FLORA OF VIETNAM
Orchidaceae
Cypripedium subtropicum S.C.Chen & K.Y.Lang

Lai Chau Prov., Sin Ho Distr., De Phin comm., around point 22°19′05.9N 103°13′53.8E.

Degraded primary and secondary evergreen broad-leaved forest on steep mountain slopes composed with shaly limestone at elevation about 1600 m a.s.l.

Terrestrial herb to 1 m tall in wet shady place on forest understory. Fruits greenish. Rare. Population highly depleted by previous commercial collecting. 5 October 2016 CPC 8243a Photos, no herbarium collected.
Coll.: L.Averyanov, N.T.Hiep, N.S.Khang, C.Q.Ngan, T.V.Maisak.