Asystasia gangetica

Asystasia gangetica (L.) T.Anderson, Enum. Pl. Zeyl. [Thwaites] 235 (1860).

Asystasia gangetica (L.) T.Anderson, Photo by Ha Nguyen

its native range is Indian Subcontinent to N. & E. Australia.

Vietnamese name:

Thập vạn thác, Biến hoa sông hằng.

Uses: 

Rheumatoid bone pain, surgical wounds (whole trees). In India, leaf juice is used as an anthelmintic and massage therapy for rheumatoid arthritis.

Distribution: 

Hanoi (Ba Vi), Ninh Binh, Thua Thien Hue, Kon Tum, Khanh Hoa, Dong Nai. The tree grows naturally on the roadside, the bush around the village.