(Heterostemma samoense)
Heterostemma Samoense is an oleand species that was first described by Asa Gray , and became known as PI Forster. Heterostemma Samoense is part of the Heterostemma genus and the Apocynaceae family. Heterostemma is a genus of plants in the Apocynaceae, first described in 1834. It is native to India, China, Southeast Asia, Australia, and certain islands in the Pacific.