Amsonia (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Amsonia" in English language version.

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1web.archive.org

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archive.org

Pringle, James S. (2004). "History and Eponymy of the Genus Name Amsonia (Apocynaceae)". SIDA, Contributions to Botany. 21 (1): 379–387. Retrieved 9 November 2023.

ars-grin.gov

"Genus: Amsonia Walter". Germplasm Resources Information Network. United States Department of Agriculture. 2003-03-14. Archived from the original on 2012-10-12. Retrieved 2011-09-23.

bonap.net

Biota of North America Program 2013 county distribution maps

efloras.org

Flora of China Vol. 16 Page 156 水甘草属 shui gan cao shu Amsonia Walter, Fl. Carol. 98. 1788.

itis.gov

"Amsonia". Integrated Taxonomic Information System. Retrieved 2011-09-23.

kew.org

apps.kew.org

"World Checklist of Selected Plant Families". Retrieved May 21, 2014.

web.archive.org

"Genus: Amsonia Walter". Germplasm Resources Information Network. United States Department of Agriculture. 2003-03-14. Archived from the original on 2012-10-12. Retrieved 2011-09-23.