Echinocereus fendleri var. kuenzleri
Fragia, S. Sando, M. Finley, M. Stewart, P. Storey, W. 2013. Unpublished map showing survey locations, mostly for Echinocereus fendleri var. kuenzleri.
Fragua, S. 2010. Unpublished map of survey routes, mostly concerning Echinocereus fendleri var. kuenzleri.
Fragua, S. 2004. Unpublished map of survey locations, mostly concerning Echinocereus fendleri var. kuenzleri.
Stewart, C. Camero, A. Tapia, R. (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.
Paul, L. 2003. Unpublished map of survey routes, mostly concerning Echinocereus fendleri var. kuenzleri.
Fragua, S. 2003. Unpublished map of survey locations, mostly pertaining to Echinocereus fendleri var. kuenzleri.
Porch, D. Castello, J. Montoya, 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. 4 p.
Miessener, J. Hewitt, A. (2001) Inventory Completion Report, Sensitive Plant Survey, Lincoln National Forest, Field Notes. Project Name: Echinocereus fendleri var. kuenzleri. Guadalupe Ranger Distirct, Lincoln National Forest, USFS. 4 p.
Chauvin, Y. and C. Reasner. 2015. Surveys for Echinocereus fendleri var. kuenzleri at Ft. Stanton. Natural Heritage New Mexico.
Baker, M. (2008). CD containing Kunzler survey data.