以下为句子列表：
英文: Flowers pale yellow, with red or reddish-purple blotches at throat; lower sepal saccate, 1.7-2.4 cm long, base abruptly constricted into an incurved, 1.5-2 cm long spur; dorsal petal semi-cucullate, broadly ovate or semi-orbicular, 1-1.3 cm long, 1.2-1.4
中文: 花淡黄色，喉部膨大，具红色或紫红色斑点；唇瓣囊状，长1.7-2.4厘米，基部收缩成内弯、长1.5-2厘米的距；旗瓣半僧帽状，宽卵形至半圆形，长1-1.3厘米，宽1.2-1.4厘米，背面有龙骨状突起；翼瓣长2.7-3厘米，上裂片长约为下裂片的1/3，长圆状倒卵形，下裂片倒卵状匙形，长1.8-2.1厘米，宽0.9-1.2厘米。
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英文: Sepal One of the structures situated immediately below the petals of a flower.
中文: 萼片：一朵花中位置紧接在花瓣下方的结构。
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英文: The phase of carpel differentiation and pistil differentiation were were relatively short, only about - days, and the phase from inflorescence primordium differentiation to sepal differentiation is relatively long.
中文: 其中雄蕊分化期、雌蕊分化期分化速度最快，持续时间仅为 ～d，而从花序原基分化期至小花花萼分化期分化较慢。
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