| Strychnos cogens Benth. | | a | | Strychnos cogensBenth. | |
| Strychnos decussata (Pappe) Gilg | | a | | Strychnos decussata(Pappe) Gilg | |
| Strychnos gerrardii N. E. Br. | | a | | Strychnos gerrardiiN. E. Br. | |
| Strychnos gilletii De Wild. | Strychnos spinosa Lam. | | | Strychnos gilletiiDe Wild. | Strychnos spinosaLam. |
| Strychnos ignatii P. J. Bergius | | a | | Strychnos ignatiiP. J. Bergius | |
| Strychnos innocua Delile | | a | | Strychnos innocuaDelile | |
| Strychnos mellodora S. Moore | | a | | Strychnos mellodoraS. Moore | |
| Strychnos mitis S. Moore | | a | | Strychnos mitisS. Moore | |
| Strychnos nux-vomica L. | | a | | Strychnos nux-vomicaL. | |
| Strychnos potatorum L. f. | | a | | Strychnos potatorumL. f. | |
| Strychnos pungens Soler. | | a | | Strychnos pungensSoler. | |
| Strychnos quaqua Gilg | Strychnos madagascariensis Poir. | | | Strychnos quaquaGilg | Strychnos madagascariensisPoir. |
| Strychnos spinosa Lam. | | a | | Strychnos spinosaLam. | |
| Strychnos suberosa De Wild. | Strychnos cocculoides Baker | | | Strychnos suberosaDe Wild. | Strychnos cocculoidesBaker |
| Strychnos tonga Gilg | Strychnos spinosa Lam. | | | Strychnos tongaGilg | Strychnos spinosaLam. |
| Strychnos unguacha A. Rich. | Strychnos innocua Delile | | | Strychnos unguachaA. Rich. | Strychnos innocuaDelile |
| Strychnos toxifera M. R. Schomb. ex Benth. | | a | | Strychnos toxiferaM. R. Schomb. ex Benth. | |
| Strychnos spp. | | a | | Strychnos spp. | |
| Strychnos axillaris Colebr. | | a | | Strychnos axillarisColebr. | |
| Strychnos lucida R. Br. | | a | | Strychnos lucidaR. Br. | |
| Strychnos cathayensis Merr. | | a | | Strychnos cathayensisMerr. | |
| Strychnos nitida G. Don | | a | | Strychnos nitidaG. Don | |
| Strychnos wallichiana Steud. ex A. DC. | | a | | Strychnos wallichianaSteud. ex A. DC. | |
| Strychnos gossweileri Exell | | a | | Strychnos gossweileriExell | |
| Strychnos usambarensis Gilg | | a | | Strychnos usambarensisGilg | |
| Strychnos variabilis De Wild. | | a | | Strychnos variabilisDe Wild. | |
| Strychnos umbellata (Lour.) Merr. | | a | | Strychnos umbellata(Lour.) Merr. | |
| Strychnos angustiflora Benth. | | a | | Strychnos angustifloraBenth. | |
| Strychnos tieute Lesch. | Strychnos ignatii P. J. Bergius | | | Strychnos tieuteLesch. | Strychnos ignatiiP. J. Bergius |
| Strychnos pierriana A. W. Hill | Strychnos wallichiana Steud. ex A. DC. | | | Strychnos pierrianaA. W. Hill | Strychnos wallichianaSteud. ex A. DC. |
| Strychnos minor Dennst. | | a | | Strychnos minorDennst. | |
| Strychnos colubrina auct. | Strychnos minor Dennst. | | | Strychnos colubrinaauct. | Strychnos minorDennst. |
| Strychnos cocculoides Baker | | a | | Strychnos cocculoidesBaker | |
| Strychnos madagascariensis Poir. | | a | | Strychnos madagascariensisPoir. | |
| Strychnos castelnaeana Wedd. | | a | | Strychnos castelnaeanaWedd. | |
| Strychnos myrtoides Gilg & Busse | | a | | Strychnos myrtoidesGilg & Busse | |
| Strychnos guianensis (Aubl.) Mart. | | a | | Strychnos guianensis(Aubl.) Mart. | |