common ragwort USDA PLANTS Symbol: SEJA
U.S. Nativity: Exotic
Habit: Forbs/Herbs
Senecio jacobaea L.
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Taxonomic Rank: Magnoliopsida: Asterales: Asteraceae
Synonym(s): ragwort, stinking Willie
Native Range: Europe, southern Asia, North Africa ()
Tansy ragwort is a biennial to short-lived perennial herb native to Eurasia. Plants can reach 1-4 ft. (0.3-1.2 m) tall. Cauline (stem) leaves are sessile and deeply lobed. Flowering occurs in summer to early fall, when yellow, daisy-like flowers develop in a flat topped inflorescence at the apex of the stems. Flower heads are 0.8 in. (2 cm) in diameter. Fruit are small and have a persistent ring of white hairs (pappus) attached. Tansy ragwort is native to Europe and was possibly introduced into the United States as a medicinal plant. Plants invade pastures, open forests, swamps, riverbeds and disturbed areas.
Identification, Biology, Control and Management Resources
EDDMapS Distribution:
This map is incomplete and is based only on current site and county level reports made by experts and records obtained from USDA Plants Database. For more information, visit www.eddmaps.org 		 


State List
This map identifies those states that list this species on their invasive species list or law.
U.S. National Parks where reported invasive:
Redwood National Park (California)


Invasive Listing Sources: