chaparral pea: spiny evergreen xerophytic shrub having showy rose and purple flowers and forming dense thickets; of dry rocky mountain slopes of California
shrub: a low woody perennial plant usually having several major stems
leguminosae: a large family of trees, shrubs, vines, and herbs bearing bean pods; divided for convenience into the subfamilies Caesalpiniaceae; Mimosaceae; Papilionaceae