Opuntia chisosensis (German Wikipedia)

Analysis of information sources in references of the Wikipedia article "Opuntia chisosensis" in German language version.

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archive.org

David J. Ferguson: Opuntia chisosensis (Anthony) Comb. Nov. In: Cactus and Succulent Journal. Band 58, Nr. 3, Los Angeles 1986, S. 124 (online).

doi.org

Margery Anthony: The Opuntiae of the Big Bend Region of Texas. In: American Midland Naturalist. Band 55, Nr. 1, 1956, S. 252 (doi:10.2307/2422336).