Definition of mescal bean in English English dictionary
A genus (Calia) of three or four species of shrubs or small trees in the subfamily Faboideae of the pea family Fabaceae, native to southwestern North America from western Texas to New Mexico and Arizona in the United States, and south through Chihuahua, Coahuila and Nuevo León in northern Mexico
shrub or small tree having pinnate leaves poisonous to livestock and dense racemes of intensely fragrant blue flowers and red beans