Opuntia polyacantha (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Opuntia polyacantha" in English language version.

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1natureserve.org

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800^th place

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1inaturalist.ca

low place

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360^th place

1lewis-clark.org

low place

low place

doi.org

dx.doi.org

Heil, K., Terry, M. & Corral-Díaz, R. 2017. Opuntia polyacantha (amended version of 2013 assessment). The IUCN Red List of Threatened Species 2017: e.T151747A121565302. https://dx.doi.org/10.2305/IUCN.UK.2017-3.RLTS.T151747A121565302.en. Downloaded on 16 September 2021.
Argus, George W. (1982). Atlas of the rare vascular plants of Ontario. Ottawa: Botany Division, National Museum of Natural Sciences = Division de la botanique, Musée national des sciences naturelles. doi:10.5962/bhl.title.51429. ISBN 0-662-50415-1.

doi.org

Argus, George W. (1982). Atlas of the rare vascular plants of Ontario. Ottawa: Botany Division, National Museum of Natural Sciences = Division de la botanique, Musée national des sciences naturelles. doi:10.5962/bhl.title.51429. ISBN 0-662-50415-1.

efloras.org

Opuntia polyacantha. Flora of North America. Retrieved May 11, 2011.

fs.fed.us

Johnson, K. A. 2000. Opuntia polyacantha. In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). Retrieved May 11, 2011.

inaturalist.ca

Stephen, Derek (February 2021). "Plains Pricklypear (Variety Opuntia polyacantha polyacantha)". iNaturalist Canada. Retrieved September 17, 2022.

lewis-clark.org

"Prickly Pear | Discovering Lewis & Clark ®". April 19, 2021.

natureserve.org

explorer.natureserve.org

NatureServe (2024). "Opuntia polyacantha". Arlington, Virginia. Retrieved January 6, 2024.

opuntiads.com

"Opuntia polyacantha at Opuntia Web". January 24, 2012.

umich.edu

herb.umd.umich.edu

University of Michigan - Dearborn: Native American Ethnobotany (Opuntia polyacantha)

usda.gov

plants.usda.gov

Opuntia polyacantha. USDA Plants Profile. Retrieved May 11, 2011.

worldcat.org

search.worldcat.org

Taylor, Ronald J. (1994) [1992]. Sagebrush Country: A Wildflower Sanctuary (rev. ed.). Missoula, MT: Mountain Press Pub. Co. p. 38. ISBN 0-87842-280-3. OCLC 25708726.