Medium sized epiphyte or epilith. Pseudobulbs tetragonal, to 9 cm long. Leaves elliptic to oblong, to 30 cm long, to 10 cm wide. Flowers 1-3, to 8 cm wide; spring to summer. Sepals and petals white to yellowish. Labellum hairy towards tip, purple to dark red, callus yellow.
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.