Coryphantha pycnacantha (German Wikipedia)

Analysis of information sources in references of the Wikipedia article "Coryphantha pycnacantha" in German language version.

refsWebsite
Global rank German rank
6th place
40th place
2,106th place
139th place
88th place
196th place

archive.org

  • Nova Acta Physico-Medica Academiae Caesareae Leopoldino-Carolinae Naturae Curiosorum Exhibentia Ephemerides sive Observationes Historias et Experimenta… Band 16, Nummer 1, 1832, S. 325, Tafel 17 (online).

google.de

books.google.de

  • Les Cactées. Histoire, Patrie Organes de Vegetation, Inflorescence Culture etc. Paris 1868, S. 35 (online).

iucnredlist.org