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Plants slender; stems to 250 mm long, slender, 2-3 mm in diameter; leaf sheaths laterally compressed, c. 10 mm long, blades flat, linear-lorate, ensiform, very unequally and acutely bilobed, dull green, often suffused with yellow-bronze, 50-60 x 5-8 mm. Inflorescences opposite leaves, with 1-4 flowers; peduncle slender; bracts papery, 3 mm long. Flowers pinkish-beige. Sepals equal, somewhat reflexed, lanceolate, acute, 6.5-10 x 2.5-3 mm. Petals like the sepals. Lip narrowly ovate, acute, apiculate, deeply concave with the margins and apiculus reflexed, 7x3 mm; spur 14-15 mm long, clavate, funnel-shaped at the entrance. Gynostemium stout, 1 mm tall.
Inflorescences borne along the stem, opposite leaves, arising at same place in successive years, 1–2-flowered, the second bud usually aborting. Flowers orange-straw coloured. Peduncle 15–25 mm long; pedicel c. 7 mm long; ovary 5 mm long, forming a right angle with the pedicel.
Leaves several, distichous, twisted at the base so as to lie in one plane, 3–6 × 0.5–0.9 cm, ligulate, falcate, unequally and acutely 2-lobed at the apex, the longer lobe to 7 mm long, the lobes often slightly divergent, the leaves olive-green often tinged reddish or orange.
Lip 8–15 × 3.3–6 mm, boat-shaped, acuminate; spur 13–26 mm long, somewhat swollen in last 7 mm.
Sepals 9–21 × 2.3–3.8 mm, lanceolate, acute; petals similar but slightly shorter.
Pendent epiphytic herb; stem elongated, sometimes branched, up to c. 20 cm long.
Flowers often non-resupinate, with the spur lying parallel to the dorsal sepal.
Roots 1–2 mm in diameter, borne along the stem opposite leaves.
Column 1.3–2 mm long.
Bracts c. 4 mm long.
