Barley (Hordeum)
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Barley Genus Details
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Cultivated barley (Hordeum vulgare) is an annual that sheds little pollen since it's self-pollinated. About 7 wild species of barley grow in the U.S. Two species, foxtail barley or squirrel-tail grass (H. jubatum), and mouse barley (H. murinum) are common weeds in the western U.S. Foxtail barley is a perennial that grows in tufts or mats with flat leaves. A spikelike flower or seed head resembles a fox or squirrel tail. Foxtail barley grows throughout the U.S. except in the southern states.
Barley Allergy Info
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The grass family in general is considered significant allergenically.
Barley 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.
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This plant belongs to the grass family. All pollen grains in this family are similar to the Poaceae (grass) grain pictured here. Herb. MIN
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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 |
Moderate Allergen |
Severe Allergen |
Allergy Test Available
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Barley (Hordeum) is a genus of the POACEAE family.
This genus includes the following allergenic species:
This genus includes the following allergenic species: