Lip 14–20 × 9–15 mm, 3-lobed, curved in side view; side lobes obliquely oblong; mid-lobe 7–10 mm wide, transversely oblong, obtuse or emarginate, with 3–5 fleshy, rugulose yellow crests running down to near the apex.
Leaves 1–2, 25–45 cm × 3–5 mm, linear, ribbed, grass-like, usually absent at flowering time, sometimes just starting to grow.
Perennating organs subterranean, tuberous, 1–3 cm long, 8–15 mm in diameter, irregularly shaped; roots 1–1.5 mm in diameter.
Flowers white, pale pink or lilac, the lip edged with purple or occasionally mainly purple.
Inflorescence laxly 3–7-flowered; scape with 3–4 scattered, scarious sheaths.
Petals 17–20 × 8–14 mm, elliptic to obovate, obtuse, projecting over column.
Bracts 8–20 mm long, lanceolate, acuminate or aristate.
Spur 5–7 mm long, conical or cylindrical, incurved.
Sepals 13–17 × 3–6 mm, oblong-lanceolate, reflexed.
Flowers up to 12, white and pink or purple.
Slender terrestrial herb 25–78 cm tall.
Column 7–9 mm long; foot 1–2 mm long.
Pedicel and ovary 12–18 mm long.
Capsule pendent, c. 20 mm long.
Scape 1-31/2 ft. high
Leaves narrow, linear