Tay Ninh prov., Tan Bien Distr., Tan Binh Municipality, near Ta Not Forest Protection Station, Trang Ta Not locality, around point 11?38′21″ N, 105?51′28″ E, 16 m a.s.l.
Common, scattered in wet grasslands in dry dipterocarp forests (seasonal tropical lowland broad-leaved) on old alluvial soil with the dominance of Dipterocarpus obtusifolius and D. intricatus. Semiparasite annual ? rough herb, up to 0.7-0.9 m; flowers purple. HAL 9248 24 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.