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Lip 3-lobed in apical half, 10–16 mm long, 3–5 mm wide, auriculate at the base; mid-lobe 3.5–5 × 1 mm, narrowly triangular; side lobes shorter, obliquely spreading; spur 4–5 cm long, slender, at first parallel to ovary, then pendent.
Sepals and petals lanceolate, acuminate; sepals 8–11 × 2.5–4 mm, the dorsal sepal with edges sometimes slightly erose, the lateral sepals somewhat oblique with the tips reflexed.
Leaves 3–4, stiff, more or less erect, 7–14 × 0.7–1.4 cm, linear, conduplicate, unequally and roundly 2-lobed at the apex, slightly glaucous green.
Flowers yellow, creamy-yellow or greenish-cream, c. 15 mm in diameter, arranged in 2 ranks, all facing the same way.
Inflorescences 1 or 2, arising at base of the stem, arching, 7.5–11 cm long, fairly densely c. 10-flowered.
Roots stout, up to 7 mm in diameter, clinging closely to bark of host, smooth or very slightly verrucose.
Petals spreading, reflexed at tips, 7–8 × 2.5–3 mm.
Stem usually short, 1–9 cm long.
Bracts to 3 mm long, sheathing.
Pedicel and ovary 4–6 mm long.
Erect, epiphytic herb.
Column 4–5 mm long.