FLORA OF LAOS
Orchidaceae
Porpax elwesii (Rchb.f.) Rolfe

Phou Khao Khouay National Protected Area to about 40 km NE of Vientiane. Dry evergreen primary and secondary forest along rocky stream on sandstone at elev. 350 m a.s.l. Lithophytic adpressed leafless herb. Flowers dark red-brown. Very common. 9 December 2015, L.Averyanov, T.Maisak, AL 153.