/ Thesaurus / R Synonyms of red shrubby penstemon Find synonyms for: Noun1. red shrubby penstemon, redwood penstemon, shrub, bushusage: low branching dark green shrub with bunches of brick-red flowers at ends of branches; coastal ranges and foothills of northern CaliforniaWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language