Plant about 2 ft. high, glabrous. Lower leaves ascending, 5–7 in. long, 7–14 lin. broad, strap-shaped or lanceolate, acuminate, upper gradually smaller and becoming reduced to acuminate sheaths. Spike 3–4 in. long, 1 1/4–1 1/2 in. diam., rather lax. Bracts as long as or longer than flowers, 3/4–1 3/4 in. long, 3 1/2–5 lin. broad, lanceolate, acuminate. Dorsal sepal erect, 3 1/2–4 lin. long, 2 1/2 lin. broad, subhemispherical, hooded at the obtuse apex; spur slender, 8–9 lin. long, 2/3 lin. thick, pendulous, curved. Lateral sepals spreading and deflexed, 4 lin. long, 2–2 1/4 lin. broad, oblong, obtuse with a short dorsal apiculus at the apex. Petals free or nearly so, 2 1/2 lin. long, 3/4 lin. broad, entire, falcate-oblong, obtuse or subacute. Lip 3 1/2–4 lin. long, 1 1/3 lin. broad near the apex, cuneate-oblong, obtuse. Anther horizontal, 3/4–1 lin. long. Rostellum short, truncate, with a very slight fold between the anther-cells.
