Hemi-epiphytic orchid with leaves to 500mm x 25mm. Twining scapes to 3m with bracts to 35mm long, dark purple-brown & yellow flowers, sepals brown with pale yellow margins becoming dark purple, dorsal sepal to 17mm x 10.5mm, lateral sepals longer, petals as long & nearly as wide, 3-lobed lip 18mm x 12mm.