Ross, D. Kastner, T. Kilday, L. Mercurio, C. Kohen, G. (1998) Inventory Completion Report, Sensitive Plant Suvey, Lincoln National Forest, Field Notes. Project Name: Kuenzler Survey. Guadalupe Ranger Distirct, Lincoln National Forest, USFS. 4 p.

• Echinocereus fendleri var. kuenzleri