Checklist of CITES Species Part 1 CITES species index, CD-ROM (version 2011)
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
The International Plant Names Index (IPNI), 2007 - 2013, database (version 2013)
The International Plant Names Index, botanical information system from the Royal Botanic Gardens, Kew, the Harvard University Herbaria, and the Australian National Herbarium, available at http://www.ipni.org/index.html
Journal/Book Name, Vol. No.:
The New Cactus Lexicon: Text
x + 373
Milborne Port, England
Continental US, Native
CITES: Appendix II listed under Cactaceae, adopted at the 15th meeting of the Conference of the Parties (Doha, 2010)
Coryphantha echinus (Engelm.) Britton & Rose, published in 1923, is a later isonym of Coryphantha echinus (Engelm.) Orcutt, published in 1922
ITIS taxonomy is based on the latest scientific consensus available,
and is provided as a general reference source for interested parties.
However, it is not a legal authority for statutory or regulatory purposes.
While every effort has been made to provide the most reliable and up-to-date
information available, ultimate legal requirements with respect to species
are contained in provisions of treaties to which the United States is a
party, wildlife statutes, regulations, and any applicable notices that have
been published in the Federal Register. For further information on U.S.
legal requirements with respect to protected taxa, please contact the
U.S. Fish and Wildlife Service.