pereskia

from The Century Dictionary.

• noun A genus of cacti of the tribe Opuntieæ, characterized by the numerous large spreading petals in many rows, and the stigma with very many clustered or spiral rays.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun genus of tropical American shrubby trees and woody climbers having slender branches with broad flat leaves and large panicles of flowers