What is "glossonema"

Glossonema is a plant genus in the family Apocynaceae, first described as a genus in 1838. It is native to Africa and Southwest Asia.

1. Glossonema boveanum (Decne.) Decne. - Yemen, NE Africa
2. Glossonema revoilii Franch. - tropical Africa
3. Glossonema thruppii Oliv. - Somalia
4. Glossonema varians (Stocks) Benth. ex Hook.f. - Iran, Pakistan