Physostigma
Physostigma is a genus of flowering plants in the family Fabaceae. It includes five species of erect or climbing herbs and subshrubs native to sub-Saharan Africa. They grow in tropical swamp and riverine vegetation and seasonally-dry forest, open woodland, and grassland in the Guineo-Congolian and Zambezian regions. The genus belongs to subfamily Faboideae.
Species in the genus include:
- Physostigma coriaceum Merxm.
- Physostigma cylindrospermum Holmes
- Physostigma laxius Merxm.
- Physostigma mesoponticum Taub.
- Physostigma venenosum Balf.