Packera

Packera
	Packera aurea
Scientific 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; (L.) Á. Löve & D. Löve

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]

Species

As of March 2023^[update], 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

^ ^a ^b "Packera Á.Löve & D.Löve". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2023-03-25.
^ 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.
^ "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.
^ "Packera insulae-regalis - Michigan Flora". michiganflora.net. Retrieved 2021-02-10.

This Senecioneae-related article is a stub. You can help Wikipedia by expanding it.

[POWO_298624-2-1] "Packera Á.Löve & D.Löve". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2023-03-25.

[fna-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.

[NRCS-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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