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Biennial Wormwood (Artemisia biennis)

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Family: ASTERACEAE
Genus: Artemisia
Species: Biennial Wormwood (Artemisia biennis)

Biennial Wormwood Species Description

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These plants are from foreign areas (those that occur outside of North America north of Mexico) that have been released intentionally or unintentionally. Plants that have been disseminated or escaped as a result of human activity, and become established somewhere within the United States, Canada or Greenland.

Allergenicity: Biennial Wormwood (Artemisia biennis) is a severe allergen.

Pollination: Occurs in following seasons depending on latitude and elevation: Spring to Fall.

Angiosperm - Flowering Dicot: Plants in this group have two embryonic leaves (dicotyledons). Examples of dicotyledons are beans, buttercups, oaks, sunflowers, etc.

Forb: A broad-leaved herb other than a grass, especially one growing in a field, prairie, or meadow.

Weed: Any plant growing in cultivated ground to the injury of the crop or desired vegetation, or to the disfigurement of the place; an unsightly, useless, or injurious plant.

Annual: Plants in which the entire life cycle is completed within one growing season.

Biennial: Occuring every two years.

State Noxious Weed: unpleasant and possibly also harmful.

Wetland Plant: Plants growing in aquatic or wetland habitats. These include all known floating, submerged, and emergent taxa, plus those that are found in permanently or seasonally wet habitats.

Herbaceous Stem: Not woody, lacking lignified tissues.

Biennial Wormwood Species Usage

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Biennial Wormwood Species Location

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The shaded areas on the map indicates where the species has been observed in the United States. Click the map to see a full scale version of these allergy areas.
  - Native, observed in a county
  - Introduced, observed in a county
  - Rarely observed
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