Slender saprophyte, 6-16 cm high. Stem usually simple, only branched at the top into the inflorescence, 1-5-flowered, beset with small, reduced, scalelike, lanceolate, acute leaves, 2-5 mm long. Larger leaves often acuminate or subulate, sometimes imbricate in the lower stem part. Radical, rosulate, leaves lacking. Bracts similar to the stem'scales, about 3 mm long. Flowers white or white with yellow or blue, 6-10 mm long, prominently 3-winged. Outer perianth-lobes about 2 mm long, obovate, obtuse, thick and fleshy in the upper part. Inner lobes erect, linear to oblanceolate, obtuse, almost 1 mm long. Perianth-tube cylindrical, slightly swollen in the upper part, about 4 mm long. Anthers sessile in the perianth-throat below the inner lobes. Connective oblong with two apical, acute, divergent crests, basal hanging spur lacking. Style filiform, bearing at its apex 3 subsessile, obconical to funnel-shaped stigmas. Style with stigmas about 4 mm long. Ovary obconical to obovoid, about 2.5 mm long. Flower wings 5-8 mm long and up to 4.5 mm broad, half-rhomboid to half-cuneate, running from the base of the limb to below the base of the ovary.
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