Opuntia fragilis, known by the common names brittle pricklypear and little prickly pear, is a prickly pear cactus native to much of western North America as well as some midwestern states such as Illinois, Iowa, Wisconsin and Michigan. It also occurs in several Canadian provinces. It is known from farther north than any other cactus,[3] occurring at as far as 56°N latitude in British Columbia.[4] There is an isolated and possibly genetically unique population in Eastern Ontario known as the "Kaladar population".[5]
^Pinkava, D.J.; Puente, R.; Baker, M. (2017) [amended version of 2013 assessment]. "Opuntia fragilis". IUCN Red List of Threatened Species. 2017: e.T151913A121572262. doi:10.2305/IUCN.UK.2017-3.RLTS.T151913A121572262.en. Retrieved 16 September 2021.
^NatureServe (2024). "Opuntia fragilis". Arlington, Virginia. Retrieved 6 January 2024.
^C.Michael Hogan. 2011. Cactus. Topic ed. Arthur Dawson. Ed.-in-chief Cutler J.Cleveland. Encyclopedia of Earth. National Council for Science and the Environment. Washington DC
^Gorelick, Root (2015). "Northern Range Limit of Opuntia fragilis and the Cactaceae is 56°N, Not 58°N". Madroño. 62 (2): 115–123. doi:10.3120/0024-9637-62.2.115. S2CID 85912474.
^Mottiar, Yaseen; Chafe, Paul D.J.; Ribbens, Eric (2015). "Imperfect Flowers of Opuntia fragilis in Kaladar, Ontario". Haseltonia. 20: 22–25. doi:10.2985/026.020.0105. S2CID 84131774.
Opuntiafragilis, known by the common names brittle pricklypear and little prickly pear, is a prickly pear cactus native to much of western North America...
the achakana genus Opuntia, the prickly pears Opuntia engelmannii Opuntia ficus-indica Opuntia matudae OpuntiafragilisOpuntia basilaris genus Pachycereus...
ponderosa), big sagebrush (Artemisia tridentata), prickly pear cactus (Opuntiafragilis in this case), rattlesnakes, black widow spiders and Lewis's woodpecker...
generation per year. The larvae feed on Opuntia species, including Opuntiafragilis, Opuntia macrorhiza and Opuntia polyacantha. Pupation takes place in...
locally abundant. Other plants in the habitat include Opuntia polyacantha and Opuntiafragilis. Butterworth, C.; Porter, J.M. (2017) [amended version...
- Halimeda J.V. Lamouroux, Micronesicae Hillis-Col, Opuntia J. Agardh ex De Toni, Pseudo-opuntia J. Agardh ex De Toni, and Rhipsalis J. Agardh ex De Toni...
monoculture of honey mesquite (Prosopis glandulosa), with pricklypear (Opuntia engelmannii var. lindheimeri), and non-native grasses in the understory...
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