Penstemon alamosensis
Frazier, C.K. 1997. Field survey of the San Andres mountains for Polygala rimulicola, Steyermark var. mescalerorum (Mescalero milkwort) Wendt & Todsen and Penstemon alamosensis (alamo penstemon). Unpubl. report by Dept. of Biology, UNM prepared for NM Ene
Malaby, S. 1988. Penstemon alamosensis survey for the Cloudcroft Ranger District, Lincoln National Forest - region 3, USFS.
Fletcher, R. Sept 26-27, 1983. Lincoln National Forest trip report.
Fletcher, R. 1978. USDA Forest Service threatened and endangered species habitat study area notes for Penstemon alamosensis in Dog Canyon.
Mehlhop, P. 1997. Draft management plan for Holloman Air Force Base.
Boczkiewicz, S. 1995. Specimen tag information from the New Mexico State University herbarium, Las Cruces. 14 December 1995.
Lee-Chadde, S. and L.F. Huenneke. 1997. A handbook of rare, threatened and endangered plant species of the Sacramento Mountains. Dept. of Biology, New Mexico State University, Las Cruces, NM 88003. Draft. pp. 109.
Howard, M. 2011. BLM Special Status Plants Data. Plant Conservation Program, Bureau of Land Management, New Mexico State Office.