Natternköpfe (German Wikipedia)

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

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bgbm.org

ww2.bgbm.org

doi.org

  • F. Forcella, J. T. Wood, S. P. Dillon: Characteristics distinguishing invasive weeds within Echium (Bugloss). In: Weed Research. Band 26, Nr. 5, 1986, S. 351–364, doi:10.1111/j.1365-3180.1986.tb00718.x.
  • Gianluigi Bacchetta, Salvatore Brullo, Federico Selvi: Echium anchusoides (Boraginaceae), a new species from Sardinia (Italy). In: Nordic Journal of Botany. Band 20, Nr. 3, 2000, S. 271–278, doi:10.1111/j.1756-1051.2000.tb00743.x (englisch, ondeweb.net [PDF; 3,9 MB; abgerufen am 28. September 2021]).
  • S. Scholz: Echium handiense. The IUCN Red List of Threatened Species. 2011, e.T61658A12518563. doi:10.2305/IUCN.UK.2011-1.RLTS.T61658A12518563.en
  • Maria M. Romeiras, Helena C. Cotrim, Maria C. Duarte, Maria S. Pais: Genetic diversity of three endangered species of Echium L. (Boraginaceae) endemic to Cape Verde Islands. In: Biodiversity and Conservation, Volume 16, Issue 2, Springer 2007, S. 547–566. doi:10.1007/s10531-006-6734-0

efloras.org

  • Gelin Zhu, Harald Riedl, Rudolf V. Kamelin: Echium. In: Wu Zheng-yi, Peter H. Raven (Hrsg.): Flora of China. Volume 16: Gentianaceae through Boraginaceae. Science Press / Missouri Botanical Garden Press, Beijing / St. Louis 1995, ISBN 0-915279-33-9, S. 357 (englisch, textgleich online wie gedrucktes WerkPDF-Datei).

floradecanarias.com

floraiberica.es

  • Benito Valdés: Echium L. In: Santiago Castroviejo, C. Andrés, M. Arista, M. P. Fernández Piedra, M. J. Gallego, P. L. Ortiz, C. Romero Zarco, F. J. Salgueiro, S. Silvestre, Alejandro Quintanar (Hrsg.): Flora Ibérica. Plantas Vasculares de la Península Ibérica e Islas Baleares. Vol. XI. Gentianaceae – Boraginaceae. Real Jardín Botánico, CSIC, Madrid 2012, ISBN 978-84-00-09415-7, S. 413–446 (floraiberica.es [PDF; 619 kB]).

harvard.edu

flora.huh.harvard.edu

  • Gelin Zhu, Harald Riedl, Rudolf V. Kamelin: Echium. In: Wu Zheng-yi, Peter H. Raven (Hrsg.): Flora of China. Volume 16: Gentianaceae through Boraginaceae. Science Press / Missouri Botanical Garden Press, Beijing / St. Louis 1995, ISBN 0-915279-33-9, S. 357 (englisch, textgleich online wie gedrucktes WerkPDF-Datei).

jstor.org

  • Hartmut H. Hilger, Uta-Regina Böhle: Pontechium: a new genus distinct from Echium and Lobostemon (Boraginaceae). In: Taxon. Band 49, Nr. 4, 2000, S. 737–746, JSTOR:1223974.

ondeweb.net

lnx.ondeweb.net

  • Gianluigi Bacchetta, Salvatore Brullo, Federico Selvi: Echium anchusoides (Boraginaceae), a new species from Sardinia (Italy). In: Nordic Journal of Botany. Band 20, Nr. 3, 2000, S. 271–278, doi:10.1111/j.1756-1051.2000.tb00743.x (englisch, ondeweb.net [PDF; 3,9 MB; abgerufen am 28. September 2021]).

plantasyhongos.es

plantsoftheworldonline.org

rareplants.es

us.es

institucional.us.es

usda.gov

plants.usda.gov

web.archive.org