Senecio viscosus

Senecio viscosus
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Senecio
Species:
S. viscosus
Binomial name
Senecio viscosus
Synonyms[1]
Synonymy
  • Jacobaea viscosa Gilib.
  • Obaejaca viscosa Cass.
  • Senecio vulgaris subsp. viscosus (L.) Bonnier & Layens
  • Senecio calvertii Boiss.
  • Senecio glutinosus Schur
  • Senecio tymphresteus Boiss. & Heldr.
  • Seneciunculus viscosus Opiz

Senecio viscosus is a herbaceous annual plant of the genus Senecio. It is known as the sticky ragwort,[2] sticky groundsel,[3] or stinking groundsel.[4]

Description

An annual, growing to 70 cm high and covered with glandular hairs. Very similar to Senecio sylvaticus which does not have glandular hairs. The outer bracts show a brown tip. The ray-florets are ligulate, yellow and at first spreading then rolled back. The leaves are alternate and deeply lobed. Senecio vulgaris (Groundsel) does not have ray florets.[5]

Distribution

Locally common in Britain and Ireland on waste ground.[5][6][7] According to the USDA Plants database, the species has also been introduced in the United States (Pennsylvania, New York, Vermont, New Hampshire, Maine, Massachusetts, Connecticut, Rhode Island, Michigan, Wisconsin, Illinois, Idaho, Alaska) and Canada (British Columbia, Alberta, Saskatchewan, Manitoba, Ontario, Quebec, New Brunswick, Nova Scotia, Prince Edward Island, and Newfoundland and Labrador).[2]

Taxonomy

Senecio viscosus was first named and described by Carl von Linnaeus in 1753 in the book Species Plantarum.[8]

References

  1. ^ "Senecio viscosus L. | Plants of the World Online | Kew Science". Plants of the World Online. Retrieved 4 December 2024.
  2. ^ a b "USDA Plants Database Plant Profile General". Natural Resources Conservation Service. Retrieved 4 December 2024.
  3. ^ "Senecio viscosus (Sticky Ragwort): Minnesota Wildflowers". Minnesota Wildflowers. Retrieved 4 December 2024.
  4. ^ Baynes, T. S.; Smith, W. R., eds. (1880). "Groundsel" . Encyclopædia Britannica. Vol. 11 (9th ed.). New York: Charles Scribner's Sons. p. 221.
  5. ^ a b Parnell, J. and Curtis, T. 2012. Webb's An Irish Flora. Cork University Press. ISBN 978-185918-478-3
  6. ^ Martin, W.K. 1965. The Concise British Flora in Colour. Ebury Press
  7. ^ Hackney,P. 1992. Stewart & Corry's Flora of the North-east of Ireland. Institute of Irish Studies, The Queen's University of Belfast. ISBN 0-85389-446-9
  8. ^ "Tropicos | Name - Senecio viscosus". Tropicos. Retrieved 4 December 2024.


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