Terrestrial herb.Pseudobulbs subterranean or partly aerial, forming a chain.Leaves up to 7, forming a fan, 12–30 × 0.3–2 cm, linear, with an abscission layer near the base, the basal sheath spotted with purple-red, present or just starting to appear at flowering time.Flowering stem 30–50 cm tall, rather laxly several-flowered; scape with several tight sheaths.Pedicel and ovary 16–17 mm long; bracts 5–6 mm long, lanceolate, acute.Sepals olive-green and purplish; petals yellow, yellow-green; lip yellow-green with maroon veins; spur tipped with maroon.Sepals 13–16 × 1.8–4.8 mm, oblong to oblanceolate, acute or obtuse, the laterals oblique.Petals 11.5–12.5 × 3.5–4.8 mm, oblong-lanceolate, acute or obtuse.Lip 12–15 × 7.5–11 mm, 3-lobed in the apical third; mid-lobe 5–5.5 × 3–5.5 mm, oblong, apiculate; side lobes c. 8 mm long, erect, partly joined to the column foot; base of lip conical, narrowing into the ± cylindrical spur; spur 3–4.5 mm long, straight or bent forwards, blunt, sometimes bilobed at the apex.Crests formed of thin lamellae on the main veins of the lip, taller on the mid-lobe than on the side lobes and finely pubescent towards the base of the lip.Column 6–8.5 mm long with auricles at the base.
