Hedyosmum is a genus of rhizomal flowering plants in the family Chloranthaceae. There are about 40 to 45 species. They are distributed in Central and South America and the West Indies, and one species also occurs in southeastern Asia. They are mostly dioecious, except for H. nutans and H. brenesii which are exclusively monoecious, and H. scaberrimum and H. costaricense with both monoecious and dioecious individuals.

...