What is "oxystelma"

Oxystelma is a genus of flowering plants of the family Apocynaceae, first described as a genus in 1810. It is native to Africa and Asia.

Species

1. Oxystelma bornouense R.Br. - tropical Africa
2. Oxystelma esculentum (L.f.) Sm. - China (Guangdong, Guangxi, Yunnan), Indochina, Indian Subcontinent (India, Sri Lanka, Bangladesh, Nepal, Pakistan), Middle East, NE Africa

Species that were formerly included

The following species have been moved to other genera ( Ischnostemma, Philibertia, Raphistemma, Telosma, Tylophora)