A Utah Flora
A comprehensive treatment of the vascular flora of Utah is presented. Keys are provided to families, genera, species, and infraspecific taxa (when present). Taxa are described, ecological data is given, and geographical information is provided. County distribution in Utah is given for each species and infraspecific taxon. General geographical information is given for taxa that extend beyond the boundaries of Utah. Chromosome numbers are provided for each taxon, where that information was available in literature. Indigenous taxa include some 2,572 species and 355 infraspecific taxa, or a total of 2,927. Introduced species number some 580, and the total taxa treated in the flora is 3,507. New nomenclatural proposals include Mertensia lanceolata var. nivalis (Wats.) Higgins stat. nov.; Chrysothamnus nauseosus (Pallas) H. & C. var. uintahensis (L. C. Anderson) Welsh stat. nov.; Machaeranthera canescens (Pursh) Gray var. latifolia (A. Nels.) Welsh stat. nov., and var. aristatus (Eastw.) Turner comb. nov.; Viguiera longifolia (Robins. & Greenm.) Blake var. annua (Jones) Welsh comb. nov.; Dudleya pulverulenta (Nutt.) Britt. & Rose var. arizonica (Rose) Welsh stat. nov.; Cordylanthus kingii Wats. var. densiflorus (Chuang & Heckard) Atwood stat. nov.; Cymopterus acaulis (Pursh) Raf. var. fendleri (Gray) Goodrich comb. nov
Article, 1987