N. Vietnam, prov. Ha Giang, distr. Yen Minh, municipality Du Gia, E slopes of Phu Tha Ca mountain system at 1600-1800 m elev. (N 23°56′ E 105°13′). Primary evergreen broadleaved very wet mountain forest on shale-quartzite very steep slopes. Terrestrial herb on steep rocky shale-quartzite slope. Flowers light pink. Leaves light green with red venation and red hairs along veins and petiole. Very common.
CBL 2076 03 May 1999
International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6300-98)