Tay Ninh prov., Tay Ninh city, Thanh Tan Municipality, Thanh Trung village, near Forest Protection Station, slope of Nui Ba mountain, around point 11?23′47″ N, 106?09′24″ E, 35 m a.s.l.
Clustered in secondary grasslands and scrubs, edges of seasonal tropical lowland broad-leaved forest on foots and slopes of granite mountain. Perennial herbaceous vine, up to 3-5 m long; flowers white with purple throat. HAL 9263 27 Sep 2006 Photos Id by Phan Ke Loc Collectors: Phan Ke Loc, Nguyen Tien Vinh, Dang Van Son & Nguyen Quoc Dat
Collected with the financial support from NYBG, U.S.A.