| Biology : |
Terrestrial herb 35-80 cm tall; tubers 2, ovoid, 1-4,5x0,8-1,4 cm; sterile shoot 3-4-leaved, lowermost 1-2 sheathing, upper ones lanceolate, 10-11x2-3,5 cm; flowering stem covered by 7-12 sheathing leaves 4-7x1-3 cm; inflorescence cylindrical, 11-32x2-3 cm, 10-30-flowered; flowers greenish-yellow, tinged with brown-purple; bracts lanceolate, 10-30 mm long, reflexed; ovary curved, 7-9 mm long, purple, papillose; tepals decurved; dorsal sepal oblong, 5-8x1-2 mm; laterals similar but wider; petals similar but shorter, puberulous; lip fleshy, ellipsoid, 5-7 mm long, apex reflexed, mouth narrow; spurs 2, very slender, 17-25 mm long, straggling, ascending in young flowers but pendent in older flowers, often with an extra pair of vestigial spurs. |
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