Llanos | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus laoshanensis D.K. Zang | Accepted |  | TRO | 
	
		| Rhamnus latifolia L'Hér. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus laurifolia Nutt. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus ledermannii Lauterb. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus legionensis Rothm. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus leprosa Blume | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus leptacantha C.K. Schneid. | Accepted |  | TRO | 
	
		| Rhamnus leptophylla C.K. Schneid. | Accepted |  | TRO | 
	
		| Rhamnus leptophylla var. milensis C.K. Schneid. | Synonym |  | TRO | 
	
		| Rhamnus leptophylla var. scabrella Rehder | Synonym |  | TRO | 
	
		| Rhamnus leucodermis Baker | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus leveilleana Fedde | Synonym |  | TRO | 
	
		| Rhamnus libanotica Boiss. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus lindeniana Triana & Planch. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus linearis Clos | Synonym |  | TRO | 
	
		| Rhamnus lineata L. | Synonym |  | TRO | 
	
		| Rhamnus lineatifolia Schult. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus littoralis Siebold ex Miq. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus liukiuensis (E.H. Wilson) Koidz. | Accepted |  | TRO | 
	
		| Rhamnus lojaconoi Raimondo | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus longifolia Dum.Cours. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus longifolia Mill. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus longipes Merr. & Chun | Synonym |  | WCSP (in review) | 
	
		| Rhamnus longistyla C.B. Wolf | Accepted |  | TRO | 
	
		| Rhamnus longpipes Steyerm. | Accepted |  | TRO | 
	
		| Rhamnus lotus L. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus lucida Roxb. | Synonym |  | TRO | 
	
		| Rhamnus ludovici-salvatoris Chodat | Accepted |  | WCSP (in review) | 
	
		| Rhamnus lycioides L. | Accepted |  | WCSP (in review) | 
	
		| Rhamnus lycioides subsp. atlantica (Murb.) Jahand. & Maire | Synonym |  | WCSP (in review) | 
	
		| Rhamnus lycioides subsp. graeca (Boiss. & Reut.) Tutin | Accepted |  | WCSP (in review) | 
	
		| Rhamnus lycioides subsp. oleoides (L.) Jahand. & Maire | Accepted |  | WCSP (in review) | 
	
		| Rhamnus lycioides subsp. velutina (Boiss.) Tutin | Accepted |  | WCSP (in review) | 
	
		| Rhamnus lycium Scop. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus macedonica Diap. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus macrocarpa Standl. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus maculata Sessé & Moc. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus madagascariensis Pourr. ex Baill. | Synonym |  | TRO | 
	
		| Rhamnus major Carrière | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus marahuacensis Steyerm. & Maguire | Accepted |  | WCSP (in review) | 
	
		| Rhamnus martini H. Lév. | Synonym |  | TRO | 
	
		| Rhamnus matudai Lundell | Unresolved |  | TRO | 
	
		| Rhamnus mauritiana Soy.-Will. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus maximovicziana J.J. Vassil. | Accepted |  | TRO | 
	
		| Rhamnus maximovicziana var. maximovicziana | Accepted |  | TRO | 
	
		| Rhamnus maytenoides Weberb. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus mcvaughii L.A. Johnst. & M.C. Johnst. | Accepted |  | TRO | 
	
		| Rhamnus medwedewii Sachok. | Synonym |  | TRO | 
	
		| Rhamnus meyeri C.K. Schneid. | Synonym |  | TRO | 
	
		| Rhamnus micrantha L. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus microcarpa Boiss. | Accepted |  | TRO | 
	
		| Rhamnus microphylla Humb. & Bonpl. ex Schult. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus microreticulata Maguire & Steyerm. | Synonym |  | TRO | 
	
		| Rhamnus mildbraedii Engl. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus minnanensis K.M.Li | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus minor Mill. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus minuta Grubov | Accepted |  | TRO | 
	
		| Rhamnus minutiflora Michx. | Synonym |  | TRO | 
	
		| Rhamnus mollis Merr. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus mongolica Y.Z.Zhao & L.Q.Zhao | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus mucronata Schltdl. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus × mulleyana Fritsch | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus myrtifolia Willk. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus myrtillus H. Lév. | Synonym |  | TRO | 
	
		| Rhamnus myrtina Burm. f. | Synonym |  | TRO | 
	
		| Rhamnus mystacinus Aiton | Synonym |  | TRO | 
	
		| Rhamnus nabeca Forssk. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus nakaharae (Hayata) Hayata | Accepted |  | TRO | 
	
		| Rhamnus nambuana Honda | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus nana Carrière | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus napalensis (Wall.) M.A. Lawson | Accepted |  | TRO | 
	
		| Rhamnus napeca L. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus neapolitana Link | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus neblinensis Maguire & Steyerm. | Accepted |  | WCSP (in review) | 
	
		| Rhamnus nelsonii Rose | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus nemoralis Salisb. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus nerija Spreng. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus nevadensis A.Nelson | Synonym |  | WCSP (in review) | 
	
		| Rhamnus nicolae Simonk. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus nigrescens Lauterb. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus nigricans Hand.-Mazz. | Accepted |  | TRO | 
	
		| Rhamnus ninglangensis Y.L. Chen | Accepted |  | TRO | 
	
		| Rhamnus nipponica (Makino) Grubov | Synonym |  | TRO | 
	
		| Rhamnus nitida P.H.Davis | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus nummularia Burm. f. | Synonym |  | TRO | 
	
		| Rhamnus obliqua Rose | Synonym |  | WCSP (in review) | 
	
		| Rhamnus obovatilimba Merr. & F.P. Metcalf | Synonym |  | TRO | 
	
		| Rhamnus obscura Schrank | Synonym |  | TRO | 
	
		| Rhamnus obtusifolia Hook. ex Torr. & A. Gray | Synonym |  | TRO | 
	
		| Rhamnus obtusissima Greene | Synonym |  | WCSP (in review) | 
	
		| Rhamnus occidentalis Howell | Synonym |  | WCSP (in review) | 
	
		| Rhamnus oenopolia L. | Synonym |  | TRO | 
	
		| Rhamnus oiwakensis Hayata | Synonym |  | TRO | 
	
		| Rhamnus oleifolius Hook. | Unresolved |  | TRO | 
	
		| Rhamnus oleoides L. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus oleoides subsp. atlantica Murb. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus oppositifolia Noronha | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus orbiculata Bornm. | Accepted |  | WCSP (in review) | 
	
		| Rhamnus oreigenes Hance | Synonym |  | TRO | 
	
		| Rhamnus oreodendron L.O. Williams | Accepted |  | TRO | 
	
		| Rhamnus ovalifolia G.Nicholson | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus ovatilimba Merr. & Metcalf | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus palaestina Boiss. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus paliurus L. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus pallasii Fisch. & C.A. Mey. | Accepted |  | TRO | 
	
		| Rhamnus pallasii subsp. sintenisii Browicz & Ziel. | Synonym |  | TRO | 
	
		| Rhamnus palmeri S.Watson | Synonym |  | WCSP (in review) | 
	
		| Rhamnus paniculata Thonn. ex DC. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus paniculatus Thonn. | Synonym |  | TRO | 
	
		| Rhamnus paniculiflorus C.K. Schneid. | Synonym |  | TRO | 
	
		| Rhamnus papuana Lauterb. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus parviflora Klein & Willd. ex Schult. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus parvifolia Bunge | Accepted |  | TRO | 
	
		| Rhamnus parvifolia var. tumetica (Grubov) N.W. Ma | Synonym |  | TRO | 
	
		| Rhamnus pasteurii H. Lév. | Synonym |  | TRO | 
	
		| Rhamnus pauciflora Hochst. ex A.Rich. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus pedunculata G.Nicholson | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus pendula Pamp. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus pentapetala Gilib. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus pentaphylla Jacq. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus pentapomica R.Parker | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus persica Boiss. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus persicifolia Moris | Accepted |  | WCSP (in review) | 
	
		| Rhamnus peruviana Lam. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus peruvianus Lam. | Synonym |  | TRO | 
	
		| Rhamnus petiolaris Boiss. & Balansa | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus philippinensis C.B.Rob. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus philyca Bubani | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus pianensis Kaneh. | Synonym |  | TRO | 
	
		| Rhamnus picenensis Duval-Jouve | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus pichleri C.K.Schneid. & Bornm. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus pilosa (Trel. ex Curran) Abrams | Synonym |  | TRO | 
	
		| Rhamnus pinetorum Standl. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus pinnata Sessé & Moc. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus pirifolia Greene | Synonym |  | TRO | 
	
		| Rhamnus × pissjaukovae O.A.Popova | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus polifolia Vahl | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus polygama Jacq. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus polymorpha (Reissek) Weberb. [Illegitimate] | Synonym |  | WCSP (in review) | 
	
		| Rhamnus polymorpha Turcz. | Synonym |  | TRO | 
	
		| Rhamnus polymorpha var. glabra Dusén | Synonym |  | WCSP (in review) | 
	
		| Rhamnus pompana M.C. Johnst. & L.A. Johnst. | Accepted |  | TRO | 
	
		| Rhamnus pontica Boiss. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus potaninii J.J. Vassil. | Synonym |  | TRO | 
	
		| Rhamnus pringlei Rose | Accepted |  | TRO | 
	
		| Rhamnus prinoides L'Hér. | Accepted |  | WCSP (in review) | 
	
		| Rhamnus procumbens Edgew. | Accepted |  | TRO | 
	
		| Rhamnus prostrata Jacq. | Accepted |  | TRO | 
	
		| Rhamnus prostrata R. Parker | Unresolved |  | TRO | 
	
		| Rhamnus prunifolia Sm. | Accepted |  | WCSP (in review) | 
	
		| Rhamnus pruniformis H.Lév. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus pseudofrangula H.Lév. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus psilocarpa Maguire & Steyerm. | Accepted |  | WCSP (in review) | 
	
		| Rhamnus pubescens (Ruiz & Pav.) Triana & Planch. [Illegitimate] | Synonym |  | WCSP (in review) | 
	
		| Rhamnus pubescens Poir. | Synonym |  | TRO | 
	
		| Rhamnus pubescens var. chrysophylla (Reissek) Kuntze | Synonym |  | WCSP (in review) | 
	
		| Rhamnus pubescens var. glabrescens Kuntze | Synonym |  | WCSP (in review) | 
	
		| Rhamnus pubescens var. grandifolia Perkins | Synonym |  | WCSP (in review) | 
	
		| Rhamnus pulogensis Merr. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus pumila Wulfen [Illegitimate] | Synonym |  | WCSP (in review) | 
	
		| Rhamnus pumila Turra | Accepted |  | WCSP (in review) | 
	
		| Rhamnus punctata Boiss. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus purandharensis Bhandari & Bhansali | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus purpurea Edgew. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus purpusii Brandegee [Illegitimate] | Synonym |  | WCSP (in review) | 
	
		| Rhamnus purshiana DC. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus purshiana var. anonifolia (Greene) Jeps. | Synonym |  | TRO | 
	
		| Rhamnus purshiana var. betulifolia (Greene) Cory | Synonym |  | TRO | 
	
		| Rhamnus purshiana var. californica (Eschsch.) Rehder | Synonym |  | TRO | 
	
		| Rhamnus purshiana var. tomentella (Benth.) K.L. Brandegee | Synonym |  | TRO | 
	
		| Rhamnus pusilla Ten. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus pyrella O.Schwarz | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus qianweiensis Z.Y.Zhu | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus quitensis Willd. ex Schult. | Synonym |  | TRO | 
	
		| Rhamnus racemosa Duhamel | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus ramiflorus Rich. | Unresolved |  | TRO | 
	
		| Rhamnus ramosissima Steud. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus recta Forssk. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus repens Page | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus retamilla Miers | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus retanilla Dombey ex DC. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus revoluta Rose | Synonym |  | WCSP (in review) | 
	
		| Rhamnus rhodesica Suess. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus rhododendriphylla Y.L.Chen & P.K.Chou | Synonym |  | WCSP (in review) | 
	
		| Rhamnus rhodopea Velen. | Accepted |  | WCSP (in review) | 
	
		| Rhamnus riojae Perkins | Synonym |  | WCSP (in review) | 
	
		| Rhamnus robusta auct. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus rosei M.C. Johnst. & L.A. Johnst. | Accepted |  | TRO | 
	
		| Rhamnus rosthornii E. Pritz. | Accepted |  | TRO | 
	
		| Rhamnus rotundifolia Dum.Cours. [Illegitimate] | Synonym |  | WCSP (in review) | 
	
		| Rhamnus roylei K.Koch | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus rubra Greene | Synonym |  | WCSP (in review) | 
	
		| Rhamnus rubra var. modocensis (C.B.Wolf) McMinn | Synonym |  | WCSP (in review) | 
	
		| Rhamnus rubra subsp. modocensis C.B.Wolf | Synonym |  | WCSP (in review) | 
	
		| Rhamnus rubra subsp. nevadensis (A.Nelson) C.B.Wolf | Synonym |  | WCSP (in review) | 
	
		| Rhamnus rubra var. obtusissima (Greene) Jeps. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus rubra subsp. obtusissima (Greene) C.B.Wolf | Synonym |  | WCSP (in review) | 
	
		| Rhamnus rubra subsp. yosemitana C.B.Wolf | Synonym |  | WCSP (in review) | 
	
		| Rhamnus rubra var. yosemitana (C.B.Wolf) McMinn | Synonym |  | WCSP (in review) | 
	
		| Rhamnus ruffa Vell. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus ruffus Vell. | Synonym |  | TRO | 
	
		| Rhamnus rugulosa Hemsl. | Accepted |  | TRO | 
	
		| Rhamnus rugulosa var. chekiangensis (Cheng) Y.L. Chen & P.K. Chou | Accepted |  | TRO | 
	
		| Rhamnus rugulosa var. rugulosa | Accepted |  | TRO | 
	
		| Rhamnus rumeliacea Friv. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus rupestris Scop. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus sagorskii Bornm. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus sanguinea Pers. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus sanguino Ortega | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus saquil Dombey ex Brongn. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus sarcomphalus L. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus sargentiana C.K. Schneid. | Accepted |  | TRO | 
	
		| Rhamnus saxatilis Jacq. | Accepted |  | WCSP (in review) | 
	
		| Rhamnus saxatilis subsp. tinctoria Nyman | Accepted |  | WCSP (in review) | 
	
		| Rhamnus scandens Hill | Synonym |  | TRO | 
	
		| Rhamnus schlechteri Lauterb. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus schneideri H. Lév. & Vaniot | Accepted |  | TRO | 
	
		| Rhamnus schneideri var. manshurica (Nakai) Nakai | Accepted |  | TRO | 
	
		| Rhamnus schneideri var. schneideri | Accepted |  | TRO | 
	
		| Rhamnus × schurii Kárpáti | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus scopulorum (M.E. Jones) C.B. Wolf | Accepted |  | TRO | 
	
		| Rhamnus sectipetala Mart. [Invalid] | Synonym |  | WCSP (in review) | 
	
		| Rhamnus sectipetala Mart. ex Reissek | Synonym |  | TRO | 
	
		| Rhamnus sempervirens Dum.Cours. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus senamensis Koidz. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus senticosa Kunth | Synonym |  | TRO | 
	
		| Rhamnus seravschanica (Kom.) Kamelin | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus serpyllacea Greuter & Burdet | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus serpyllifolia H. Lév. | Accepted |  | TRO | 
	
		| Rhamnus serrata Humb. & Bonpl. ex Willd. | Accepted |  | TRO | 
	
		| Rhamnus serrata var. scopulorum M.E. Jones | Synonym |  | TRO | 
	
		| Rhamnus serrulata Kunth | Synonym |  | TRO | 
	
		| Rhamnus sharpii M.C.Johnst. & L.A.Johnst. | Accepted |  | WCSP (in review) | 
	
		| Rhamnus shortii Nutt. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus shozyoensis Nakai | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus sibirica G.Nicholson | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus sibthorpiana Schult. | Accepted |  | WCSP (in review) | 
	
		| Rhamnus sicula L. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus sieboldiana Makino | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus sinensis Ser. ex Rondot | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus sintenisii Rech. f. | Accepted |  | TRO | 
	
		| Rhamnus sipapoensis Steyerm. | Accepted |  | WCSP (in review) | 
	
		| Rhamnus smithii Greene | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus smithii subsp. fasciculata (Greene) C.B. Wolf | Unresolved |  | TRO | 
	
		| Rhamnus songorica Gontsch. | Accepted |  | TRO | 
	
		| Rhamnus soporifera Lour. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus spartium Dombey ex Schult. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus spathulifolia Fisch. & C.A.Mey. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus sphaerosperma Sw. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus sphaerosperma var. longipes M.C.Johnst. & L.A.Johnst. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus sphaerosperma var. mesoamericana L.A.Johnston & M.C.Johnst. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus sphaerosperma var. polymorpha (Reissek) M.C.Johnst. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus sphaerosperma var. pubescens M.C.Johnst. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus sphenophylla Borbás | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus spicata Sessé & Moc. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus spiciflora A.Rich. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus spina-christi L. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus spinosa Gilib. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus spinosus Hemsl. | Unresolved |  | TRO | 
	
		| Rhamnus splendens Blume | Synonym |  | TRO | 
	
		| Rhamnus staddo A.Rich. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus standleyana C.B. Wolf | Accepted |  | TRO | 
	
		| Rhamnus stenophylla Standl. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus subapetala Merr. | Accepted |  | TRO | 
	
		| Rhamnus subsempervirens K.Koch | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus sumatrensis Ridl. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus sumbawana Lauterb. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus surinamensis Scop. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus surotatensis Gentry | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus sylvatica M.Serres | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus talanae Blanco | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus tangutica J.J. Vassil. | Accepted |  | TRO | 
	
		| Rhamnus taquetii H.Lév. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus teidis Brouss. ex Schult. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus terminalis Buch.-Ham. ex D.Don | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus terniflorus DC. | Unresolved |  | TRO | 
	
		| Rhamnus tetragona L. f. | Synonym |  | TRO | 
	
		| Rhamnus texensis Torr. & A. Gray | Synonym |  | TRO | 
	
		| Rhamnus thea Osbeck | Synonym |  | TRO | 
	
		| Rhamnus theezans L. | Synonym |  | TRO | 
	
		| Rhamnus thymifolia Bornm. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus timoriensis Zipp. ex Koord. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus tinctoria L. | Synonym |  | WCSP | 
	
		| Rhamnus tinctoria Waldst. & Kit. [Illegitimate] | Synonym |  | WCSP (in review) | 
	
		| Rhamnus tomentella Benth. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus tomentella subsp. crassifolia (Jeps.) Sawyer | Synonym |  | WCSP (in review) | 
	
		| Rhamnus tomentella subsp. cuspidata (Greene) Sawyer | Synonym |  | WCSP (in review) | 
	
		| Rhamnus tomentella subsp. ursina (Greene) Sawyer | Synonym |  | WCSP (in review) | 
	
		| Rhamnus tonkinensis Pit. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus tortuosa Somm. & Levier | Accepted |  | TRO | 
	
		| Rhamnus transsilvanica Schur | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus triflora Sessé & Moc. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus trigyna Buch.-Ham. ex D.Don | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus trinervis Cav. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus tripartita Ucria | Synonym |  | WCSP (in review) | 
	
		| Rhamnus tripolitana Engl. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus triquetra (Wall.) Brandis | Accepted |  | TRO | 
	
		| Rhamnus tumetica Grubov | Synonym |  | TRO | 
	
		| Rhamnus turbinata Sessé & Moc. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus tzekweiensis Y.L. Chen & P.K. Chou | Accepted |  | TRO | 
	
		| Rhamnus uasuriensis J.J.Vassil. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus uhligii Engl. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus ulei Pilg. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus ulmoides Gueldenst. ex Ledeb. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus umbellatus Cav. | Synonym |  | TRO | 
	
		| Rhamnus undulata Simonk. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus uninervis Dulac | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus ursina Greene | Synonym |  | WCSP (in review) | 
	
		| Rhamnus ussuriensis J.J. Vassil. | Accepted |  | TRO | 
	
		| Rhamnus utilis Decne. | Accepted |  | TRO | 
	
		| Rhamnus utilis f. glabra Rehder | Synonym |  | TRO | 
	
		| Rhamnus utilis var. hypochrysa (C.K. Schneid.) Rehder | Accepted |  | TRO | 
	
		| Rhamnus utilis var. multinervis Y.Q. Zhu & D.K. Zang | Synonym |  | TRO | 
	
		| Rhamnus utilis var. utilis | Accepted |  | TRO | 
	
		| Rhamnus valentina Willd. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus velutina Boiss. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus velutina J. Anthony | Synonym |  | TRO | 
	
		| Rhamnus venosa Poir. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus villarsii Link | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus villarsii Jord. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus virgata Roxb. | Accepted |  | TRO | 
	
		| Rhamnus virgata var. aprica Maxim. | Synonym |  | TRO | 
	
		| Rhamnus virgata var. hirsuta (Wight & Arn.) Y.L. Chen & P.K. Chou | Accepted |  | TRO | 
	
		| Rhamnus virgata var. mongolica Maxim. | Synonym |  | TRO | 
	
		| Rhamnus virgata var. parvifolia Maxim. | Synonym |  | TRO | 
	
		| Rhamnus virgata var. sylvestris Maxim. | Synonym |  | TRO | 
	
		| Rhamnus virgata var. virgata | Accepted |  | TRO | 
	
		| Rhamnus virgatiformes | Unresolved |  | TRO | 
	
		| Rhamnus virginica Page | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus viridifolia Liou | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus vitiensis Benth. | Synonym |  | TRO | 
	
		| Rhamnus vitis-idaea Burm.f. | Synonym |  | WCSP | 
	
		| Rhamnus volubilis L. f. | Synonym |  | TRO | 
	
		| Rhamnus vulgaris Pers. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus wendtii Ishiki | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus wichellii K.Koch | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus wicklia K.Koch | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus wightii Wight & Arn. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus wihhor Lucé | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus willdenowiana Schult. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus wilsonii C.K. Schneid. | Accepted |  | TRO | 
	
		| Rhamnus × woloszczakii Kárpáti | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus wulfenii (Rchb.) Hoppe | Synonym |  | WCSP (in review) | 
	
		| Rhamnus wumingensis Y.L. Chen & P.K. Chou | Accepted |  | TRO | 
	
		| Rhamnus xanthocarpa K.Koch | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus xizangensis Y.L. Chen & P.K. Chou | Accepted |  | TRO | 
	
		| Rhamnus xylopyra Retz. | Unresolved |  | WCSP (in review) | 
	
		| Rhamnus yoshinoi Makino | Accepted |  | TRO | 
	
		| Rhamnus yunnanensis Heppeler | Synonym |  | TRO | 
	
		| Rhamnus zeyheri Sond. | Synonym |  | TRO | 
	
		| Rhamnus zizyphoides Sol. ex Spreng. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus zizyphus L. | Synonym |  | WCSP (in review) | 
	
		| Rhamnus zonulata Blanco | Unresolved |  | WCSP (in review) |