FLORA OF VIETNAM Aristolochiaceae Asarum glabrum Merr.
Northern Vietnam, Lao Cai Prov., Van Ban Distr., Khanh Yen Ha municipality, to the SW of Na Nheo village (in the vicinity of point 21°58′39′'N, 104°14′35′'E). Primary closed evergreen broad-leaved submontane forest with Fokienia hodginsii on steep granite and quartzite slopes at elev. 1250-1350 m a.s.l. Terrestrial herb on steep slope. Flowers dull dirty yellow with black-violet round center. Common.