velvet bean

noun
  1. a vine, Mucuna deeringiana, of the legume family, having long clusters of purplish flowers and densely hairy pods, grown in warm regions for forage or as an ornamental.

Origin of velvet bean

An Americanism dating back to 1895–1900
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018