Da Nang City, Hoa Vang Distr., Hoa Ninh municipality, Ba Na – Nui Chua protected area, around point 16°00’05”N 108°01’15”E. Highly destroyed primary and secondary broadleaved evergreen forest on very steep mountain slopes with granite mother rocks at elev. 800-900 m a.s.l. Creeping semi-woody epiphytic vine to 10 m long on shady steep slope along small stream. Flowers purple-violet. Not common.