FLORA OF VIETNAM Orchidaceae Sunipia andersonii (King & Pantl.) P.F.Hunt
Dien Bien Prov., Tua Chua Distr., Sin Chai Municipality, around point 22°03′38”N 103°19′56”E.
Primary humid evergreen broad-leaved forest on very steep rocky slopes and on tops of remnant mountain composed with highly eroded marble-like solid crystalline limestone at elevation 1350-1500 m a.s.l.
Creeping epiphyte on old mossy trees near top of ridge. Flowers light yellowish, sepals with brown spots. Very common.