The Cactaceae of Utah are revised. Keys to genera, species, and infraspecific taxa are provided. The taxa are provided with descriptions and geographical and other pertinent data. New nomenclatural combinations include Sclerocactus pubispinus (Englem.) L. Benson var. spinosior (Engelm.) Welsh and Sclerocactus whipplei (Englem.) Britt. & Rose var. glaucus (K. Schum.) Welsh.
Welsh, Stanley L.
"Utah flora: Cactaceae,"
Great Basin Naturalist: Vol. 44
, Article 4.
Available at: http://scholarsarchive.byu.edu/gbn/vol44/iss1/4