Dioecious. Stamens 5, inserted on narrow, flat receptacle, free or united, disc not obvious, anthers small, 1-thecous (except Alsomitra and Bayabusua: Ovary truncate at apex, not narrowed; Fruits dehiscing, capsular, apically opening with 3 incurving valves releasing (mostly) winged seeds (except Gynostemma, p.p. indehiscent).
Six genera in Malesia — Alsomitra, Bayabusua, Gomphogyne, Gynostemma, Neoalsomitra, and Zanonia.
The genus name Nhandiroba Kostel. is invalid because it is homotypical with Fevillea, the older name, and Fevillea L. was mentioned as a synonym. Therefore the subfamily name Nhandiroboideae Kostel. (1833) cannot be used.