FLORA OF VIETNAM Orchidaceae Juss. Paphiopedilum henryanum
Viet Nam, Ha Giang Prov., Cuan Ba Distr., Bat Dai Son Municipality, Bat Dai Son Province Protected area (23°09′11′'N, 104°59′06′'E). Primary broad-leaved evergreen forest on steep slope of remnant highly eroded limestone ridge at elev. 1000-1100 m a.s.l. Lithophytic herb on crevices of shady vertical cliff. Occasional.