FLORA OF VIETNAM Fam. Convallariaceae Polygonatum sp. N. Vietnam, prov. Son La, distr. Moc Chau, municipality Chieng Hac, vicinities of Co Liu village (N 20°51' E 104°38'). Primary evergreen broadleaved wet forest on very steep slopes and bluffs of remnant karst limestone ridge at 900-1000 m elev. Terrestrial forb up to 1.5 m hg in open place. Flowers light greenish-white. Stem at lower portion dirty purple. Common. No NTH 2952 29 May 1999 International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6300-98) Collectors: N.T.Hiep, P.H.Hoang, Averyanov L.