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Inflorescence 20–45 cm tall, fairly densely several-to many-flowered; scape stout, with several loose sheaths.
Flowers not opening wide, yellow-green or green, the lip marked with purple, sometimes predominantly purple.
Leaves 2–3, erect, 12–60 × 0.2–2.5 cm, linear, ribbed, partly to fully developed at flowering time.
Bracts similar or slightly longer, narrowly lanceolate, acuminate.
Perennating organs subterranean, tuberous, forming a chain.
Petals c. 12 × 5.5 mm, elliptic, obtuse.
Sepals 10–15 × 5 mm, lanceolate, acute.
Pedicel and ovary c. 10 mm long.
Column 4–6 mm long, stout.
Terrestrial herb.
