Weber & A. Löve − Tehachapi ragwort Packera layneae (Greene) W.A. Weber & A. Löve − Layne's ragwort Packera macounii (Greene) W.A. Weber & A. Löve − Siskiyou Mountain ragwort Packera malmstenii (Blake ex Tidestrom) Kartesz, comb. nov. ined. − Podunk ragwort Packera millefolia (Torr. & Gray) T.M. Barkl., comb. nov. ined. − piedmont ragwort Packera millefolium (Torr. & A. Gray) W.A. Weber & A. Löve Senecio millefolium Torr. & Gray Packera millelobata (Rydb.) W.A. Weber & A. Löve − Uinta ragwort Packera moresbiensis (Calder & Roy L. Taylor) J.F. Bain – Cleftleaf ragwort Packera multilobata (Torr. & Gray ex Gray) W.A. Weber & A. Löve − lobeleaf groundsel Senecio multilobatus Torr. & Gray ex Gray Packera musiniensis (S. L. Welsh) Trock Packera neomexicana (Gray) W.A. Weber & A. Löve − New Mexico groundsel Packera obovata (Muhl. ex Willd.) W.A. Weber & A. Löve − roundleaf ragwort Senecio obovatus Muhl. ex Willd. Packera ogotorukensis (Packer) A.& D. Löve − Ogotoruk Creek ragwort Packera pauciflora (Pursh) A.& D. Löve − alpine groundsel Packera paupercula (Michx.) A.& D. Löve − balsam groundsel Packera plattensis (Nutt.) W.A. Weber & A. Löve − prairie groundsel Senecio plattensis Nutt. Packera porteri (Greene) C. Jeffrey − Porter's groundsel Packera pseudaurea (Rydb.) W.A. Weber & A. Löve − falsegold groundsel Packera quaerens (Greene) W.A. Weber & A. Löve − Mogollon Mountain ragwort Senecio quaerens Greene Packera quercetorum (Greene) C. Jeffrey − Oak Creek ragwort Packera sanguisorboides (Rydb.) W.A. Weber & A. Löve − burnet ragwort Packera schweinitziana (Nutt.) W.A. Weber & A. Löve − Schweinitz's ragwort Senecio schweinitzianus Nutt. Packera serpenticola Boufford, Kartesz, S.H. Shi & Renchao Zhou − serpentine ragwort Packera spellenbergii (T.M. Barkl.) C. Jeffrey − Carrizo Creek ragwort Packera streptanthifolia (Greene) W.A. Weber & A. Löve − Rocky Mountain groundsel Packera subnuda (DC.) D.K. Trock & T.M. Barkley – Buek's groundsel Packera tampicana (DC.) C. Jeffrey − Great Plains ragwort Packera tomentosa (Michx.) C. Jeffrey − woolly ragwort Packera tridenticulata (Rydb.) W.A. Weber & A. Löve − threetooth ragwort Packera werneriifolia (Gray) W.A. Weber & A. Löve − hoary groundsel Sources: NRCS References Asteraceae genera