Medium sized epiphyte. Stem to 20 cm long. Leaves linear, to 35 cm long, to 7.5 cm wide, thick, channelled, green. Inflorescences to 35 cm long, drooping. Flowers to 3 cm wide, fragrant, white with violet to dark purple spots at base, labellum with purple terminal lobes; autumn to winter. Sepals elliptic. Petals elliptic, similar to sepals. Labellum 3-lobed at tip, oblong, 2-ridged at base. Spur short, inflated, backward-pointing.
Burma, Thailand & Laos.
Source: (2005). Orchidaceae. In: . Horticultural Flora of South-eastern Australia. Volume 5. Flowering plants. Monocotyledons. The identification of garden and cultivated plants. University of New South Wales Press.