Castilleja Hispida, or more commonly know as Harsh Indian Paintbrush, is a subshrub forb/herb with yellow-green foliage and red flowers of the genus Castilleja. It has a rapid growth rate and a height of 1.5 feet at maturity. Its duration is perennial which means it will grow year after year. It's active growth period is spring and summer, blooms during mid spring, is intolerant of shade and is routinely available commercially. Castilleja Hispida or Harsh Indian Paintbrush's floral region is North America US Lower 48, specifically in the states of California, Idaho, Montana, Nevada, Oregon and Washington.
Alabama Alaska Arizona Arkansas California Colorado Connecticut Delaware Florida Georgia Hawaii Idaho Illinois Indiana Iowa Kansas Kentucky Louisiana Maine Maryland Massachusetts Michigan Minnesota Mississippi Missouri Montana Nebraska Nevada New Hampshire New Jersey New Mexico New York North Carolina North Dakota Ohio Oklahoma Oregon Pennsylvania Rhode Island South Carolina South Dakota Tennessee Texas Utah Vermont Virginia Washington West Virginia Wisconsin Wyoming