N. Vietnam, prov. Lao Cai, distr. Sa Pa, near Tram Tau village, N slope of Hoang Lien Son ridge at 1950-2000 m elev. (N 22°20′ E 103°50′). Secondary broadleaved evergreen wet forest with remnants of primary elements on shales. Shrub 1.5-2 m hg in open wet places along streamlet. Not rare.
NTH 2654 18 May 1999
International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6300-98)