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Monsterwort (Parthenice)

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Home « Parthenice

Monsterwort Genus Details

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Monsterwort is a member of the sunflower family and flowers during July to December in the southwestern U.S. Monsterwort is found primarily in the arid southwest.

Monsterwort Allergy Info

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The pollen of monsterwort is considered allergenic and is a source of pollinosis when it becomes airborne.

Monsterwort Pollen Description

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Pollen grains of Parthenice are oblate-spheroidal to prolate-spheroidal; the amb triangular and 3-4 colporate. The sexine is thick, tectate, and is covered with short spines.
Baccharis halimifolia, single grain. Herb. MIN.  Parthenice has pollen grains of the Baccharis-type.
Baccharis halimifolia, single grain. Herb. MIN. Parthenice has pollen grains of the Baccharis-type.
Baccharis halimifolia, multiple grains.  Herb. MIN. Parthenice has pollen grains of the Baccharis-type.
Baccharis halimifolia, multiple grains. Herb. MIN. Parthenice has pollen grains of the Baccharis-type.

Species in This Genus

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Allergenicity Legend:
Mild Allergen Mild Allergen  |  Moderate Allergen Moderate Allergen  |  Severe Allergen Severe Allergen  |  Allergy Test Allergy Test Available
Monsterwort (Parthenice) is a genus of the ASTERACEAE family.
This genus includes the following allergenic species:

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Monsterwort Genus Location

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The shaded areas on the map indicates where the genus 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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