豇豆,一名“豆角”,属豆科一年生草本植物,我国南北各地均有栽培,自古为食用豆类。豇豆的品种繁多,荚果较其它豆类长,呈绿、赤、紫、青灰等色;种子肾形,红、褐、紫、白、黑,各色皆有;种子或10余粒或20余粒,因种而异。园艺学上,通常依其荚形长短及食用部位,分“豇豆”、“长豇豆”和“饭豇豆”三类。“豇豆”、“长豇豆”的荚果长而 Cowpea, a “beans”, is a legume annual herb, north and south of our country have cultivated since ancient times for the consumption of legumes. The variety of cowpea, pod longer than other legumes, was green, red, purple, gray and other colors; seed kidney-shaped, red, brown, purple, white, black, all have; seed or more than 10 or 20 , Vary by species. Horticulture, usually according to its pod length and edible parts, divided into “cowpea”, “long cowpea” and “rice cowpea” three categories. “Vigna”, “long cowpea” pod long and