Pediocactus simpsonii var. paradinei
database: NODC Taxonomic Code;
database: The PLANTS Database; National Plant Data Center, NRCS, USDA. Baton Rouge, LA 70874-4490 USA. http://plants.usda.gov
database: The PLANTS Database; National Plant Data Center, NRCS, USDA. Baton Rouge, LA 70874-4490 USA. http://plants.usda.gov
CD-ROM: Checklist of CITES Species Part 1 CITES species index; UNEP-WCMC (Comps.) 2011. Checklist of CITES species (CD-ROM). CITES Secretariat, Geneva, Switzerland, and UNEP-WCMC, Cambridge, United Kingdom. ISBN 2-88323-030-7. Available online at http://www.cites.org/eng/resources/pub/checklist11/index.html or from CITES Secretariat, Chemin des Anémones, 1219 Châtelaine, Genève, Switzerland
U. S. Fish and Wildlife Service 1999-10-25. Federal Register, vol. 64, no. 205. . . 57534-57547. . .
David F. Mitchell, ITIS Data Development Specialist: CITES: Appendix I adopted at the 15th meeting of the Conference of the Parties (Doha, 2010)
David F. Mitchell, ITIS Data Development Specialist: US ESA: No longer a candidate species because more abundant and widespread than previously believed and not subject to the degree of threats to warrant status according to notice of review, as published in Federal Register Volume 64, Number 205, Pages 575
