Biology : |
Terrestrial herb 15-60 cm tall, glabrous; tubers ellipsoid-fusiform, 1-3x0,5-1,5 cm; stem slender; leaves 5-7, the lowest 1-2 sheath-like, the middle 2 spreading, subopposite, elliptical, acute, borne towards stem base, 4-16x2-5 cm, the upper 2-3 leaves spread, appressed to stem, the largest 3-8x0,8-1,4 cm; inflorescence narrowly cylindrical, 5-22x1,5-2 cm, 5-50-flowered; flowers (yellow) green; bracts lanceolate, 8-28 mm long, reflexed; ovary 5-7 mm long; tepals sharply decurved, with papillate margins; dorsal sepal oblanceolate, 4-5x1 mm; laterals similar, twisted; petals similar but shorter; lip fleshy, ellipsoid, hooded, 5-6 mm long, apex recurved; spurs slender, 5-8 mm long, parallel to ovary. |
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