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Lip 18–29 × 10–17 mm, 3-lobed at about halfway; side lobes erect, mid-lobe deflexed, 7–15 × 8–16 mm, flabellate-obovate, with a callus of 7–11 low, verrucose ridges.
Leaves 3–4, the lowest 2 sheathing, 5–35 cm × 2–7.5 mm, linear, acuminate, grass-like, absent or just starting to develop at flowering time.
Perennating organs subterranean, tuberous, 3–4 × 1–2 cm, irregularly shaped with 2–3 nodes; roots c. 1 mm in diameter.
Sepals erect or spreading, 17–34 × 3–7 mm, lanceolate, acute, sometimes with the edges inrolled.
Inflorescence laxly 1–8-flowered; scape usually with 3–4 scarious sheathing bracts.
Petals 18–23 × 7–11 mm, elliptic-ovate, obtuse, projecting over column.
Spur 3–7 mm long, conical, blunt, forming a right-angle to the lip.
Bracts 10–30 mm long, spreading, scarious, linear, acuminate.
Flowers pale greenish-yellow, usually flushed with purple.
Pedicel and ovary slightly arched, 13–20 mm long.
Rather slender terrestrial herb 60–95 cm tall.
Lip sometimes with purple veins or streaks.
Column 12–13 mm long; foot 1 mm long.
Capsule pendent, 25–30 mm long.
No leaves at time of flowering
Flowers greenish or yellowish
