Packera
Packera aurea
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Subfamily: Asteroideae
Tribe: Senecioneae
Genus: Packera
Á. Löve & D. Löve
Type species
Packera aurea

Packera is a genus of about 75 species of plants in the daisy family, Asteraceae.[1] Most species are commonly called ragworts or grounsels. Its members were previously included in the genus Senecio (where they were called aureoid senecios by Asa Gray), but were moved to a different genus based on chromosome numbers, a variety of morphological characters, and molecular phylogenetic evidence.[2]

Packera hesperia
Packera sanguisorbae

Species

As of March 2023, Plants of the World Online accepted the following species.[1] English names are based on the PLANTS database.[3]

  • Packera actinella (Greene) W.A.Weber & Á.Löve – flagstaff ragwort
  • Packera anonyma (Alph.Wood) W.A.Weber & A.Löve − Small's ragwort
  • Packera antennariifolia (Britton) W.A.Weber & A.Löve − shalebarren ragwort
  • Packera aurea (L.) Á.Löve & D.Löve (syn. Senecio aureus) − golden ragwort
  • Packera bellidifolia (Kunth) W.A.Weber & Á.Löve
  • Packera bernardina (Greene) W.A.Weber & A.Löve − San Bernardino ragwort
  • Packera bolanderi (Gray) W.A.Weber & A.Löve − Bolander's ragwort
  • Packera breweri (Burtt Davy) W.A.Weber & A.Löve (syn. Senecio breweri) − Brewer's ragwort
  • Packera cana (Hook.) W.A.Weber & A.Löve − woolly groundsel
  • Packera candidissima (Greene) W.A.Weber & Á.Löve
  • Packera cardamine (Greene) W.A.Weber & A.Löve − bittercress ragwort
  • Packera castoreus (S.L.Welsh) Kartesz − Beaver Mountain ragwort
  • Packera clevelandii (Greene) W.A.Weber & A.Löve (syn. Senecio clevelandii) − Cleveland's ragwort
  • Packera coahuilensis (Greenm.) C.Jeffrey
  • Packera contermina (Greenm.) J.F.Bain
  • Packera crawfordii (Britton) A.M.Mahoney & R.R.Kowal
  • Packera crocata (Rydb.) W.A.Weber & A.Löve − saffron ragwort
  • Packera cymbalaria (Pursh) W.A.Weber & A.Löve − dwarf arctic ragwort
  • Packera cynthioides (Greene) W.A.Weber & A.Löve (syn. Senecio cynthiodes) − White Mountain ragwort
  • Packera debilis (Nutt.) W.A.Weber & A.Löve − weak groundsel
  • Packera dimorphophylla (Greene) W.A.Weber & A.Löve − splitleaf groundsel
  • Packera dubia (Spreng.) Trock & Mabb. (syn. Packera tomentosa) − woolly ragwort
  • Packera eurycephala (Torr. & A.Gray) W.A.Weber & A.Löve − widehead groundsel
  • Packera fendleri (Gray) W.A.Weber & A.Löve − Fendler's ragwort
  • Packera flettii (Wiegand) W.A.Weber & A.Löve − Flett's ragwort
  • Packera franciscana (Greene) W.A.Weber & A.Löve (syn. Senecio franciscanus) − San Francisco Peaks ragwort
  • Packera ganderi (T.M.Barkley & R.M.Beauch.) W.A.Weber & Á.Löve − Gander's ragwort
  • Packera glabella (Poir) C.Jeffrey (syn. Senecio glabellus) − butterweed
  • Packera greenei (Gray) W.A.Weber & A.Löve − flame ragwort
  • Packera hartiana (Heller) W.A.Weber & A.Löve − Hart's ragwort
  • Packera hesperia (Greene) W.A.Weber & A.Löve − western ragwort
  • Packera heterophylla (Fisch.) E.Wiebe
  • Packera hintoniorum (B.L.Turner) C.Jeffrey
  • Packera hyperborealis (Greenm.) Á.Löve & D.Löve − northern groundsel
  • Packera indecora (Greene) Á.Löve & D.Löve − elegant groundsel
  • Packera insulae-regalis R.R.Kowal − Isle Royale ragwort[4]
  • Packera ionophylla (Greene) W.A.Weber & A.Löve − Tehachapi ragwort
  • Packera layneae (Greene) W.A.Weber & A.Löve − Layne's ragwort
  • Packera loratifolia (Greenm.) W.A.Weber & Á.Löve
  • Packera macounii (Greene) W.A.Weber & A.Löve − Siskiyou Mountain ragwort
  • Packera malmstenii (S.F.Blake ex Tidestr.) Kartesz − Podunk ragwort
  • Packera mancosiana Yeatts, B.Schneid. & Al Schneid.
  • Packera × memmingeri (Britton ex Small) Weakley
  • Packera millefolium (Torr. & A.Gray) W.A.Weber & Á.Löve (syn. Senecio millefolium) − piedmont ragwort
  • Packera millelobata (Rydb.) W.A.Weber & A.Löve − Uinta ragwort
  • Packera montereyana (S.Watson) C.Jeffrey
  • Packera moranii (T.M.Barkley) C.Jeffrey
  • Packera multilobata (Torr. & A.Gray) W.A.Weber & Á.Löve − lobeleaf groundsel
  • Packera musiniensis (S.L.Welsh) Trock
  • Packera neomexicana (A.Gray) W.A.Weber & A.Löve − New Mexico groundsel
  • Packera obovata (Willd.) W.A.Weber & A.Löve (syn. Senecio obovatus) − roundleaf ragwort
  • Packera ogotorukensis (Packer) Á.Löve & D.Löve − Ogotoruk Creek ragwort
  • Packera pauciflora (Pursh) Á.Löve & D.Löve − alpine groundsel
  • Packera paupercula (Michx.) Á.Löve & D.Löve − balsam groundsel
  • Packera plattensis (Nutt.) W.A.Weber & A.Löve (syn. Senecio plattensis) − prairie groundsel
  • Packera porteri (Greene) C.Jeffrey − Porter's groundsel
  • Packera pseudaurea (Rydb.) W.A.Weber & A.Löve − falsegold groundsel
  • Packera quebradensis (Greenm.) W.A.Weber & Á.Löve
  • Packera quercetorum (Greene) C.Jeffrey − Oak Creek ragwort
  • Packera rosei (Greenm.) W.A.Weber & Á.Löve
  • Packera sanguisorbae (DC.) C.Jeffrey
  • Packera sanguisorboides (Rydb.) W.A.Weber & A.Löve − burnet ragwort
  • Packera scalaris (Greene) C.Jeffrey
  • Packera schweinitziana (Nutt.) W.A.Weber & A.Löve (syn. Senecio schweinitzianus) − Schweinitz's ragwort
  • Packera serpenticola Boufford, Kartesz, S.H.Shi & R.Zhou − serpentine ragwort
  • Packera spellenbergii (T.M.Barkley) C.Jeffrey − Carrizo Creek ragwort
  • Packera streptanthifolia (Greene) W.A.Weber & A.Löve − Rocky Mountain groundsel
  • Packera subnuda (DC.) Trock & T.M.Barkley – Buek's groundsel
  • Packera tampicana (DC.) C.Jeffrey − Great Plains ragwort
  • Packera texensis O'Kennon & Trock
  • Packera thurberi (A.Gray) B.L.Turner
  • Packera toluccana (DC.) W.A.Weber & Á.Löve
  • Packera umbraculifera (S.Watson) W.A.Weber & Á.Löve
  • Packera werneriifolia (A.Gray) W.A.Weber & A.Löve − hoary groundsel
  • Packera zimapanica (Hemsl.) C.C.Freeman & T.M.Barkley

References

  1. 1 2 "Packera Á.Löve & D.Löve". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2023-03-25.
  2. ↑ Trock, Debra K. (2006). "Packera". In Flora of North America Editorial Committee (ed.). Flora of North America North of Mexico (FNA). Vol. 20. New York and Oxford: Oxford University Press – via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
  3. ↑ "Classification for Kingdom Plantae Down to Genus Packera A. Löve & D. Löve". The PLANTS Database. Natural Resources Conservation Service (NRCS), United States Department of Agriculture (USDA). Retrieved 2008-04-01.
  4. ↑ "Packera insulae-regalis - Michigan Flora". michiganflora.net. Retrieved 2021-02-10.


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