Peniocereus

Description

Peniocereus is a genus of vining cacti, comprising about 18 species, found from the southwestern United States and Mexico. They have a large underground tuber, thin and inconspicuous stems. Its name comes from the prefix penio- (from the Latin penis, meaning -tail-) and Cereus, the large genus from which it was split.Known as the desert night-blooming cereus, it also shares its common names of -night-blooming cereus- and -queen of the night- with many other similar cacti.