Agoseris graminifolia Greene accepted as Agoseris aurantiaca (Hook.) Greene (original description)
Artemisia microcephala Wooton accepted as Artemisia ludoviciana Nutt. (original description)
Aster continuus Small accepted as Symphyotrichum patens var. patentissimum (Lindl. ex Lindl.) G.L.Nesom (original description)
Aster hesperius var. wootonii Greene accepted as Symphyotrichum lanceolatum (Willd.) G.L.Nesom (original description)
Aster woodhousei Wooton accepted as Brachyactis woodhousei (Wooton) Wooton & Standl. (original description)
Bidens nashii Small accepted as Bidens laevis (L.) Britton, Sterns & Poggenb. (original description)
Carduus perennans Greene accepted as Cirsium wheeleri (A.Gray) Petr. (original description)
Chrysopsis fulcrata Greene accepted as Heterotheca fulcrata (Greene) Shinners (original description)
Chrysothamnus glaucus A.Nelson accepted as Chrysothamnus viscidiflorus (Hook.) Nutt. (original description)
Coreopsis lewtonii Small (original description)
Doellingeria sericocarpoides Small (original description)
Erigeron arenarius Greene accepted as Erigeron bellidiastrum var. arenarius (Greene) G.L.Nesom (original description)
Erigeron formosissimus Greene (original description)
Erigeron grayi A.Heller accepted as Erigeron pulcherrimus A.Heller (original description)
Erigeron nuttallii A.Heller accepted as Erigeron foliosus var. foliosus Nutt. (original description)
Erigeron pulcherrimus A.Heller (original description)
Erigeron tetrapleurus (A.Gray) A.Heller accepted as Erigeron utahensis var. utahensis A.Gray (original description)
Eriocarpum serratum Greene accepted as Xanthisma blephariphyllum (A.Gray) D.R.Morgan & R.L.Hartm. (original description)
Eriocarpum wootonii Greene accepted as Xanthisma spinulosum (Pursh) D.R.Morgan & R.L.Hartm. (original description)
Eriophyllum pedunculatum A.Heller accepted as Eriophyllum lanatum (Pursh) J.Forbes (original description)
Grindelia scabra Greene (original description)
Marshallia graminifolia (Walter) Small (original description)
Oonopsis wardii var. condensata A.Nelson accepted as Oonopsis wardii (A.Gray) Greene (original description)
Senecio memmingeri Britton ex Small accepted as Packera millefolium (Torr. & A.Gray) W.A.Weber & Á.Löve (original description)
Silphium venosum Small accepted as Silphium compositum Michx. (original description)