Botanical name: Gerrardanthus lobatus
Common name: Blob Plant
Family: Cucurbitaceae
Origin: Southern Africa
Gerrardanthus lobatus is a perennial herbaceous climber relative of the cucumber with 6 m long stems expanded at base into an enormous semi-subterranean water storing rootstock (caudex). It is growing in a rich and well drained soil with some to lots of water and some to lots of sun. It should be watered regularly in Summer and kept drier in Winter.
Similar plants: Gerrardanthus lobatus (Blob Plant)
Link to this plant:
https://toptropicals.com/catalog/uid/gerrardanthus_lobatus.htm