Botanical name: Mucuna nigricans
Common name: Black Jade Vine
Family: Fabaceae
Subfamily: Faboideae
Origin: Eastern Asia
USDA Plant Hardiness Zone Map
Related to red Jade vine (Mucuna bennettii).The dark violet blooms appear closely pushed together in grape like clusters, up to 1 ft long and 6" in diameter. Very vigorous woody tree creeper - during warmer weather this vine can grow 2 feet or more a week. Cold hardy in Florida to at least zone 9b.
Similar plants: Mucuna nigricans (Black Jade Vine)
Link to this plant:
https://toptropicals.com/catalog/uid/mucuna_nigricans.htm