corkscrew flower

Từ điển Oxford Learners Wordfinder Dictionary

noun

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
• Syn:
snailflower, snail-flower, snail flower, snail bean, Vigna caracalla, Phaseolus caracalla
• Hypernyms:
legume, leguminous plant
• Member Holonyms:
Vigna, genus Vigna