Common Teasel

(Dipsacus fullonum subsp. sylvestris)

General description:

Herbaceous, monocarpic perennial. Grows as a basal rosette for at least one year. Forms a prickly, angled flowering stalk, 2-6’ tall, typically in second or third year.

Ecological threat:

  • Invades open areas, prairies, savannas, and sedge meadows, as well as roadsides and disturbed areas.
  • Rapid range expansion of cut-leaved teasel has been observed in several Midwestern states.
Garlic Mustard
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Garlic Mustard

(Alliaria petiolata)
Dames Rocket
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Dames Rocket

(Hesperis matronalis)