DeBruin, E. 1992. Survey for Astragalus kerrii and Echinocereus fendleri var. kuenzleri in the Capitan Mountains Area of the Lincoln National Forest. Unpubl. report by New Mexico Natural Heritage Program to USDA Forest Service. 50 p.

• Echinocereus fendleri var. kuenzleri
• Astragalus kerrii