FLORA OF VIETNAM. Fam. Urticaceae. N. Vietnam, prov. Ha Giang, distr. Yen Minh, municipality Du Gia,. vicinities of Coc Pan village (N 23°56' E 105°13'). Secondary wet. closed evergreen broadleaved forest on limestone ridge foothills along. river at 450 m elev. Shrublet 1-1.5 m hg on open rocks along stream. Very common. Codominanthe of stream shrub communities. No CBL 2013   03 May 1999. International Botanical Expedition of the U.S.A. National Geographic. Society (grant No 6300-98). . Collectors: P.K.Loc, P.H.Hoang, Averyanov L.