Rice Grass (Achnatherum)
Rice Grass Genus Details
Rice grass is native to the U.S. and found extensively throughout the western states. It's a hardy grass that grows well in cool temperatures. This grass reaches 4 to 24" in height. Rice grass has extensive roots and is extremely drought tolerant. It grows best in dry, sandy soil and is tolerant of both acidic and basic soil types. The seeds shed from this grass resemble rice grains.
Rice Grass Allergy Info
Although the grass family in general is considered significant allergenically, this genus is not typically considered to be problematic.
Rice Grass Pollen Description
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
Allergenicity Legend:
Mild Allergen |
Moderate Allergen |
Severe Allergen |
Allergy Test Available
Mild Allergen |
Moderate Allergen |
Severe Allergen |
Allergy Test Available
Rice Grass (Achnatherum) is a genus of the POACEAE family.
This genus includes the following allergenic species:
This genus includes the following allergenic species:
