Aizopsis is a genus of the succulent family Crassulaceae (stonecrop family), found in Asia.

Description

Flowers yellow, chromosome numbers, x=16.

Taxonomy

In 1978, Ohba divided up the very large and cosmopolitan genus Sedum, placing Sedum aizoon and allied species into Sedum subgenus Aizoon. In 1995, he segregated these species into a separate genus, Aizopsis. However, other authors included these species in another segregate, Phedimus, as subgenus Aizoon. Subsequent molecular phylogenetic analysis established Aizopsis as a sister group to Phedimus, which with distinguishing characteristics justified their retention as a separate genus, although the distinction has not been universally adopted.

Distribution

Original range from east Asia (highest diversity) and northeast Asia to central Asia (one species). Now also naturalized in Europe and North America.

Bibliography