FLORA OF VIETNAM
Orchidaceae Juss.
Tainia penangiana Hook.f.

N. Vietnam, Hoa Binh prov., Da Bac distr., Cao Son municipality, Nui Hen (Ba Tri) mountain system (20°54′09′'N, 105°12′15′'E). Remnants of primary forest among secondary wet broad-leaved evergreen forest with bamboo on very steep mountain slopes based on shale and sandstones with quartzite at 700-800 m a.s.l. Lithophyte herb on shady stream rocks. Flowers: tepals yellow-brown, lip yellow with purple-violet
small marks. Occasional.
HAL 593 4 April 2001
Collectors: N.T.Hiep, L.Averyanov, N.T.Vinh, D.T.Doan.