An epiphytic herb 19–30 cm. high.. Pseudobulbs tightly clustered, from a short creeping rhizome, narrowly cylindric, 4.5–16.5 cm. long, 1.3–2 mm. in diameter, clothed in 3–4 membranous basal sheaths.. Leaf linear, cuneate below, obtuse, 14.5–23 cm. long, 4–11 mm. broad, coriaceous, articulated 1–2 mm. above the apex of the pseudobulb.. Inflorescence equal to or longer than the leaf, unbranched, 11–27 cm. long, up to 15-flowered; peduncle slender, 7–25.5 cm. long, with a membranous basal sheath; bracts triangular, amplexicaul, 1.5–2 mm. long.. Flowers yellow with a purple lip.. Dorsal sepal oblong-elliptic, concave, 2.8–3.5 mm. long, 1.8–2 mm. broad; lateral sepals roundly triangular, 3.5–4.5 mm. long, 2.5–4 mm. broad, mentum subovoid, 3.5 mm. long.. Petals linear, subacute, 2.6–3.2 mm. long, 0.4 mm. broad.. Lip clawed, strongly recurved, entire, subcordate or triangular, truncate, 3.5–4.5 mm. long, 2.5–3.2 mm. broad, glandular-pubescent above.. Column subterete, 1–2.5 mm. long; foot 2.6–3.5 mm. long.
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