Orthosiphon americanus Harley & A.J.Paton species accepted

Orthosiphon thymiflorus var. viscosus (Benth.) Sleesen variety synonym

Orthosiphon tomentosus var. parviflorus Benth. variety synonym

Orthosiphon truncatus Doan ex Suddee & A.J.Paton species accepted

Orthosiphon liebrechtsianum Briq. species accepted

Orthosiphon glabratus var. africanus Benth. variety synonym

Orthosiphon grandiflorus A.Terracc. species accepted

Orthosiphon bullosus Chiov. species accepted

Orthosiphon rotundifolius Doan ex Suddee & A.J.Paton species accepted

Orthosiphon aristatus (Blume) Miq. species accepted

Orthosiphon tomentosus var. viscosus (Benth.) Hook.f. variety synonym

Coleus wulfenioides Diels species synonym

Lumnitzera rubicunda (D.Don) Spreng. species synonym

Icomum hockii DeWild. species synonym

Orthosiphon wattii Prain species accepted

Orthosiphon wulfenioides (Diels) Hand.-Mazz. species accepted

Orthosiphon wilmsii Gürke species synonym

Orthosiphon viscosus Benth. species synonym

Orthosiphon verticillatus B.Heyne ex Hook.f., 1885 species accepted

Orthosiphon vernalis Codd species accepted

Orthosiphon usambarensis Gürke species synonym

Orthosiphon truncatus Doan, 1936 species doubtful

Orthosiphon thymiflorus (Roth) Sleesen species accepted

Orthosiphon tenuifrons Briq. species synonym

Orthosiphon tagawai Murata, 1970 species accepted

Orthosiphon suffrutescens (Schumach.) J.K.Morton species synonym

Orthosiphon stuhlmannii Gürke species synonym

Orthosiphon somalensis Vatke species synonym

Orthosiphon sinensis Hemsl. species synonym

Orthosiphon silvicola Gürke species synonym

Orthosiphon shirensis Baker species synonym

Orthosiphon schimperi Benth. species accepted

Orthosiphon scedastophyllus A.J.Paton species accepted

Orthosiphon scapiger Benth. species accepted

Orthosiphon sarmentosus A.J.Paton & Hedge species accepted

Orthosiphon rufinervis G.Taylor species accepted

Orthosiphon rubicundus (D.Don) Benth. species accepted

Orthosiphon ruber A.J.Paton & Hedge species accepted

Orthosiphon rotundifolius Doan, 1936 species doubtful

Orthosiphon roseus Briq. species synonym

Orthosiphon robustus Hook.f. species accepted

Orthosiphon reflexus (Ehrenb. ex Schweinf.) Vatke species synonym

Orthosiphon rabaiensis S.Moore species synonym

Orthosiphon pseudoaristatus Suddee species accepted

Orthosiphon petiolaris Miq. species synonym

Orthosiphon parvifolius Vatke species accepted

Orthosiphon parishii Prain species accepted

Orthosiphon pallidus Royle ex Benth. species accepted

Orthosiphon nigripunctatus G.Taylor species accepted

Orthosiphon newtonii Briq. species accepted

Orthosiphon neglectus Briq. species synonym

Orthosiphon mombasicus Baker species synonym

Orthosiphon molle Baker, 1895 species accepted

Orthosiphon miserabilis A.J.Paton & Hedge species accepted

Orthosiphon minimiflorus Chiov. species doubtful

Orthosiphon merkeri Gürke species synonym

Orthosiphon marmoritis (Hance) Dunn species synonym

Orthosiphon macrocheilus M.R.Ashby species synonym

Orthosiphon longipes Baker species synonym

Orthosiphon liebrechtsiauum Briq. species synonym

Orthosiphon lanatus Doan species doubtful

Orthosiphon johnstonii Baker species synonym

Orthosiphon iodocalyx Briq. species synonym

Orthosiphon inodorus J.Koenig ex Hook.f. species synonym

Orthosiphon incurvus Benth. species accepted

Orthosiphon inconcinnus Briq. species synonym

Orthosiphon incisus A.Chev. species synonym

Orthosiphon humbertii Danguy species accepted

Orthosiphon hildebrandtii Baker species heterotypic synonym

Orthosiphon hanningtonii (Baker) A.J.Paton species accepted

Orthosiphon glandulosus C.E.C.Fisch. species accepted

Orthosiphon glabratus Benth. species synonym

Orthosiphon fruticosus Codd species accepted

Orthosiphon ferrugineus Balf.f. species accepted

Orthosiphon exilis A.J.Paton & Hedge species accepted

Orthosiphon ellipticus A.J.Paton & Hedge species accepted

Orthosiphon ehrenbergii Vatke species synonym

Orthosiphon dissimilis N.E.Br. species synonym

Orthosiphon discolor A.J.Paton & Hedge species accepted

Orthosiphon delavayi H.Lév. species doubtful

Orthosiphon cuanzae (I.M.Johnst.) A.J.Paton species accepted

Orthosiphon comosus Wight & Ramaswami species accepted

Orthosiphon coloratus Vatke species synonym

Orthosiphon cladotrichos Gürke species accepted

Orthosiphon chevalieri Briq. species synonym

Orthosiphon calaminthoides Baker species synonym

Orthosiphon buryi S.Moore species synonym

Orthosiphon bulbosus Chiov., 1915 species accepted

Orthosiphon buchananii (Baker) M.R.Ashby species synonym

Orthosiphon brachystemon Deflers species doubtful

Orthosiphon biflorus A.J.Paton & Hedge species accepted

Orthosiphon australis Vatke species synonym

Orthosiphon heterochrous Briq. species synonym

Orthosiphon argenteus A.J.Paton & Hedge species accepted

Orthosiphon allenii (C.H.Wright) Codd species accepted

Orthosiphon adenocaulis A.J.Paton & Hedge species accepted

Ocimum triste Roth species synonym

Ocimum thymiflorum Roth species synonym

Ocimum suffrutescens Schumach. species synonym

Ocimum somaliense Briq. species synonym

Ocimum reflexum Ehrenb. ex Schweinf. species synonym

Ocimum hanningtonii Baker species synonym

Ocimum cuanzae I.M.Johnst. species synonym

Icomum hockii De Wild. species synonym

Ocimum buchananii Baker species synonym

Ocimum aristatum Blume species synonym

Plectranthus tristis (Roth) Spreng. species synonym

Plectranthus thymiflorus (Roth) Spreng. species synonym

Plectranthus rubicundus D.Don species synonym

Plectranthus marmoritis Hance species synonym

Orthosiphon violaceus Briq. species accepted

Orthosiphon viatorum S.Moore species synonym

Plectranthus bolusii T.Cooke species synonym

Orthosiphon tomentosus var. rubiginosus C.B.Clarke ex Hook.f. variety synonym

Orthosiphon lanatus Doan ex Suddee & A.J.Paton species accepted

Orthosiphon inodorus J.Koenig species homotypic synonym

Orthosiphon tomentosus var. glabratus (Benth.) Hook.f. variety synonym

Ocimum coloratum Hochst. species heterotypic synonym

Orthosiphon grandiflorus Bold. ex K.Heyne species doubtful

Orthosiphon mollis Baker species synonym

Plectranthus allenii C.H.Wright species synonym

Orthosiphon rabaiensis var. parvifolia S.Moore variety synonym

Orthosiphon schliebenii A.J.Paton species accepted

Orthosiphon glabratus var. parviflorus (Benth.) Gamble variety synonym

Orthosiphon pallidus Royle species homotypic synonym

Orthosiphon tomentosus var. rubiginosus C.B.Clarke variety homotypic synonym

Ocimum reflexum Ehrenb. species homotypic synonym

Orthosiphon verticillatus B.Heyne species homotypic synonym

Orthosiphon cinereus A.J.Paton species accepted