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This species is accepted, and its native range is S. California to Arizona and Mexico (Baja California, Sonora, Guadelupe Island).
A specimen from Kew's Herbarium

Native to:

Arizona, California, Mexican Pacific Is., Mexico Northwest

Euphorbia melanadenia Torr. & A.Gray appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Jan 1, 2008 Pringle, C.G. [800], Chihuahua K000476484
Lobb, W. [526], California K001080281

First published in J.Torrey, Pacif. Railr. Rep. Whipple, Bot. 4(5; 4): 135 (1857)

Accepted by

  • Flora of North America Editorial Committee (2016). Flora of North America North of Mexico 12: 1-603. Oxford University Press, New York, Oxford.
  • Govaerts, R., Frodin, D.G. & Radcliffe-Smith, A. (2000). World Checklist and Bibliography of Euphorbiaceae (and Pandaceae) 1-4: 1-1622. The Board of Trustees of the Royal Botanic Gardens, Kew.
  • Yang, Y., Riina, R., Morawetz, J.J., Haevermans, T., Aubriot, X. & Berry, P.E. (2012). Molecular phylogenetics and classification of Euphorbia subgenus Chamaesyce (Euphorbiaceae) Taxon 61: 764-789.

Herbarium Catalogue Specimens
Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0