Lupinus texensis, the Texas bluebonnet or Texas lupine is a species of lupine endemic to Texas, plus the Mexican states of Coahuila, Nuevo León, and Tamaulipas. With other related species of lupines also called bluebonnets, it is the state flower of Texas. 1.5" silver, soft enamel pin with two posts to keep this lil darlin' securely in place, y'all.