Hieracium umbellatum Linnaeus [family COMPOSITAE], Sp. Pl., 2: 804. 1753
Hieracium acranthophorum Omang [family COMPOSITAE]
Hieracium canadense Michaux [family COMPOSITAE]
Hieracium canadense var. divaricatum Lepage [family COMPOSITAE]
Hieracium canadense var. fasciculatum (Pursh) Fernald [family COMPOSITAE]
Hieracium canadense var. hirtirameum Fernald [family COMPOSITAE]
Hieracium canadense var. subintegrum Lepage [family COMPOSITAE]
Hieracium columbianum Rydberg [family COMPOSITAE]
Hieracium devoldii Omang [family COMPOSITAE]
Hieracium ×dutillyanum Lepage [family COMPOSITAE]
Hieracium eugenii Omang [family COMPOSITAE]
Hieracium kalmii Linnaeus [family COMPOSITAE]
Hieracium kalmii var. canadense (Michaux) Reveal [family COMPOSITAE]
Hieracium kalmii var. fasciculatum (Pursh) Lepage [family COMPOSITAE]
Hieracium musartutense Omang [family COMPOSITAE]
Hieracium nepiocratum Omang [family COMPOSITAE]
Hieracium rigorosum (Laestadius ex Almquist) Almquist ex Omang [family COMPOSITAE]
Hieracium scabriusculum Schweinitz [family COMPOSITAE]
Hieracium scabriusculum var. columbianum (Rydberg) Lepage [family COMPOSITAE]
Hieracium scabriusculum var. perhirsutum Lepage [family COMPOSITAE]
Hieracium scabriusculum var. saximontanum Lepage [family COMPOSITAE]
Hieracium scabriusculum var. scabrum (Schweinitz) Lepage [family COMPOSITAE]
Hieracium stiptocaule Omang [family COMPOSITAE]
Hieracium umbellatum subsp. canadense (Michaux) Guppy [family COMPOSITAE]
Hieracium umbellatum var. scabriusculum (Schweinitz) Farwell [family COMPOSITAE]