| Strophanthus amboensis (Schinz) Engl. & Pax | | a | | Strophanthus amboensis(Schinz) Engl. & Pax | |
| Strophanthus arnoldianus De Wild. & T. Durand | | a | | Strophanthus arnoldianusDe Wild. & T. Durand | |
| Strophanthus barteri Franch. | | a | | Strophanthus barteriFranch. | |
| Strophanthus boivinii Baill. | | a | | Strophanthus boiviniiBaill. | |
| Strophanthus bullenianus Mast. | | a | | Strophanthus bullenianusMast. | |
| Strophanthus caudatus (L.) Kurz | | a | | Strophanthus caudatus(L.) Kurz | |
| Strophanthus congoensis Franch. | | a | | Strophanthus congoensisFranch. | |
| Strophanthus courmontii Sacleux ex Franch. | | a | | Strophanthus courmontiiSacleux ex Franch. | |
| Strophanthus dichotomus DC. | Strophanthus caudatus (L.) Kurz | | | Strophanthus dichotomusDC. | Strophanthus caudatus(L.) Kurz |
| Strophanthus divaricatus (Lour.) Hook. & Arn. | | a | | Strophanthus divaricatus(Lour.) Hook. & Arn. | |
| Strophanthus divergens Graham | Strophanthus divaricatus (Lour.) Hook. & Arn. | | | Strophanthus divergensGraham | Strophanthus divaricatus(Lour.) Hook. & Arn. |
| Strophanthus ecaudatus Rolfe | Strophanthus welwitschii (Baill.) K. Schum. | | | Strophanthus ecaudatusRolfe | Strophanthus welwitschii(Baill.) K. Schum. |
| Strophanthus eminii Asch. & Pax | | a | | Strophanthus eminiiAsch. & Pax | |
| Strophanthus gardeniiflorus Gilg | | a | | Strophanthus gardeniiflorusGilg | |
| Strophanthus gerrardii Stapf | | a | | Strophanthus gerrardiiStapf | |
| Strophanthus glabriflorus (Monach.) Monach. | Strophanthus sarmentosus DC. var. glabriflorus Monach. | | | Strophanthus glabriflorus(Monach.) Monach. | Strophanthus sarmentosusDC. var.glabriflorus Monach. |
| Strophanthus gossweileri H. Hess | Strophanthus amboensis (Schinz) Engl. & Pax | | | Strophanthus gossweileriH. Hess | Strophanthus amboensis(Schinz) Engl. & Pax |
| Strophanthus gracilis K. Schum. & Pax | | a | | Strophanthus gracilisK. Schum. & Pax | |
| Strophanthus grandiflorus (N. E. Br.) Gilg | Strophanthus petersianus Klotzsch | | | Strophanthus grandiflorus(N. E. Br.) Gilg | Strophanthus petersianusKlotzsch |
| Strophanthus gratus (Wall. & Hook.) Baill. | | a | | Strophanthus gratus(Wall. & Hook.) Baill. | |
| Strophanthus hirsutus H. Hess | Strophanthus amboensis (Schinz) Engl. & Pax | | | Strophanthus hirsutusH. Hess | Strophanthus amboensis(Schinz) Engl. & Pax |
| Strophanthus hispidus DC. | | a | | Strophanthus hispidusDC. | |
| Strophanthus hypoleucos Stapf | | a | | Strophanthus hypoleucosStapf | |
| Strophanthus intermedius Pax | Strophanthus amboensis (Schinz) Engl. & Pax | | | Strophanthus intermediusPax | Strophanthus amboensis(Schinz) Engl. & Pax |
| Strophanthus kombe Oliv. | | a | | Strophanthus kombeOliv. | |
| Strophanthus longicalyx H. Hess | Strophanthus amboensis (Schinz) Engl. & Pax | | | Strophanthus longicalyxH. Hess | Strophanthus amboensis(Schinz) Engl. & Pax |
| Strophanthus mirabilis Gilg | | a | | Strophanthus mirabilisGilg | |
| Strophanthus nicholsonii Holmes | | a | | Strophanthus nicholsoniiHolmes | |
| Strophanthus paxii H. Hess | Strophanthus amboensis (Schinz) Engl. & Pax | | | Strophanthus paxiiH. Hess | Strophanthus amboensis(Schinz) Engl. & Pax |
| Strophanthus petersianus Klotzsch | | a | | Strophanthus petersianusKlotzsch | |
| Strophanthus petersianus var. amboensis Schinz | Strophanthus amboensis (Schinz) Engl. & Pax | | i | Strophanthus petersianusvar.amboensis Schinz | Strophanthus amboensis(Schinz) Engl. & Pax |
| Strophanthus petersianus var. grandiflorus N. E. Br. | Strophanthus petersianus Klotzsch | | i | Strophanthus petersianusvar.grandiflorus N. E. Br. | Strophanthus petersianusKlotzsch |
| Strophanthus preussii Engl. & Pax | | a | | Strophanthus preussiiEngl. & Pax | |
| Strophanthus sarmentosus DC. | | a | | Strophanthus sarmentosusDC. | |
| Strophanthus sarmentosus DC. var. glabriflorus Monach. | | a | i | Strophanthus sarmentosusDC. var.glabriflorus Monach. | |
| Strophanthus schuchardtii Pax | Strophanthus amboensis (Schinz) Engl. & Pax | | | Strophanthus schuchardtiiPax | Strophanthus amboensis(Schinz) Engl. & Pax |
| Strophanthus speciosus (N. B. Ward & Harv.) Reber | | a | | Strophanthus speciosus(N. B. Ward & Harv.) Reber | |
| Strophanthus thollonii Franch. | | a | | Strophanthus tholloniiFranch. | |
| Strophanthus vanderijstii Staner | | a | | Strophanthus vanderijstiiStaner | |
| Strophanthus wallichii A. DC. | | a | | Strophanthus wallichiiA. DC. | |
| Strophanthus welwitschii (Baill.) K. Schum. | | a | | Strophanthus welwitschii(Baill.) K. Schum. | |
| Strophanthus wightianus Wight | | a | | Strophanthus wightianusWight | |
| Strophanthus spp. | | a | | Strophanthus spp. | |
| Strophanthus luteolus Codd | | a | | Strophanthus luteolusCodd | |
| Strophanthus sarmentosus DC. var. sarmentosus | | a | i | Strophanthus sarmentosusDC. var.sarmentosus | |