FLORA OF VIETNAM. Ophiopogon reptans Hook.f. N. Vietnam, Prov. Thai Nguyen, distr. Dai Tu, vicinities of Tam Dao. town, NE macroslope of Tam Dao ridge at 950-1000 m alt. . (N 21°27' E 105°38'). Closed wet evergreen broadleaved primary forest on very steep mt slope. Shrublet up to 0.4 m hg. Flowers white, often with light violet tint. Common. No VH 4996  31.05.1997. International Botanical Expedition of the U.S.A. National Geographic. Society (grant No 5803-96). . Collectors: L. Averyanov, N.T. Hiep, P.K. Loc