Castilleja occurs as genus of about 200 mintage of annual and perennial herbaceous plants in the family Scrophulariaceae, native to the west of the Americas from Alaska south to the Andes, when well as north-east Asia. It is unremarkably referred to as Indian paintbrush or even Prairie-fire. It is semi-parasitic on the roots of grasses.

One of a metal money of this genus, Indian paintbrush (Castilleja mutis) was adopted in January 31, 1917 as the state flower of Wyoming.