A flower is made up of four parts: the sepal, petal, stamen and pistil.
一朵花由四部分组成：花萼，花瓣，雄蕊和雌蕊。
一个萼片，一叶花瓣，和一根荆棘。
The hood-shaped sepal or corolla of some flowers.
无距萼片披针形；上部萼片狭卵形或长圆形。
The sepal is usually green. It can protect the flower bud.
花萼通常是绿色的，它能保护花芽。
The sepal is usually green. It can protect the flower bud.
花萼通常是绿色的，它能保护花芽。
Flowers yellowish, dorsal sepal oblong, 1.5 cm long, margin thickly red-ciliate;
中萼片长圆形，长1.5厘米，边缘具肥厚的红色缘毛；
Photosynthesis of flower organs was also measured. Stomata were on the surface of sepal, vexilla, keel, anther, gynophore, ovary, and style but not wing or filaments.
结果发现： 除了翼瓣和花丝表皮以外，气孔均分布在花朵的其它器官表皮上， 如花萼、旗瓣、龙骨瓣、雌蕊托、子房、花柱和花药。
Photosynthesis of flower organs was also measured. Stomata were on the surface of sepal , vexilla, keel, anther, gynophore, ovary, and style but not wing or filaments.
结果发现：除了翼瓣和花丝表皮以外，气孔均分布在花朵的其它器官表皮上， 如花萼、旗瓣、龙骨瓣、雌蕊托、子房、花柱和花药。
Any of numerous orchids of the genus pterostylis having leaves in a basal rosette and green flowers often striped purple or brown or red with the dorsal sepal incurved to form a hood.
pterostylis属的任何一种兰花，基生莲座叶丛，花绿色、常有紫色、褐色或红色条纹，萼片背部向内弯曲成盔状。
Sepal One of the structures situated immediately below the petals of a flower.
萼片：一朵花中位置紧接在花瓣下方的结构。
Sepal One of the structures situated immediately below the petals of a flower.
一朵花中位置紧接在花瓣下方的结构。
Sepal One of the structures situated immediately below the petals of a flower.
一朵花中位置紧接在花瓣下方的结构。
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