Botanical name: Raphionacme flanaganii
Common name: Raphionacme
Family: Apocynaceae (Formerly:Asclepiadaceae)
Subfamily: Asclepiadoideae
Origin: South Africa
Deciduous tuberous rooted vine. The flowers are green.
Similar plants: Raphionacme flanaganii (Raphionacme )
Link to this plant:
https://toptropicals.com/catalog/uid/raphionacme_flanaganii.htm