Epiphytic, climbing herb; stem thick, branched leafy sheathed; leaves alternate, narrow, linear, 25-20 cm long, recurved, thick coriaceous, keeled; flowers bracteate, pedicellate, large, colored in suberect, axillary, racemes not exceeding the leaves; bracts short, ovate; sepals-3, oblong, unequal, obtuse, incurved, fleshy, yellowish green or brown; petals-3, fleshy, subequal, oblong, lip large, base saccate, side lobes large or small, mid lobe fleshy, whitish blue with yellow violet tips; disc usually ridged or lamellate; pollinia-2, anthers 2-celled, rostellum obscure, column short, stout, fleshy; capsules clavate or oblong, ribbed or sharply winged, pedicelled.