Ward, R. Grams, S. Hewitt, A. Meissener, J. (2001) Inventory Completion Report, Sensitive Plant Survey, Lincoln National Forest, Field Notes. Project Name: Echinocereus fendleri var. kuenzleri. Guadalupe Ranger District, Lincoln National Forest, USFS. p 4

• Echinocereus fendleri var. kuenzleri