Robust epiphyte. Pseudobulbs spindle-shaped, to 1 m long, tip leafless. Leaves several, oblong, to 8 cm long, to 1 cm wide, rounded or notched at tip. Flowers several to many, to 5 cm wide, white or pinkish. Sepals lanceolate. Petals oblong, smaller than sepals. Labellum 3-lobed, side lobes embracing column, midlobe almost round, margins wavy, base of labellum yellow; year round flowering.
India, Sri Lanka, Burma,Thailand, China and Malaysia, Philippines, Borneo.
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.