Packera
Packera is a genus of about 64 species of plants in the composite family, Asteraceae. Its members were previously included in the genus Senecio, but were divided out based on chromosome numbers, a variety of morphological characters, and molecular phylogeny.
''Species
- Packera anonyma W.A. Weber & A. Löve − Small's ragwort
- Packera antennariifolia W.A. Weber & A. Löve − shalebarren ragwort
- Packera aurea A.& D. Löve − golden ragwort
- * Senecio aureus L.
- Packera bernardina W.A. Weber & A. Löve − San Bernardino ragwort
- Packera bolanderi W.A. Weber & A. Löve − Bolander's ragwort
- Packera breweri W.A. Weber & A. Löve − Brewer's ragwort
- * Senecio breweri Burtt-Davy
- Packera cana W.A. Weber & A. Löve − woolly groundsel
- Packera cardamine W.A. Weber & A. Löve − bittercress ragwort
- Packera castoreus Kartesz, comb. nov. ined. − Beaver Mountain ragwort
- Packera clevelandii W.A. Weber & A. Löve − Cleveland's ragwort
- * Senecio clevelandii Greene
- Packera contermina T.M. Barkl., comb. nov. ined.
- Packera crocata W.A. Weber & A. Löve − saffron ragwort
- Packera cymbalaria W.A. Weber & A. Löve − dwarf arctic ragwort
- Packera cymbalarioides W.A. Weber & A. Löve − cleftleaf groundsel
- Packera cynthioides W.A. Weber & A. Löve − White Mountain ragwort
- * Senecio cynthiodes Greene
- Packera debilis W.A. Weber & A. Löve − weak groundsel
- Packera dimorphophylla W.A. Weber & A. Löve − splitleaf groundsel
- Packera eurycephala W.A. Weber & A. Löve − widehead groundsel
- Packera fendleri W.A. Weber & A. Löve − Fendler's ragwort
- Packera flettii W.A. Weber & A. Löve − Flett's ragwort
- Packera franciscana W.A. Weber & A. Löve − San Francisco Peaks ragwort
- * Senecio franciscanus Greene − San Francisco Peaks groundsel
- Packera ganderi W.A. Weber & A. Löve − Gander's ragwort
- Packera glabella C. Jeffrey − butterweed
- * Senecio glabellus Poir.
- Packera greenei W.A. Weber & A. Löve − flame ragwort
- Packera hartiana W.A. Weber & A. Löve − Hart's ragwort
- Packera hesperia W.A. Weber & A. Löve − western ragwort
- Packera hyperborealis A.& D. Löve − northern groundsel
- Packera indecora A.& D. Löve − elegant groundsel
- Packera ionophylla W.A. Weber & A. Löve − Tehachapi ragwort
- Packera layneae W.A. Weber & A. Löve − Layne's ragwort
- Packera macounii W.A. Weber & A. Löve − Siskiyou Mountain ragwort
- Packera malmstenii Kartesz, comb. nov. ined − Podunk ragwort
- Packera millefolia T.M. Barkl., comb. nov. ined. − piedmont ragwort
- * Packera millefolium W.A. Weber & A. Löve
- * Senecio millefolium Torr. & Gray
- Packera millelobata W.A. Weber & A. Löve − Uinta ragwort
- Packera moresbiensis J.F. Bain – Cleftleaf ragwort
- Packera multilobata W.A. Weber & A. Löve − lobeleaf groundsel
- * Senecio multilobatus Torr. & Gray ex Gray
- Packera musiniensis Trock
- Packera neomexicana W.A. Weber & A. Löve − New Mexico groundsel
- Packera obovata W.A. Weber & A. Löve − roundleaf ragwort
- * Senecio obovatus Muhl. ex Willd.
- Packera ogotorukensis A.& D. Löve − Ogotoruk Creek ragwort
- Packera pauciflora A.& D. Löve − alpine groundsel
- Packera paupercula A.& D. Löve − balsam groundsel
- Packera plattensis W.A. Weber & A. Löve − prairie groundsel
- * Senecio plattensis Nutt.
- Packera porteri C. Jeffrey − Porter's groundsel
- Packera pseudaurea W.A. Weber & A. Löve − falsegold groundsel
- Packera quaerens W.A. Weber & A. Löve − Mogollon Mountain ragwort
- * Senecio quaerens Greene
- Packera quercetorum C. Jeffrey − Oak Creek ragwort
- Packera sanguisorboides W.A. Weber & A. Löve − burnet ragwort
- Packera schweinitziana W.A. Weber & A. Löve − Schweinitz's ragwort
- * Senecio schweinitzianus Nutt.
- Packera serpenticola Boufford, Kartesz, S.H. Shi & Renchao Zhou − serpentine ragwort
- Packera spellenbergii C. Jeffrey − Carrizo Creek ragwort
- Packera streptanthifolia W.A. Weber & A. Löve − Rocky Mountain groundsel
- Packera subnuda D.K. Trock & T.M. Barkley – Buek's groundsel
- Packera tampicana C. Jeffrey − Great Plains ragwort
- Packera tomentosa C. Jeffrey − woolly ragwort
- Packera tridenticulata W.A. Weber & A. Löve − threetooth ragwort
- Packera werneriifolia W.A. Weber & A. Löve − hoary groundsel
Sources: NRCS
