Epiphytic or lithophytic herb, often forming large clumps.Stem woody, sometimes branched, up to c. 30 cm long, covered with old leaf bases.Roots stout, c. 5 mm in diameter.Leaves coriaceous or somewhat fleshy, 7–20 × 1–3.8 cm, linear, ligulate, oblong or elliptic.Inflorescences spreading, 8–18 cm long, up to c. 10-flowered.Pedicel and ovary 15–50 mm long; bracts large, 10–30 × 10–16 mm.Flowers stellate, sweetly scented, white, turning apricot-coloured with age.Sepals and petals subsimilar, lanceolate, acuminate, recurved at apex; sepals 10–53 × 4.5–7 mm; petals 8–38 × 4–5 mm.Lip 8–42 × 3.5–6 mm, lanceolate, acuminate; spur 3–10 cm long, tapering from a mouth 3–6.5 mm wide, straight or slightly sigmoid.Column 1–3 mm long; anther 3–8 mm long, beaked.