yard-long beanyard-long bean
A type of cowpea (Vigna unguiculata subsp. sesquipedalis) native to southern Asia, having drooping pods that can grow up to a yard long and are eaten as a vegetable. Also called asparagus bean.
(plural yardlong beans)
- A vigorous climbing annual vine, Vigna unguiculata sesquipedalis grown primarily for its strikingly long (35-75 cm) immature pods with uses very similar to that of a green bean.