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Leaf solitary, appearing after flowering, erect to suberect, large, 6–16 cm long and 3.5–11 cm wide, ovate to almost round, glabrous, pleated; apex obtuse to acute or slightly acuminate; base attenuate to truncate or slightly cordate; veins 6–10; petiole 5.5–17 cm long, sulcate with 1–5 sheathing cataphylls when young.
Lip cream or pale yellow with prominent red or purple venation, (19)24–40 × 22–31 mm, ovate, 3-lobed, bearing 2 parallel fleshy pubescent ridges running from base of lip to base of mid-lobe; side lobes oblong, rounded to obtuse, erect, enclosing the column; mid-lobe ovate, obtuse, reflexed.
Sepals and petals subequal, linear-lanceolate, acute, greenish-yellow with red veins and a general reddish tinge to the outside; lateral sepals slightly oblique, 25–42(45) × 5.2–7.5 mm; petals slightly shorter than sepals.
Column curved, 16–25 mm long, clavate, glabrous; anther front rim with 2 protruding teeth; pollinia yellow, 3.9–5.2 mm; stigmatic surface 5–8 mm in diameter.
Erect terrestrial herb (10)15–44 cm tall, glabrous except for lip and subterranean parts.
Flowers large, more or less secund; bracts 22–31 mm long, linear, setose, acute.
Scape erect, terete, (1)2–3-flowered, with 2–4 sheathing cataphylls.
Tuber 1.5–3 × 1.5–2.8 × 0.8–2 cm, subspherical or ovoid, 4–7-noded.
Capsule 14–19 × 12 mm.
