Botanical name: Strophanthus speciosus
Common names: Corkscrew Flower, Forest Poison Rope, Forest Tail Flower
Family: Apocynaceae
Origin: South Africa
Rare rambling or vining evergreen shrub with clusters of unusual starfish-shaped flowers, sweetly scented.
Similar plants: Strophanthus speciosus (Corkscrew Flower)
Link to this plant:
https://toptropicals.com/catalog/uid/strophanthus_speciosus.htm