Senecio

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"Ragwort" redirects here. For other uses, see Ragwort (disambiguation).

Senecio
Senecio vulgaris, an illustration from 1885.
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Eudicots
(unranked):
Asterids
Order:
Asterales
Family:
Asteraceae
Subfamily:
Asteroideae
Tribe:
Senecioneae
Genus:
Senecio

Type species
Senecio vulgaris L.
Species

Some 1500, see text

Synonyms

Dendrosenecio
Jacobaea L.
Culcitium Humb. & Bonpl

S. aureus Golden Ragwort
S. barbertonicus Succulent Bush Senecio
S. haworthii Woolly Senecio
Senecio jacobaea, Common ragwort
Kleinia neriifolia, Verode
Tephroseris palustris, Swamp Ragwort

Senecio (Template:Pron-en)[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, and despite the separation of many species into other genera it still contains over 1000 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.

Selected species

Main article: List of Senecio species

Formerly in Senecio

Synonyms

The following genera contain species that are or have been included within Senecio.[6]

Probable synonyms:

References

  1. ^ Sunset Western Garden Book, 1995:606–607
  2. ^ Sean Claes (2007-04-16). "Proceed With Caution" (HTML). Kyle, Texas Daily Photo. Retrieved 2008-04-10.
  3. ^ Connecticut Botanical Society (November 13, 2005). "Golden Ragwort" (HTML). Connecticut Wildflowers. Retrieved 2008-02-09. Golden Ragwort is one of three species of ragwort in Connecticut, all with similar flowers.
  4. ^ M. Grieve (1931). "Ragwort" (HTML). A Modern Herbal. © Copyright Protected 1995–2008 Botanical.com.
  5. ^ "Tansy Ragwort" (HTML). Written Findings of the State Noxious Weed Control Board. Washington State Department of Agriculture. Retrieved 2008-02-09.
  6. ^ Pelser, Pieter B. (2007). "An ITS phylogeny of tribe Senecioneae (Asteraceae) and a new delimitation of Senecio L." Taxon. 56 (4). International Association for Plant Taxonomy (IAPT): 1077–14E(-1062). Retrieved 2008-06-29. {{cite journal}}: Unknown parameter |coauthors= ignored (|author= suggested) (help); Unknown parameter |month= ignored (help)
  7. ^ 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. {{cite journal}}: Cite has empty unknown parameters: |coauthors= and |month= (help)
  8. ^ Germplasm Resources Information Network (GRIN) (2007-05-04). "Genus: Senecio L." (HTML). Taxonomy for Plants. USDA, ARS, National Genetic Resources Program, National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved 2008-02-27.

External links

Wikispecies has information related to Senecio.
Wikiversity has bloom time data for Senecio vulgaris on the Bloom Clock

Media related to Senecio at Wikimedia Commons

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