Quang Binh Prov., Minh Hoa Distr., Thuong Hoa Comm., Ban On Vill., Hang Kho mt. (about 200 m to N of Ban On HQ), ca. 17°40′21″N, 105°57′59″E, 250-280 m.
On edges and open places of heavily logged primary evergreen broad-leaved forests and woodlands, foot and lower part of slopes of limestone mts.
Small shrub, 1.5-2 m tall; flowers whitish. Rather common.