| Orthosiphon adenocaulis A.J.Paton & Hedge |
Accepted |
 |
WCSP |
| Orthosiphon adornatus Briq. |
Synonym |
 |
WCSP |
| Orthosiphon adscendens Benth. ex Sweet |
Synonym |
 |
WCSP |
| Orthosiphon affinis N.E.Br. |
Synonym |
 |
WCSP |
| Orthosiphon albiflorus N.E.Br. |
Synonym |
 |
WCSP |
| Orthosiphon allenii (C.H.Wright) Codd |
Accepted |
 |
WCSP |
| Orthosiphon amabilis (Bremek.) Codd |
Synonym |
 |
WCSP |
| Orthosiphon ambiguus Bolus |
Synonym |
 |
WCSP |
| Orthosiphon angolensis G.Taylor |
Synonym |
 |
WCSP |
| Orthosiphon argenteus A.J.Paton & Hedge |
Accepted |
 |
WCSP |
| Orthosiphon aristatus (Blume) Miq. |
Accepted |
 |
WCSP |
| Orthosiphon aristatus var. aristatus |
Accepted |
 |
WCSP |
| Orthosiphon asperus (Roth) Benth. ex Sweet |
Synonym |
 |
WCSP |
| Orthosiphon atacorensis A.Chev. [Invalid] |
Synonym |
 |
WCSP |
| Orthosiphon australis Vatke |
Synonym |
 |
WCSP |
| Orthosiphon bartsioides Baker |
Synonym |
 |
WCSP |
| Orthosiphon biflorus A.J.Paton & Hedge |
Accepted |
 |
WCSP |
| Orthosiphon bigibber Chiov. [Unplaced] |
Unresolved |
 |
WCSP |
| Orthosiphon bodinieri Vaniot |
Synonym |
 |
WCSP |
| Orthosiphon bolusii N.E.Br. |
Synonym |
 |
WCSP |
| Orthosiphon brachystemon Deflers [Unplaced] |
Unresolved |
 |
WCSP |
| Orthosiphon bracteatus Wight |
Synonym |
 |
WCSP |
| Orthosiphon bracteosus (Benth.) Baker |
Synonym |
 |
WCSP |
| Orthosiphon brevicaulis Baker |
Synonym |
 |
WCSP |
| Orthosiphon breviflorus Vatke [Unplaced] |
Unresolved |
 |
WCSP |
| Orthosiphon buchananii (Baker) M.R.Ashby |
Synonym |
 |
WCSP |
| Orthosiphon bullosus Chiov. |
Accepted |
 |
WCSP |
| Orthosiphon buryi S.Moore |
Synonym |
 |
WCSP |
| Orthosiphon calaminthoides Baker |
Synonym |
 |
WCSP |
| Orthosiphon cameronii Baker |
Synonym |
 |
WCSP |
| Orthosiphon canescens Gürke |
Synonym |
 |
WCSP |
| Orthosiphon capitatus Benth. |
Synonym |
 |
WCSP |
| Orthosiphon chevalieri Briq. [Unplaced] |
Unresolved |
 |
WCSP |
| Orthosiphon cladotrichos Gürke |
Accepted |
 |
WCSP |
| Orthosiphon cleistocalyx Vatke |
Synonym |
 |
WCSP |
| Orthosiphon coloratus Vatke |
Synonym |
 |
WCSP |
| Orthosiphon comosus Wight ex Benth. |
Synonym |
 |
WCSP |
| Orthosiphon comosus Baker [Illegitimate] |
Synonym |
 |
WCSP |
| Orthosiphon cuanzae (I.M.Johnst.) A.J.Paton |
Accepted |
 |
WCSP |
| Orthosiphon debilis Hemsl. |
Synonym |
 |
WCSP |
| Orthosiphon decipiens N.E.Br. |
Synonym |
 |
WCSP |
| Orthosiphon degasparisianum Buscal. & Muschl. |
Synonym |
 |
WCSP |
| Orthosiphon delavayi H.Lév. [Unplaced] |
Unresolved |
 |
WCSP |
| Orthosiphon depauperatum A.Terracc. [Unplaced] |
Unresolved |
 |
WCSP |
| Orthosiphon diffusus (Benth.) Benth. |
Synonym |
 |
WCSP |
| Orthosiphon discolor A.J.Paton & Hedge |
Accepted |
 |
WCSP |
| Orthosiphon dissimilis N.E.Br. [Unplaced] |
Unresolved |
 |
WCSP |
| Orthosiphon dissitifolius Baker |
Synonym |
 |
WCSP |
| Orthosiphon ehrenbergii Vatke |
Synonym |
 |
WCSP |
| Orthosiphon ellenbeckii Gürke |
Synonym |
 |
WCSP |
| Orthosiphon elliottii Baker |
Synonym |
 |
WCSP |
| Orthosiphon ellipticus A.J.Paton & Hedge |
Accepted |
 |
WCSP |
| Orthosiphon emirnensis Baker |
Synonym |
 |
WCSP |
| Orthosiphon engleri Perkins |
Synonym |
 |
WCSP |
| Orthosiphon exilis A.J.Paton & Hedge |
Accepted |
 |
WCSP |
| Orthosiphon ferrugineus Balf.f. |
Accepted |
 |
WCSP |
| Orthosiphon foliosus (S.Moore) N.E.Br. |
Synonym |
 |
WCSP |
| Orthosiphon fruticosus Codd |
Accepted |
 |
WCSP |
| Orthosiphon gerrardii N.E.Br. |
Synonym |
 |
WCSP |
| Orthosiphon glabratus Benth. |
Synonym |
 |
WCSP |
| Orthosiphon glabratus var. parviflorus (Benth.) Gamble |
Synonym |
 |
WCSP |
| Orthosiphon glabrescens Vaniot |
Synonym |
 |
WCSP |
| Orthosiphon glandulosus C.E.C.Fisch. |
Accepted |
 |
WCSP |
| Orthosiphon glutinosus Chiov. |
Synonym |
 |
WCSP |
| Orthosiphon gofensis S.Moore |
Synonym |
 |
WCSP |
| Orthosiphon grandiflorus A.Terracc. [Unplaced] |
Unresolved |
 |
WCSP |
| Orthosiphon grandiflorus Bold. [Illegitimate] |
Synonym |
 |
WCSP |
| Orthosiphon hanningtonii (Baker) A.J.Paton |
Accepted |
 |
WCSP |
| Orthosiphon helenae Buscal. & Muschl. |
Synonym |
 |
WCSP |
| Orthosiphon heterochrous Briq. |
Synonym |
 |
WCSP |
| Orthosiphon heterophyllus Gürke |
Synonym |
 |
WCSP |
| Orthosiphon hildebrandtii Vatke |
Synonym |
 |
WCSP |
| Orthosiphon hildebrandtii Baker [Illegitimate] |
Synonym |
 |
WCSP |
| Orthosiphon hispidus Benth. |
Synonym |
 |
WCSP |
| Orthosiphon hockii De Wild. |
Synonym |
 |
WCSP |
| Orthosiphon holubii N.E.Br. |
Synonym |
 |
WCSP |
| Orthosiphon homblei De Wild. |
Synonym |
 |
WCSP |
| Orthosiphon humbertii Danguy |
Accepted |
 |
WCSP |
| Orthosiphon humilis N.E.Br. |
Synonym |
 |
WCSP |
| Orthosiphon incisus A.Chev. |
Synonym |
 |
WCSP |
| Orthosiphon inconcinnus Briq. |
Synonym |
 |
WCSP |
| Orthosiphon incurvus Benth. |
Accepted |
 |
WCSP |
| Orthosiphon inodorus K.D.Koenig ex Hook.f. |
Synonym |
 |
WCSP |
| Orthosiphon iodocalyx Briq. |
Synonym |
 |
WCSP |
| Orthosiphon johnstonii Baker |
Synonym |
 |
WCSP |
| Orthosiphon kelleri Briq. |
Synonym |
 |
WCSP |
| Orthosiphon kirkii Baker |
Synonym |
 |
WCSP |
| Orthosiphon labiatus N.E.Br. |
Synonym |
 |
WCSP |
| Orthosiphon lanatus Doan [Unplaced] |
Unresolved |
 |
WCSP |
| Orthosiphon lanatus Doan ex Suddee & A.J.Paton |
Accepted |
 |
WCSP |
| Orthosiphon lanceolatus Gürke |
Synonym |
 |
WCSP |
| Orthosiphon lanceolatus Y.Z.Sun [Illegitimate] |
Synonym |
 |
WCSP |
| Orthosiphon latidens N.E.Br. |
Synonym |
 |
WCSP |
| Orthosiphon laurentii De Wild. |
Synonym |
 |
WCSP |
| Orthosiphon liebrechtsiauum Briq. |
Synonym |
 |
WCSP |
| Orthosiphon linearis Benth. |
Synonym |
 |
WCSP |
| Orthosiphon longipes Baker |
Synonym |
 |
WCSP |
| Orthosiphon macranthus Gürke |
Synonym |
 |
WCSP |
| Orthosiphon macrocheilus M.R.Ashby |
Synonym |
 |
WCSP |
| Orthosiphon macrophyllus (Gürke) N.E.Br. |
Synonym |
 |
WCSP |
| Orthosiphon mairei H.Lév. |
Synonym |
 |
WCSP |
| Orthosiphon malosanus Baker |
Synonym |
 |
WCSP |
| Orthosiphon marmoritis (Hance) Dunn |
Synonym |
 |
WCSP |
| Orthosiphon marquesii Briq. |
Synonym |
 |
WCSP |
| Orthosiphon menthifolius Briq. |
Synonym |
 |
WCSP |
| Orthosiphon merkeri Gürke [Unplaced] |
Unresolved |
 |
WCSP |
| Orthosiphon messinensis R.D.Good |
Synonym |
 |
WCSP |
| Orthosiphon minimiflorus Chiov. [Unplaced] |
Unresolved |
 |
WCSP |
| Orthosiphon miserabilis A.J.Paton & Hedge |
Accepted |
 |
WCSP |
| Orthosiphon mollis Baker |
Synonym |
 |
WCSP |
| Orthosiphon mombasicus Baker |
Synonym |
 |
WCSP |
| Orthosiphon mossianus R.D.Good |
Synonym |
 |
WCSP |
| Orthosiphon muddii N.E.Br. |
Synonym |
 |
WCSP |
| Orthosiphon natalensis Gürke |
Synonym |
 |
WCSP |
| Orthosiphon neglectus Briq. |
Synonym |
 |
WCSP |
| Orthosiphon newtonii Briq. |
Accepted |
 |
WCSP |
| Orthosiphon nigripunctatus G.Taylor |
Accepted |
 |
WCSP |
| Orthosiphon nyasicus Baker |
Synonym |
 |
WCSP |
| Orthosiphon obbiadensis Chiov. |
Synonym |
 |
WCSP |
| Orthosiphon oblongifolius Lanza |
Synonym |
 |
WCSP |
| Orthosiphon obscurus Briq. |
Synonym |
 |
WCSP |
| Orthosiphon ornatus (S.Moore) R.D.Good |
Synonym |
 |
WCSP |
| Orthosiphon pallidus Royle ex Benth. |
Accepted |
 |
WCSP |
| Orthosiphon parishii Prain |
Accepted |
 |
WCSP |
| Orthosiphon parvifolius Vatke |
Accepted |
 |
WCSP |
| Orthosiphon pascuensis G.Taylor |
Synonym |
 |
WCSP |
| Orthosiphon persimilis N.E.Br. |
Synonym |
 |
WCSP |
| Orthosiphon petiolaris Miq. |
Synonym |
 |
WCSP |
| Orthosiphon petrensis Hiern |
Synonym |
 |
WCSP |
| Orthosiphon physocalycinus A.Rich. |
Synonym |
 |
WCSP |
| Orthosiphon pretoriae Gürke |
Synonym |
 |
WCSP |
| Orthosiphon pseudoaristatus Suddee |
Accepted |
 |
WCSP |
| Orthosiphon pseudornatus R.D.Good |
Synonym |
 |
WCSP |
| Orthosiphon pseudorubicundus Lingelsh. & Borza |
Synonym |
 |
WCSP |
| Orthosiphon pseudoserratus M.R.Ashby |
Synonym |
 |
WCSP |
| Orthosiphon rabaiensis S.Moore |
Synonym |
 |
WCSP |
| Orthosiphon reflexus (Ehrenb. ex Schweinf.) Vatke |
Synonym |
 |
WCSP |
| Orthosiphon rehmannii Gürke |
Synonym |
 |
WCSP |
| Orthosiphon retinervis Briq. |
Synonym |
 |
WCSP |
| Orthosiphon rhodesianus S.Moore |
Synonym |
 |
WCSP |
| Orthosiphon robustus Hook.f. |
Accepted |
 |
WCSP |
| Orthosiphon rogersii N.E.Br. |
Synonym |
 |
WCSP |
| Orthosiphon roseus Briq. |
Synonym |
 |
WCSP |
| Orthosiphon rotundifolius Doan ex Suddee & A.J.Paton |
Accepted |
 |
WCSP |
| Orthosiphon ruber A.J.Paton & Hedge |
Accepted |
 |
WCSP |
| Orthosiphon rubicundus (D.Don) Benth. |
Accepted |
 |
WCSP |
| Orthosiphon rubicundus var. canescens Benth. |
Synonym |
 |
WCSP |
| Orthosiphon rubicundus var. hainanensis Y.Z.Sun ex C.Y.Wu |
Accepted |
 |
WCSP |
| Orthosiphon rubicundus var. hohenackeri Hook.f. |
Synonym |
 |
WCSP |
| Orthosiphon rubicundus var. macrocarpus Prain |
Synonym |
 |
WCSP |
| Orthosiphon rubicundus var. mollissimus Benth. |
Synonym |
 |
WCSP |
| Orthosiphon rubicundus var. rigidus Benth. |
Synonym |
 |
WCSP |
| Orthosiphon rubicundus var. rubicundus |
Accepted |
 |
WCSP |
| Orthosiphon rufinervis G.Taylor |
Synonym |
 |
WCSP |
| Orthosiphon salagensis Baker |
Synonym |
 |
WCSP |
| Orthosiphon sarmentosus A.J.Paton & Hedge |
Accepted |
 |
WCSP |
| Orthosiphon scabridus Briq. |
Synonym |
 |
WCSP |
| Orthosiphon scapiger Benth. |
Accepted |
 |
WCSP |
| Orthosiphon scedastophyllus A.J.Paton |
Accepted |
 |
WCSP |
| Orthosiphon schimperi Benth. |
Accepted |
 |
WCSP |
| Orthosiphon schinzianus Briq. |
Synonym |
 |
WCSP |
| Orthosiphon schliebenii A.J.Paton |
Unresolved |
 |
WCSP (in review) |
| Orthosiphon secundiflorus Baker |
Synonym |
 |
WCSP |
| Orthosiphon serratus Schltr. |
Synonym |
 |
WCSP |
| Orthosiphon shirensis Baker |
Synonym |
 |
WCSP |
| Orthosiphon silvicola Gürke |
Synonym |
 |
WCSP |
| Orthosiphon sinensis Hemsl. |
Synonym |
 |
WCSP |
| Orthosiphon somalensis Vatke |
Synonym |
 |
WCSP |
| Orthosiphon spicatus (Thunb.) Backer, Bakh.f. & Steenis [Illegitimate] |
Synonym |
 |
WCSP |
| Orthosiphon spicatus Benth. |
Synonym |
 |
WCSP |
| Orthosiphon spiralis (Lour.) Merr. |
Synonym |
 |
WCSP |
| Orthosiphon stamineus Benth. |
Synonym |
 |
WCSP |
| Orthosiphon stenophyllus Gürke |
Synonym |
 |
WCSP |
| Orthosiphon stuhlmannii Gürke |
Synonym |
 |
WCSP |
| Orthosiphon subvelutinus Gürke |
Synonym |
 |
WCSP |
| Orthosiphon suffrutescens (Schumach.) J.K.Morton |
Synonym |
 |
WCSP |
| Orthosiphon tagawae Murata |
Synonym |
 |
WCSP |
| Orthosiphon tenuiflorus Benth. |
Synonym |
 |
WCSP |
| Orthosiphon tenuifrons Briq. |
Synonym |
 |
WCSP |
| Orthosiphon teucriifolius (Hochst.) N.E.Br. |
Synonym |
 |
WCSP |
| Orthosiphon teucriifolius var. galpinianus N.E. Br. |
Synonym |
 |
TRO |
| Orthosiphon teucriifolius var. teucriifolius Ashby |
Synonym |
 |
TRO |
| Orthosiphon thorncroftii N.E.Br. |
Synonym |
 |
WCSP |
| Orthosiphon thymiflorus (Roth) Sleesen |
Accepted |
 |
WCSP |
| Orthosiphon thymiflorus var. viscosus (Benth.) Sleesen |
Synonym |
 |
WCSP |
| Orthosiphon tomentosus Benth. |
Synonym |
 |
WCSP |
| Orthosiphon tomentosus De Wild. [Illegitimate] |
Synonym |
 |
WCSP |
| Orthosiphon tomentosus var. glabratus (Benth.) Hook.f. |
Synonym |
 |
WCSP |
| Orthosiphon tomentosus var. parviflorus Benth. |
Synonym |
 |
WCSP |
| Orthosiphon tomentosus var. rubiginosus C.B.Clarke ex Hook.f. |
Synonym |
 |
WCSP |
| Orthosiphon tomentosus var. viscosus (Benth.) Hook.f. |
Synonym |
 |
WCSP |
| Orthosiphon transvaalensis Schltr. |
Synonym |
 |
WCSP |
| Orthosiphon tristis Benth. |
Synonym |
 |
WCSP |
| Orthosiphon truncatus Doan ex Suddee & A.J.Paton |
Accepted |
 |
WCSP |
| Orthosiphon tuberosus Briq. |
Synonym |
 |
WCSP |
| Orthosiphon tubiformis R.D.Good |
Synonym |
 |
WCSP |
| Orthosiphon tubulascens Briq. |
Synonym |
 |
WCSP |
| Orthosiphon unyikensis Gürke |
Synonym |
 |
WCSP |
| Orthosiphon usambarensis Gürke |
Synonym |
 |
WCSP |
| Orthosiphon varians N.E.Br. |
Synonym |
 |
WCSP |
| Orthosiphon velteri Doan [Invalid] |
Synonym |
 |
WCSP |
| Orthosiphon vernalis Codd |
Accepted |
 |
WCSP |
| Orthosiphon viatorum S.Moore |
Synonym |
 |
WCSP |
| Orthosiphon villosus Briq. |
Synonym |
 |
WCSP |
| Orthosiphon violaceus Briq. |
Accepted |
 |
WCSP |
| Orthosiphon virgatus (D.Don) Benth. |
Synonym |
 |
WCSP |
| Orthosiphon viscosus Benth. |
Synonym |
 |
WCSP |
| Orthosiphon wakefieldii Baker |
Synonym |
 |
WCSP |
| Orthosiphon wattii Prain |
Accepted |
 |
WCSP |
| Orthosiphon welwitschii Rolfe |
Synonym |
 |
WCSP |
| Orthosiphon wilmsii Gürke |
Synonym |
 |
WCSP |
| Orthosiphon wilmsii var. komghensis N.E. Br. |
Synonym |
 |
TRO |
| Orthosiphon wilmsii var. wilmsii N.E. Br. |
Synonym |
 |
TRO |
| Orthosiphon woodii Gürke |
Synonym |
 |
WCSP |
| Orthosiphon wulfenioides (Diels) Hand.-Mazz. |
Accepted |
 |
WCSP |
| Orthosiphon wulfenioides var. wulfenioides |
Accepted |
 |
WCSP |
| Orthosiphon xylorrhizus Briq. |
Synonym |
 |
WCSP |