Indian paintbrush flowers.
Indian paintbrush definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
any of a large genus (Castilleja) of plants of the figwort family, with brilliantly colored orange or red flowers and red or yellow upper leaves
Indian paintbrush definition by American Heritage Dictionary
Any of various partly parasitic plants of the genus Castilleja, having spikes of flowers surrounded by showy, brightly colored bracts. Also called painted cup.