Sivinski, R.C. (1999) Effects of a Natural Fire on a Kuenzler's Hedgehog Cactus (Echinocereus fendleri var. kuenzleri) and Nylon Hedgehog Cactus (Echinocereus viridiflorus) Population in the Southeastern New Mexico. Retrieved from Guadalupe Ranger Distric

• Echinocereus fendleri var. kuenzleri
• Echinocereus viridiflorus