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Brome (Bromus)

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Brome Genus Details

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Brome grass, a native U.S. grass genus, is both annual and perennial, depending on where it is growing. Species can grow from 4 inches to 30 inches and are characterized by their densely hariy sheaths and blades. Its infloresence is drooping and one sided. It is widely planted for cover, pasture and hay and is an important forage grass in the western states. Species within this genus vary as to how much pollen they shed.
Smooth Brome Grass (Bromus inermis).
Smooth Brome Grass (Bromus inermis).
Smooth Brome Grass (Bromus inermis).
Smooth Brome Grass (Bromus inermis).

Brome Allergy Info

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This is one of the more significant grass types in terms of allergy.

Brome 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. Poaceae apertures are 1-porate, with the pores usually circular to ovoidal.
Grains are 22-122 micrometers in diameter.
Bromus inermis, sinlge grain. Herb. MIN
Bromus inermis, sinlge grain. Herb. MIN
Bromus inermis, multiple grains. Herb. MIN
Bromus inermis, multiple grains. 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
Brome (Bromus) is a genus of the POACEAE family.
This genus includes the following allergenic species:

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Brome 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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