Flowers: Sepals rounded at tips, corolla yellow, outside with red lines.
花：萼片圆尖，花冠黄色，外面有红线。
Perennial tropical American vine cultivated for its racemes of showy yellow and purple flowers having the corolla keel coiled like a snail shell; sometimes placed in genus phaseolus.
热带美洲一种多年生藤本植物，有时由于美丽的总状花序的紫色和黄色而栽培，花冠的龙骨瓣盘卷像一个蜗牛的壳。
Bud scales usually deciduous. Corolla white, or yellow blushed to pink, to pink; ovary eglandular.
芽鳞通常落叶。花冠白色，或黄色到粉红色，到粉红色；子房无腺体。
Flowers: Calyx pink at base, light green above, sepals ascending, very unequal, to 13 mm; petals valvate; corolla 7, 5-10 mm long, yellow above, orange below.
花：花萼基部粉色，上部浅绿色，萼片上翘，大小极为不均，最长约13毫米；花瓣镊合状；花冠7,5—长10毫米，上部黄色，下方为橙色。
Flowers: Calyx cup-shaped, sepals upcurved, corolla campanulate, 5-6 mm long, yellow.
花萼杯状，萼片上弯，花朵瓮状，5—6毫米长，黄色。
Flowers: Calyx cup-shaped, sepals upcurved, corolla campanulate, 5-6 mm long, yellow.
花萼杯状，萼片上弯，花朵瓮状，5—6毫米长，黄色。
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