A family of trees and shrubs in which the leaves are sometimes opposite, trifoliate or pinnate, and the leaflets serrate, with stipules. The flowers are hermaphrodite or unisexual. They have 5 sepals and petals, 5 stamens, a disc, and the ovary superior and usually trilocular. There are 5 genera, with 27 species, occurring in tropical Asia and America, and in the northern temperate zone.
Subjects: Plant Sciences and Forestry.