Bolander's Groundsel: Packera bolanderi var. bolanderi (Synonym: Senecio bolanderi var. bolanderi) -
Bolander's Groundsel, Harford's Groundsel, Harford's Ragwort: Packera bolanderi var. harfordii (Synonyms: Senecio bolanderi var. harfordii, Senecio harfordii) -
Tall Butterweed, Woolly Butterweed, Woolly Groundsel: Packera cana (Synonyms: Senecio canus, Senecio convallium, Senecio hallii, Senecio hallii var. discoidea, Senecio harbourii, Senecio howellii, Senecio purshianus) -
Flett's Groundsel, Flett's Ragwort: Packera flettii -
Elegant Groundsel, Rayless Mountain Butterweed, Rayless Mountain Groundsel: Packera indecora -
Alpine Groundsel, Rayless Alpine Butterweed, Rayless Groundsel: Packera pauciflora -
Falsegold Groundsel: Packera pseudaurea var. pseudaurea -
Alpine Meadow Butterweed, Alpine Meadow Groundsel, Buek's Groundsel, Cleftleaf Groundsel, Pale Groundsel: Packera subnuda var. subnuda (Synonyms: Packera buekii, Senecio cymbalarioides, Senecio cymbalarioides var. cymbalarioides, Senecio subnudus) -
Alpine Meadow Butterweed, Alpine Meadow Groundsel, Cleftleaf Groundsel, Rocky Mountain Butterweed, Rocky Mountain Groundsel: Packera streptanthifolia (Synonyms: Packera cymbalarioides (nom. illeg.), Senecio cymbalarioides, Packera oodes, Packera streptanthifolia var. rubricaulis, Packera streptanthifolia var. streptanthifolia, Senecio acutidens, Senecio adamsii, Senecio aureus var. borealis, Senecio cymbalarioides (nom. illeg.), Senecio cymbalarioides var. borealis, Senecio cymbalarioides var. cymbalarioides, Senecio cymbalarioides var. suksdorfii, Senecio fulgens, Senecio jonesii, Senecio laetiflorus, Senecio leonardii, Senecio longipetiolatus, Senecio oodes, Senecio pammelii, Senecio platylobus, Senecio rubricaulis, Senecio streptanthifolia var. streptanthifolia, Senecio streptanthifolius, Senecio streptanthifolius var. borealis, Senecio streptanthifolius var. kluanei, Senecio streptanthifolius var. laetiflorus, Senecio streptanthifolius var. oodes, Senecio streptanthifolius var. rubricaulis, Senecio streptanthifolius var. wallowensis, Senecio subcuneatus, Senecio suksdorfii, Senecio wardii) -