FLORA OF VIETNAM
Orchidaceae
Paphiopedilum dianthum Tang & F.T.Wang

Son La Prov., Moc Chau Distr., Chieng Hac Municipality, around point 20°51′50″N 104°31′17″E.

Broad-leaved evergreen dry forest on steep slopes and on tops of ridge composed with rocky crystalline solid marble-like highly eroded limestone at elev. 1200-1300 m a.s.l.

Clustering lithophyte on mossy rocks along ridge edge. Not common.

HAL 9409 31 Oct. 2006
Coll.: Nguyen Tien Hiep, L.Averyanov, Pham Van The.