Hoa Binh Prov., Tan Lac Distr., Ngo Luong Municipality, Tram Hai Village, ca. 500 m to S of coordinate 20°27’55”N 105°17’01”E. In heavily logged evergreen broad-leaved forest on slope of limestone mts., at elevation about 730 m a.s.l.
Herb, ca. 0.5 m tall. Rare. CPC 1770 30 March 2011