Leaves 3–6, tufted, 70–300 × 3–6 mm, straight. Flower stem 150–350 mm, 1–4-flowered. Flowers semi-nodding, 18–20 mm across, pale yellowish with numerous dark reddish purple striations. Dorsal sepal obliquely erect, 8–12 × 6–9 mm. Lateral sepals obliquely deflexed below labellum, 15–20 × 2.5–4 mm. Petals incurved or spreading horizontally; stalk 5.5–7 mm long, purple, expanded into blade; blade narrowly elliptical, 6–9 × 3.5–5 mm. Labellum 11–14 mm long, yellowish with numerous radiating purple streaks; lateral lobes 3–5 × 2 mm, tips lobed; midlobe 7–10 × 8–12 mm, ovate, margins scalloped. Callus ridges 3, 2 c. 6 mm long, densely papillate, a third central ridge extending nearly to labellum apex.
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