a spiny bush, Pickeringia montana, of the legume family, having large purple flowers and sometimes forming dense thickets in the Pacific coast regions of the U.S.
Origin of chaparral pea
An Americanism dating back to 1905–10
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for chaparral pea
a thorny leguminous Californian shrub, Pickeringia montana, with reddish-purple showy flowers
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012