Echinocereus fendleri var. kuenzleri
Chauvin, Y., A. Kennedy, and K. Wild. 2001. Survey for Kuenzleri's Hedgehog Cactus (Echinocereus fendleri var. kuenzleri). United States Forest Service (USFS) Regional Office, Albuquerque, NM. p. 32.
Bleakly, David. 2001. Echinocereus fendleri var. kuenzleri occurrences in the survey corridor along US-54, Lincoln County, New Mexico. Blue Earth Environmental, Santa Fe, New Mexico.. 1 p.
Ward, R. Grain, S. Hewitt, A. Miessener, J. (2000) Inventory Completion Report, Sensitive Plant Survey, Lincoln National Forest, Field Notes. Porject Name: Echinocereus fendleri keunzleri. Guadalupe Ranger District, Lincoln National Forest, USFS. 4 p.
Baker, M. (2007) Bundled Botanical Surveys for 2004-2009 Regarding Echinocereus fendleri var. kuenzleri. Smokey Bear Ranger District, Lincoln National Forest, USFS. 73 p.
Unknown (2008) Collected Documents on Multiple Tracked Species for 2008. Smokey Bear Ranger District, Lincoln National Forest, USFS. 208 p.
Fragua, S. R. (2005) Inventory Completion Report, Sensitive Plant Survey, Lincoln National Forest, Field Notes. Project Name: FY 2005 Kuenzler Survey. Guadalupe Ranger District, Lincoln National Forest, USFS. 4 p.
Fragua, S. (2005) Echinocereus fendleri var. kuenzleri 514 Total population site report. For Guadalupe RD, Lincoln NF, USFS.
Unknown (2004) FY 2004 Enchinocereus var. fendleri kuenzleri Cactus Survey, T23S/R20E, Sections 33,34,35,36,3,2,1 & 11. Retrieved from Guadalupe Ranger Distict, Lincoln National Forest, USFS. 2 p.
Barker, Linda M. 2002. Lincoln National Forest inventory completion report, sensitive plant survey field notes for Kuenzler's hedgehog. . 47 p.
Barker, L. 1998. Email to M. Altenbach with explanation of Rio Ruidoso Allotment Kuenzler's Exclosure. 1 p.