Isonema

Isonema is a genus of plant in the family Apocynaceae first described as a genus in 1810. It is native to Africa.


 * Species
 * Isonema buchholzii Engl. - Nigeria, Cameroon
 * Isonema infundibuliflorum Stapf - Cameroon, Gabon, Zaire
 * Isonema smeathmannii Roem. & Schult. - W Africa (Ghana, Guinea, Guinea-Bissau, Ivory Coast, Liberia, Senegal, Sierra Leone)