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Great Basin Naturalist

Abstract

The Chenopodiaceae for Utah are revised. Descriptions of the family and of its genera and species are included. Keys to the genera, species, and infraspecific taxa are provided, along with pertinent discussion. Treated are 18 genera, 56 species, and 13 infraspecific taxa. Newly described taxa are Atriplex canescens (Pursh) Nutt. var. gigantea Welsh & Stutz, Ceratoides lanata (Pursh) J. T. Howell var. ruinina Welsh, and Chenopodium capitatum (L.) Asch. var. parvicapitatum Welsh. New nomenclatural combinations are: Atriplex canescens (Pursh) Nutt. var. occidentalis (Torr. & Frem.) Welsh & Stutz; Atriplex gardneri (Moq.) D. Dietr.—var. bonnevillensis (C. A. Hanson) Welsh, var. cuneata (A. Nels.) Welsh, var. falcata (Jones) Welsh, and var. welshii (C. A. Hanson) Welsh; Atriplex patula L. var. triangularis (Willd.) Thorne & Welsh; Atriplex saccaria Wats. var. caput-medusae (Eastw.) Welsh; Zuckia brandegei (Gray) Welsh & Stutz, and Zuckia brandegei var. arizonica (Standl.) Welsh.

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