snailflower

[ sneyl-flou-er ]
/ ˈsneɪlˌflaʊ ər /

noun

a tropical vine, Vigna caracalla, of the legume family, having fragrant, yellowish or purplish flowers, a segment of which is shaped like a snail's shell.
Also called corkscrew flower.

Origin of snailflower

First recorded in 1680–90; snail + flower