Haworthia nigra (German Wikipedia)

Analysis of information sources in references of the Wikipedia article "Haworthia nigra" in German language version.

refsWebsite
Global rank German rank
6th place
40th place
387th place
297th place

archive.org

  • Adrian Hardy Haworth: Decas secunda novarum Plantarum Succulentarum. In: Philosophical Magazine. Band 64, 1824, S. 302 (online).

biodiversitylibrary.org

  • John Gilbert Baker: A Synopsis of Aloineae and Yuccoideae. In: Journal of the Linnean Society. Botany. Band 18, London 1881, S. 203 (online).