Ashtonia is a genus of flowering plant belonging to the family Phyllanthaceae first described as a genus in 1968. It is native to the Malay Peninsula and Borneo. It is dioecious, with male and female flowers on separate plants. species Ashtonia excelsa Airy Shaw - Borneo Ashtonia praeterita Airy Shaw - S Thailand, W Malaysia References Phyllanthaceae Phyllanthaceae genera Flora of Borneo Flora of Thailand Flora of Peninsular Malaysia Dioecious plants