The Texas horned lizard (Phrynosoma cornutum) is one of about 14 North American species of spikey-bodied reptiles called horned lizards. P. cornutum ranges from Colorado and Kansas to northern Mexico (in the Sonoran desert), and from southeastern Arizona to Texas. There are also isolated, introduced populations in the Carolinas, Georgia, and northern Florida. Texas horned lizards may also be native to Louisiana and Arkansas.