Albizia is a genus of about 150 species of mostly fast-growing subtropical and tropical trees and shrubs in the Subfamily Mimosoideae of the legume family, Fabaceae. The genus is pantropical, occurring in Asia, Africa, Madagascar, Central, South, and southern North America and Australia, but mostly in the Old World tropics. They are commonly called silk trees or sirises. Peculiarly, the obsolete form of spelling the scientific name - with double 'z' - has stuck, so that another commonly used… (More on Albizia)