Wrightia dubia

Wrightia dubia is a species of shrub-plant in the family Apocynaceae. Its distribution includes: Indo-China and peninsular Malaysia (Kedah, Penang, Pahan); no subspecies are listed in the Catalogue of Life. In Viet Nam, it may be called lòng mức ngờ, in Malaysia it may be called bunga hantu ("ghost flower").