FLORA OF VIETNAM. Fam. Urticaceae. Elatostema sp. N. Vietnam, prov. Cao Bang, distr. Tra Linh, municipality Luu Ngoc,. vicinities of Lung Mu village (N 22°47' E 106°18'), about 14 km from. Cao Bang town to the N. Secondary evergreen broadleaved closed forest. on steep slopes and bluffs of remnant limestone ridge at 650-800 m. alt. Epilite and terrestrial herb up to 20-30 cm hg in shadow places. Not common. No CBL 1203   13 Dec. 1998. International Botanical Expedition of the U.S.A. National Geographic. Society (grant No 6300-98). . Collectors: N.T.Hiep, N.Q.Binh, P.K.Loc, N.X.Tam, Averyanov L.