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 | |
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]
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Species
[edit]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
[edit]- ^ 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.
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