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Western-Wheat Grass (Pascopyrum)

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Home « Wyoming « Washakie « Pascopyrum

Western-Wheat Grass Genus Details

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Western wheat grass is a perennial member of the grass family. The plants have fibrous roots and leaves that have 2 rows of stems consisting of a sheath and blade. Western-wheat grass flowers from mid-spring through the summer and is found in waste places, cultivated fields and meadows.

Western-Wheat Grass Allergy Info

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In general, the grass family is high in pollinosis. In the summer, western wheat grass, where abundant, can lead to allergies.

Western-Wheat Grass Pollen Description

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Grains are spheroidal to ovoidal, sometimes elliptical. The exine is thin and the surface is granular to finely reticuloid. Pocaceae apertures are 1-porate, with the pores usually circular to ovoidal.
Grains are 22-122 micrometers in diameter.
This plant belongs to the grass family.  All pollen grains in this family are similar to the Poaceae (grass) grain pictured here. Herb. MIN
This plant belongs to the grass family. All pollen grains in this family are similar to the Poaceae (grass) grain pictured here. Herb. MIN
This plant belongs to the grass family.  All pollen grains in this family are similar to the Poaceae (grass) grains pictured here. Herb. MIN
This plant belongs to the grass family. All pollen grains in this family are similar to the Poaceae (grass) grains pictured here. Herb. MIN

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
Western-Wheat Grass (Pascopyrum) is a genus of the POACEAE family.
This genus includes the following allergenic species:

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Western-Wheat Grass 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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