Genianthus is a genus of plants in the Apocynaceae, first described as a genus in 1883. It is native to southern China, the Indian Subcontinent, and Southeast Asia. Species 1. \n* Genianthus aurantiacus (C.Y.Wu ex Tsiang & P.T.Li) Klack. - Yunnan, Myanmar, Thailand, Assam, Bhutan 2. \n* Genianthus bicoronatus Klack. - Yunnan, Myanmar, Thailand 3. \n* Genianthus blumei (Decne.) King & Gamble - Java 4. \n* Genianthus crassifolius (Wight) Hook.f. - India 5. \n* Genianthus ellipticus (Blume) Bakh.f. - Java 6. \n* Genianthus hastatus Klack. - Sikkim, Assam, Thailand, Mizoram 7. \n* Genianthus horei Vasudeva Rao - Nicobar Islands 8. \n* Genianthus laurifolius (Roxb.) Hook.f. - E India 9. \n* Genianthus macrophyllus (Blume) Boerl. - Java 10. \n* Genianthus maingayi Hook.f. - Singapore