Pseudobulbs 1 or 2 per plant, elliptical, 60–80 × 7–10 mm, curved, tapered. Leaves 2 or 3 on channelled stalks to 20 mm long, 80–120 × 40–60 mm, thin-textured, dark green, with 5 prominent veins, margins wavy. Racemes 150–250 mm long, 3–15-flowered. Flowers 8–12 × 10–15 mm, red to reddish purple with green column. Sepals and petals narrow, widely spreading. Dorsal sepal 9–11 × 2.5–3 mm. Lateral sepals 9–11 × 3.5–4mm, apex twisted. Petals twisted, 9–11 × 1 mm. Labellum 8–9 × 6–7 mm, base deeply channelled, with ridged basal callus, apex broadly rounded to nearly square with irregular margins.