Definitions for vigna caracalla
snailflower, snail-flower, snail flower, snail bean, corkscrew flower, Vigna caracalla, Phaseolus caracalla(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
Vigna caracalla is a leguminous vine from the family Fabaceae, originating in tropical South America and Central America. The species is named caracalla, a corruption of the Portuguese caracol, meaning snail. This perennial vine has fragrant flowers said to be reminiscent of hyacinths - with a distinctive curled shape, giving rise to the common names corkscrew vine, snail vine, snail creeper, or snail bean. This vine is hardy in zones 9 and above, liking full sun and consistently damp soil. It prefers high heat and humidity. In colder zones, it does well in a pot if it is overwintered inside. Thomas Jefferson called this plant "the most beautiful bean in the world".
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