Epiphytic somewhat scandent rhizomatous orchid, bilobed coriaceous leaves to 330mm x 37mm, solitary flowers with floral bracts to 30mm x 15mm, yellowish flowers with red lines & spots, purple-grey lip, pale yellow centre marked purple, sepals to 35mm x 10mm, petals to 28mm x 10mm, capsule 30mm x 13mm with persistent perianth