| Biology : |
Terrestrial robust herb 30-90 cm tall; tubers ellipsoid, 1,5-2,5x0,8-1,4 cm; stem leafy; leaves 5-11, the lowermost 2-3 sheathing, the remaining semi-erect, lanceolate, ribbed, 12-27x1,5-5,5 cm, decreasing in size upwards; inflorescence pyramidal, 3-6x2,5-4 cm, densely many-flowered; flowers white often with purple marks; bracts leafy, conspicuous, pale green, ovate-lanceolate, 10-30x9 mm; ovary 6-10 mm long, ± pubescent; sepals and petals projecting forwards; dorsal sepal ligulate, 9-11x1-2 mm; laterals 11x5 mm; petals c. 10x1-2 mm; lip very convex, c. 8-14x8-14 mm, apex projecting, base hairy inside, mouth wide; spurs saccate, 1-2,5 mm long, sometimes ± lacking. |
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