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Terrestrial herb, up to 200 mm tall. Leaves with serrulate margins. Petals acuminate, narrowly oblong with apices often circinnate. Flowers green, marked with purplish brown, midlobe of lip white with crests purplish red to pink.
Perennating organs pseudobulbous, mostly above ground, 4–23 × 1–4 cm, ovoid, conical or cylindrical, with 4–6 nodes, green at first, turning yellow and ribbed; roots stout, 4–5 mm in diameter.
Lip 14–27 × 8–17 mm across the side lobes when flattened, 3-lobed, side lobes erect, mid-lobe subquadrate, 4–10 mm long, 6–14 mm wide, with a callus of 3 fleshy, erose ridges.
Leaves 2–4, usually 2, erect, somewhat conduplicate, 14–95 × 1–6 cm, linear-ligulate, the edges serrate, succulent, drying ribbed.
Sepals 16–30 × 2–6 mm, oblanceolate, acuminate or apiculate, curled back at the tips, the dorsal erect, the laterals spreading.
Inflorescence up to 3 m tall, usually with 3–7 branches; peduncle stout with 4 bracts.
Petals 16–22 × 4–8 mm, oblanceolate or oblong, apiculate, curled back at the tips.
Sepals and petals green, veined with purple-red; lip white, marked with red.
Column 8–9 mm long, lacking papillae; the foot 1–2 mm long.
Spur 4–6 mm long, subcylindrical, usually incurved.
Bracts up to 18 mm long, lanceolate, acuminate.
Capsule 4–5 cm long, pendent, ellipsoid.
Pedicel and ovary 2–3 cm long.
Robust terrestrial herb.
