Senecio

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style="background:#Template:Taxobox colour;"\|Template:Taxobox name
	Senecio vulgaris, an illustration from 1885.; Senecio vulgaris, an illustration from 1885.
style="background:#Template:Taxobox colour;" \| Scientific classification
Kingdom:	Plantae;
(unranked)	Eudicots;
(unranked)	Asterids;
Order:	Asterales;
Family:	Asteraceae;
Subfamily:	Asteroideae;
Tribe:	Senecioneae;
Genus:	Senecio; L.
Type species
	Senecio vulgaris L.;
Species
	Some 1500, see text
Synonyms
	Dendrosenecio; Jacobaea L.; Culcitium Humb. & Bonpl

File:Golden Ragwort Senecio aureus Plant 3264px.JPG

S. aureus Golden Ragwort

File:Senecio.barbertonicus.7074.jpg

S. barbertonicus Succulent Bush Senecio

File:Senecio haworthii-PICT2616.JPG.jpg

S. haworthii Woolly Senecio

File:Ragwort flowers.jpg

Senecio jacobaea, Common ragwort

File:Senecio kleinia Verode.jpg

Kleinia neriifolia, Verode

File:Senecio spec.jpg

Tephroseris palustris, Swamp Ragwort

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

Senecio (/[invalid input: 'icon']s[invalid input: 'ɨ']ˈniːʃi.oʊ/)^[1] is a genus of the daisy family (Asteraceae) that includes ragworts and groundsels. The flower heads are normally rayed, completely yellow, and the heads are borne in branched clusters. Senecio is one of the largest genera of flowering plants,^[2] and despite the separation of many species into other genera it still contains Template:Circa species of varied form, including leaf, stem and tuber succulents, annuals, perennials, aquatics, climbers, shrubs and small trees. Some species produce natural biocides (especially alkaloids) to deter or even kill animals that would eat them.

Senecio species are used as food plants by the larvae of some Lepidoptera species — see list of Lepidoptera that feed on Senecio. Pyrrolizidine alkaloids have been found in Senecio nemorensis^[3] and in Senecio cannabifolius var. integrilifolius^[4]

The name means "old man".

Selected species

Senecio ampullaceus — Texas ragwort, Texas squaw-weed, Texas groundsel, clasping-leaf groundsel^[5]
Senecio angulatus L.f. — Creeping groundsel
Senecio antisanae
Senecio arborescens
Senecio aureus L. — Golden Ragwort^[6]
- Packera aurea (L.) A. & D. Löve
Senecio barbertonicus Klatt — Succulent Bush Senecio
Senecio battiscombei
- Dendrosenecio battiscombei
Senecio biglovii - Nodding groundsel
Senecio brasiliensis (Spreng.) Less. — flor-das-almas
- Cineraria brasiliensis
Senecio cambrensis — Welsh groundsel, Welsh ragwort
Senecio congestus (R. Br.) DC. — Marsh ragwort, Clustered marsh ragwort, Marsh fleabane
- Cineraria palustris
- Othonna palustris
- Tephroseris palustris
Senecio douglasii - Threadleaf groundsel
Senecio eboracensis Abbott & Lowe — York groundsel
Senecio flaccidus Less. — Douglas senecio, threadleaf groundsel, threadleaf ragwort
Senecio gallicus Chaix — Southern Ragwort
Senecio glabellus Poir. — Butterweed
- Packera glabella (Poir) C. Jeffrey
Senecio glaucus L. — Jaffa groundsel
Senecio haworthii — Woolly senecio
Senecio iscoensis — Hieron.
Senecio jacobaea — Now classed as a separate genus with 29 species.
Senecio keniensis
- Dendrosenecio keniensis
Senecio keniodendron — Giant groundsel
- Dendrosenecio keniodendron
Senecio keniophytum
Senecio kleinia
- Kleinia neriifolia
Senecio lamarckianus
Senecio leucanthemifolius Poir. — Coastal Ragwort
Senecio littoralis
Senecio mikanioides — Cape Ivy, German Ivy
- Delairea odorata
Senecio obovatus Muhl. — Roundleaf Ragwort
- Packera obovata (Muhl. ex Willd.)
Senecio patagonicus
Senecio pulcher
Senecio rowleyanus — String of pearls
Senecio sanmarcosensis
Senecio scandens — German Ivy^[7]
Senecio squalidus — Oxford ragwort
Senecio triangularis - Arrowleaf groundsel
Senecio vaginatus
Senecio vernalis — Eastern groundsel
Senecio viscosus — Sticky ragwort
Senecio vulgaris — Common groundsel, old-man-in-the-spring

Formerly in Senecio

Brachyglottis greyi (as S. greyi)
Florist's Cineraria, Pericallis × hybrida (as S. cruentus)
Rugelia nudicaulis — Rugels ragwort

Synonyms

The following genera contain species that are or have been included within Senecio.^[8]

Probable synonyms:

Antillanthus B. Nord.
Barkleyanthus H. Rob. & Brettell
Brachyglottis J. R. Forst. & G. Forst.^[9]
Canariothamnus B. Nord.
Dauresia B. Nord. & Pelser
Dendrophorbium C. Jeffrey
Dendrosenecio (Hauman ex Hedberg) B. Nord. - Giant groundsels
Dorobaea Cass.
Dresslerothamnus H. Rob.
Elekmania B. Nord.
Herreranthus B. Nord.
Hubertia Bory
Iocenes B. Nord.
Jacobaea Mill.
Lasiocephalus Willd. ex Schltdl.
Leonis B. Nord.
Lundinia B. Nord.
Mesogramma DC.
Monticalia C. Jeffrey
Nelsonianthus H. Rob. & Brettell
Nesampelos B. Nord., nom. inval.
Oldfeltia B. Nord. & Lundin
Packera Á. Löve & D. Löve
Pentacalia Cass.
Pippenalia McVaugh
Pittocaulon H. Rob. & Brettell
Pojarkovia Askerova
Psacaliopsis H. Rob. & Brettell
Pseudogynoxys (Greenm.) Cabrera
Pseudojacobaea (Hook. f.) R. Mathur
Roldana La Llave
Sinosenecio B. Nord.
Synotis (C. B. Clarke) C. Jeffrey & Y. L. Chen
Telanthophora H. Rob. & Brettell
Tephroseris (Rchb.) Rchb.
Zemisia B. Nord.^[10]

References

↑ Sunset Western Garden Book, 1995:606–607
↑ David G. Frodin (2004). "History and concepts of big plant genera". Taxon. 53 (3): 753–776. doi:10.2307/4135449. JSTOR 4135449.
↑ Shi BJ, Xiong AZ, Zheng SS, Chou GX, Wang ZT., "Two new pyrrolizidine alkaloids from Senecio nemorensis." Nat Prod Res. 2010 Dec;24(20):1897-901
↑ Ma H, Yang L, Wang C, Wang Z.."Pyrrolizidine alkaloids of Senecio cannabifolius var. integrilifolius].Zhongguo Zhong Yao Za Zhi. 2011 Jan;36(2):166-8. [Article in Chinese]http://www.ncbi.nlm.nih.gov/pubmed/21506416?dopt=Abstract
↑ Sean Claes (2007-04-16). "Proceed With Caution". Kyle, Texas Daily Photo. Retrieved 2008-04-10.
↑ Connecticut Botanical Society (November 13, 2005). "Golden Ragwort". Connecticut Wildflowers. Retrieved 2008-02-09. Golden Ragwort is one of three species of ragwort in Connecticut, all with similar flowers.
↑ Template:Cite Americana
↑ Pelser, Pieter B. (2007). "An ITS phylogeny of tribe Senecioneae (Asteraceae) and a new delimitation of Senecio L." Taxon. International Association for Plant Taxonomy (IAPT). 56 (4): 1077–14E(–1062). doi:10.2307/25065905. Retrieved 2008-06-29. Unknown parameter |month= ignored (help); Unknown parameter |coauthors= ignored (help)
↑ Norton, D.A. (1986). "Recent changes in the names of New Zealand tree and shrub species" (PDF). New Zealand Journal of Forestry. 31: 39–40.
↑ Germplasm Resources Information Network (GRIN) (2007-05-04). "Genus: Senecio L." Taxonomy for Plants. USDA, ARS, National Genetic Resources Program, National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved 2008-02-27.

External links

Template:Wikispecies Template:Wikiversity-bc Media related to [[commons:Lua error in Module:WikidataIB at line 428: attempt to index field 'wikibase' (a nil value).|Lua error in Module:WikidataIB at line 428: attempt to index field 'wikibase' (a nil value).]] at Wikimedia Commons

Natural Resources Conservation Service (NRCS). "PLANTS Profile, Senecio L." The PLANTS Database. United States Department of Agriculture. Retrieved 2008-03-06.
Germplasm Resources Information Network (GRIN) (2005-10-26). "Genus: Senecio L." Taxonomy for Plants. USDA, ARS, National Genetic Resources Program, National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved 2008-03-06.
Germplasm Resources Information Network (GRIN) (2005-10-26). "GRIN Species Records of Senecio". Taxonomy for Plants. USDA, ARS, National Genetic Resources Program, National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved 2008-03-06.
Integrated Taxonomic Information System Organization (ITIS) (20 December 2007). "Senecio L." Integrated Taxonomic Information System on-line database. Retrieved 2008-02-23.
Botanic Garden and Botanical Museum Berlin-Dahlem. "Details for: Senecio". Euro+Med PlantBase. Freie Universität Berlin. Retrieved 2008-03-06.
Missouri Botanical Garden (1753). "Seneco L." Tropicos Nomenclatural Data Base. Retrieved 2008-03-27. External link in |work= (help)
Royal Botanic Garden Edinburgh. "Flora Europaea Search Results". Retrieved 2008-03-06.
Flora of Israel Online. "Search Results For 'senecio'". Hebrew University of Jerusalem. Retrieved 2008-03-06.
Jerusalem Botanical Gardens. "LIST OF ALL PLANTS NAMES -WITH PHOTO S". Archived from the original on 2007-10-04. Retrieved 2008-03-06.
Flora of North America. "Family List: 215. Senecio Linnaeus". 20: 540, 541, 542, 543, 544, 545, 570, 615. Retrieved 2008-03-06.
Cyrille Chatelain, Laurent Gautier, Raoul Palese. "Senecio L." African Flowering Plants Database. Conservatoire et Jardin botaniques de la Ville de Genève. Retrieved 2008-03-06.
Instituto Darwinion. "Asteraceae" (PDF). Catálogo de las Plantas Vasculares de la República Argentina. II (in Spanish). Universidad de Buenos Aires. p. 255. Retrieved 2008-03-06.^{[dead link]}
Helen Coleman, FloraBase: Flora of Western Australia (1997-06-18). "search term: Senecio". Flora Descriptions. Government of Western Australia. Retrieved 2008-03-06.
Landcare Research. "Senecio L." Flora of New Zealand: Taxa. Landcare Research Allan Herbarium and New Zealand Plant Names Database. Retrieved 2008-04-01.
"Search for:genus:Senecio". Species Information. Calflora — 1700 Shattuck Ave. #198, Berkeley, CA 94709. Retrieved 2008-02-09.
Flora of Chile. "Volume 4 Asteraceae Senecio L". 4. Retrieved 2008-03-06.
Dr. Richard Wunderlin or Dr. Bruce Hansen (2006). "Search Results For Search String: Senecio". Atlas of Florida Vascular Plants. Institute for Systematic Botany. Retrieved 2008-03-06. External link in |work= (help)
"Asteraceae". Primera página de la especie (in Spanish). Malezas de México. Retrieved 2008-03-06.
PlantNET — The Plant Information Network System of Botanic Gardens Trust. "Search terms: Senecio". Botanic Gardens Trust. Retrieved 2008-03-06. External link in |publisher= (help)
University of Wisconsin–Stevens Point. "Senecio L." Robert W. Freckmann Herbarium. Retrieved 2008-03-06.
Royal Horticultural Society. "RHS PLANT FINDER". Retrieved 2008-03-06.
Template:Gutenberg

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[1] Sunset Western Garden Book, 1995:606–607

[Frodin-2] David G. Frodin (2004). "History and concepts of big plant genera". Taxon. 53 (3): 753–776. doi:10.2307/4135449. JSTOR 4135449.

[3] Shi BJ, Xiong AZ, Zheng SS, Chou GX, Wang ZT., "Two new pyrrolizidine alkaloids from Senecio nemorensis." Nat Prod Res. 2010 Dec;24(20):1897-901

[4] Ma H, Yang L, Wang C, Wang Z.."Pyrrolizidine alkaloids of Senecio cannabifolius var. integrilifolius].Zhongguo Zhong Yao Za Zhi. 2011 Jan;36(2):166-8. [Article in Chinese]http://www.ncbi.nlm.nih.gov/pubmed/21506416?dopt=Abstract

[kyledaily-5] Sean Claes (2007-04-16). "Proceed With Caution". Kyle, Texas Daily Photo. Retrieved 2008-04-10.

[ctbs-6] Connecticut Botanical Society (November 13, 2005). "Golden Ragwort". Connecticut Wildflowers. Retrieved 2008-02-09. Golden Ragwort is one of three species of ragwort in Connecticut, all with similar flowers.

[7] Template:Cite Americana

[Senecioneae-8] Pelser, Pieter B. (2007). "An ITS phylogeny of tribe Senecioneae (Asteraceae) and a new delimitation of Senecio L." Taxon. International Association for Plant Taxonomy (IAPT). 56 (4): 1077–14E(–1062). doi:10.2307/25065905. Retrieved 2008-06-29. Unknown parameter |month= ignored (help); Unknown parameter |coauthors= ignored (help)

[RecentChanges-9] Norton, D.A. (1986). "Recent changes in the names of New Zealand tree and shrub species" (PDF). New Zealand Journal of Forestry. 31: 39–40.

[GRIN-10] Germplasm Resources Information Network (GRIN) (2007-05-04). "Genus: Senecio L." Taxonomy for Plants. USDA, ARS, National Genetic Resources Program, National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved 2008-02-27.

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