monopodial herbs. Stems ascending, stout, enclosed by leaf sheaths. Leaves
distichous, linear-oblong to terete, leathery, slightly fleshy, base jointed,
apex bilobed. Inflorescence pendulous, many flowered racemose or paniculate.
Flowers showy. Sepals and petals similar, spreading. Petals smaller than
sepals; lip attached to column foot, spurred, 3-lobed; lateral lobes decurrent
on column, erect; mid-lobe large or small, erose; spur narrowly conic or
horn-shaped, bent forward. Column elongate, broadened at apex, rostellum bifid;
anther 2-locular, beaked; pollinia 2, waxy, subglobose, grooved, viscidium