calyx teeth obsolete. petals yellowish green to yellow, elliptic, apex incurved.
萼齿不明显花瓣黄绿色到黄色,椭圆形,先端内弯。
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segments incurved, abaxially with transverse, winglike, membranous, veined appendages in fruit.
弯曲的裂片,背面具横裂的,翅状,膜质,在果期脉具附属物。
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style incurved at apex, hardly as long as anthers, sparsely pubescent.
花柱弯曲的在先端,几乎与花药等长,疏生短柔毛。
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唇瓣在喉紫色斑点内,囊状,突然缩小成一弯曲的距0.8-1厘米。
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花被淡黄白色的,6-10毫米,管状的管,通常分至中部,长圆状线形裂片,在5.5毫米,先端锐尖,弯曲。
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calyx lobes linear, becoming semiterete, incurved, ca. 2 mm, to 4-5 mm in fruit, persistent.
萼裂片线形,变得半圆柱形,弯曲,约2毫米,在果期对4-5毫米,宿存。
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柔荑花序长和纤细,超过3厘米,4-5毫米厚;线形的腺体,0.9毫米,弯曲的先端通常的超过。
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花被片长方形,部分高于背翅稍弯曲,围绕胞果,先端钝;
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花瓣白色或淡黄白色,很少紫色,卵形或倒卵形,基部楔形,先端内弯,具缺刻;
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lemma apex acute to acuminate, sometimes scarious and incurved, rarely mucronate;
外稃先端锐尖或渐尖,有时干膜质和弯曲,很少具短尖;
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lower sepal cup-shaped or deeply navicular, abruptly constricted into an erect or incurved spur;
唇瓣杯状或深舟状,突然缢缩成一直立或弯曲的距;
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rays numerous, spreading or incurved after anthesis, tightly compact in fruit;
伞辐多数,开展或弯曲在花后,紧紧紧密在果期;
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sepals obovate; disk segments 6, opposite to sepals, incurved distally, covering anthers;
萼片倒卵形花盘裂片6,与萼片对生,上部弯曲,覆盖花药;
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