Peniocereus greggii
Houde-Nethers, D. 1996. New Mexico rare plant occurrence record data sheet. Physical Science Laboratory. April 1996.
McIntosh, L. 1997. Plant occurrence record for Peniocereus greggii.
Magee, G. 1996. New Mexico rare occurrence record data sheet for Peniocereus greggii.
Scarbrough, L. 1990. Letter to Bob Sivinski regarding locations for three species, ^Coryphantha sneedii, ^Oenothera organensis, and ^Peniocereus greggii. 3 pages included with map.
Howard, M. 2011. BLM Special Status Plants Data. Plant Conservation Program, Bureau of Land Management, New Mexico State Office.