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False Oat (Trisetum)

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Home « New Hampshire « Grafton « Trisetum

False Oat Genus Details

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The Trisetum genus contains 11 species that are found in mountain meadows of the western, northern and some parts of the eastern U.S. Flowering occurs during May to August depending on the altitude and latitude.

False Oat Allergy Info

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Although the grass family in general is considered significant allergenically, this genus is not typically considered to be problematic. Members of this genus are not known to cause pollinosis.

False Oat 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
False Oat (Trisetum) is a genus of the POACEAE family.
This genus includes the following allergenic species:

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False Oat 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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