FLORA OF VIETNAM
Orchidaceae
Paphiopedilum hirsutissimum (Lindl.) Stein. var. esquirolei (Schlechter) Karasawa et Saito

N. Vietnam, prov. Cao Bang, distr. Tra Linh, municipality Quang Vinh (N 22°51′ E 106°14′), about 21 km from Cao Bang town to the N. Primary evergreen closed wet forest on steep slopes and bluffs of remnant limestone ridge at 650-800 m alt. Epilite herb on vertical shadow cliffs at 700 m alt. Not common.
CBL 982 09 Dec. 1998
International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6300-98)
Collectors: Averyanov L., N.Q.Binh, N.T.Hiep, N.X.Tam.