SimplePlant

Asteraceae

Threadleaf ragwort

Senecio flaccidus Less.

Family
Asteraceae
Genus
Senecio

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Threadleaf ragwort: Photo of Senecio flaccidus in Red Rock Canyon , Nevada
Photo: User:Stan Shebs, CC BY-SA 3.0, from Wikimedia Commons

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Common names

By language (2)
English
Threadleaf ragwort
nv
Hosh bee yildéhé

Synonyms

  • Senecio douglasii subsp. longilobus (Benth.) W.A.Weber
  • Senecio douglasii var. jamesii (Torr. & A.Gray) Ediger ex Correll & M.C.Johnst.
  • Senecio douglasii var. longilobus (Benth.) L.D.Benson
  • Senecio filifolius Nutt.
  • Senecio filifolius var. filifolius
  • Senecio flaccidus var. flaccidus
  • Senecio longilobus Benth.

Characteristics

Growth habit
Forb/herb, Subshrub
Lifespan
Perennial
In the US and Canada
Lower 48 states: native

Photos

More in Senecio

Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.