Catagory 2

tansy ragwort

Senecio jacobaea

ASTERACEAE (Sunflower family)

taprooted biennial or short-lived perennial, poisonous if ingested

IDENTIFYING CHARACTERISTICS

  • Tiny daisy-like yellow flowers around
    a yellow center
  • Rosettes have 10 to 20 leaves with
    web-like hairs
  • Crushed leaves have a foul odor
  • Stem and leafstalks can be purple

This is a general table provided as a quick reference only. Treatments behave differently in different ecosystems.
What works in some areas of montana may not work in others. These treatments may also affect native and desirable plants.

tansy ragwort

cut mow
hand pull (wear gloves)
herbicide
biological control
reseeding
domestic animal
cultivate

effective

moderately effective-
effective in combination with other treatments
ineffective

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