Pterocactus tuberosus (German Wikipedia)

Analysis of information sources in references of the Wikipedia article "Pterocactus tuberosus" in German language version.

refsWebsite

Global rank German rank

3biodiversitylibrary.org

387^th place

297^th place

2^nd place

3^rd place

1iucnredlist.org

88^th place

196^th place

biodiversitylibrary.org

L. Pfeiffer: Enumeratio diagnostica Cactearum hucusque cognitarum. Berlin 1837, S. 146 (online).
K. Schumann: Neue Kakteen aus dem Andengebiet. In: Monatsschrift für Kakteenkunde. Band 7, Nummer 1, 1897, S. 6 (online).
N. L. Britton, J. N. Rose: The Cactaceae. Descriptions and Illustrations of Plants of the Cactus Family. Band I. The Carnegie Institution of Washington, Washington 1919, S. 32–33 (online).

doi.org

N. P. Taylor, J. Iliff: Nomenclatural notes on Andean Opuntioideae (Cactaceae). In: Bradleya. Band 14, 1996, S. 17–19 (doi:10.25223/brad.n14.1996.a4).

iucnredlist.org

apiv3.iucnredlist.org

Pterocactus tuberosus in der Roten Liste gefährdeter Arten der IUCN 2014.3. Eingestellt von: Demaio, P., Perea, M. & Trevisson, M., 2013. Abgerufen am 17. Januar 2015.