Acokanthera

Acokanthera is a genus of flowering plants in the family Apocynaceae. It comprises 5 species and is generally restricted to Africa, although A. schimperi also occurs in Yemen. Its sap contains the deadly toxin ouabain, a glycoside that causes heart failure. The sap is among the most commonly used in arrow poisons, including those used for poaching elephants. The poison it contains works by stopping the heart, like most other arrow poisons. Species Acokanthera laevigata Kupicha - Tanzania, Malawi Acokanthera oblongifolia (Hochst.) Benth. & Hook.f. ex B.D.Jacks. - Mozambique, South Africa Acokanthera oppositifolia (Lam.) Codd - widespread from Cape Province north to Zaire and Tanzania Acokanthera rotundata (Codd) Kupicha - Zimbabwe, Eswatini, eastern South Africa Acokanthera schimperi (A.DC.) Schweinf. - Yemen, Eritrea, Djibouti, Ethiopia, Somalia, Socotra, Kenya, Tanzania, Rwanda, Zaire...read more on Wikipedia.