Cyperorchis insignis (Rolfe) Schlechter. Plants terrestrial or lithophytic, autotrophic. Pseudobulbs ovoid or narrowly ovoid, slightly bilaterally flattened, 5–9 × 2.5–4 cm, enclosed in leaf bases. Leaves 6–9, lorate, 60–90 × 0.7–1.2 cm, articulate 7.5–10 cm from base, apex acuminate.

Inflorescence suberect or arching, 28–90 cm or longer, somewhat robust; rachis 4–9- or more flowered; floral bracts subtriangular, 3–5 mm, though lower ones 11–15 mm. Flowers not scented, 6–7 cm in diam.; pedicel and ovary 30–40 mm; sepals and petals white or pinkish, sometimes with red spots at base; lip white, often with purplish red spots and striations particularly on lateral lobes, and with a central yellow patch on midlobe. Sepals elliptic-obovate, concave, 30–35 × 10–14 mm, apex acute; lateral sepals spreading horizontally or nearly so, slightly oblique. Petals spreading, narrowly obovate, 28–30 × 10–12 mm, apex acute; lip subovate, slightly shorter than petals, base fused to basal margins of column for 2–3 mm, 3- lobed; lateral lobes inconspicuously ciliate; mid-lobe slightly recurved, ovate, margin crisped, apex acute; disk minutely papillate, mid-lobe with a densely hairy patch at center, with 3 lamellae; lamellae densely pubescent, lateral lamellae extending from base of lip to base of mid-lobe and inflated at their apices, central one shorter. Column arcuate, 24–28 mm, winged, puberulent at base on ventral surface; pollinia 2, triangular to subsquare. Fl. Nov–Dec. 2n = 40.