Taxon: Echinocereus viridiflorus Engelm. var. davisii (Houghton) W. T. Marshall

Synonym of Echinocereus davisii Houghton

Species on the following lists:

• Center for Plant Conservation (accepts this name)
  
• U.S. Fish & Wildlife Service - Endangered (accepts this name)
  
• Check conservation status and distribution in NatureServe Explorer database

References:

• Anderson, E. F. 2001. The cactus family. [= E. viridiflorus subsp. davisii].
• Benson, L. 1982. The cacti of the United States and Canada. [accepts].
• Center for Plant Conservation. Center for Plant Conservation National Collection of Endangered Plants (on-line resource).
• FNA Editorial Committee. 1993–. Flora of North America.
• Kartesz, J. T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. [accepts].
• Taylor, N. P. 1985. The genus Echinocereus. [accepts].
• United States Fish and Wildlife Service. U.S. Fish & Wildlife Service. Species Information: threatened and endangered animals and plants (on-line resource). [accepts].

Check other web resources for Echinocereus viridiflorus Engelm. var. davisii (Houghton) W. T. Marshall:

• PLANTS: USDA-NRCS Database of Plants of the United States and its Territories
• BONAP: North American Plant Atlas of the Biota of North America Program
• TROPICOS: Nomenclatural and Specimen Database of the Missouri Botanical Garden

Abbreviations & symbols in GRIN Taxonomy

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