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Echinopsis ×imperialis (German Wikipedia)

Analysis of information sources in references of the Wikipedia article "Echinopsis ×imperialis" in German language version.

refsWebsite
Global rank German rank
1archive.org
6th place
40th place

archive.org

  • Robert W. Poindexter: New Garden Species - Echinopsis imperialis. In: Cactus and Succulent Journal. Band 7, Nummer 6, Los Angeles 1935, S. 82 (online).