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Wild Rice (Zizania)

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Home « Maryland « Anne arundel « Zizania

Wild Rice Genus Details

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Also called Indian rice or water oats, this tall, aquatic, primarily annual plant grows in marshes, lakes, and streams in Canada and the eastern U.S. These plants have long flat leaves and long flowering structures called panicles, with female flowers on the upper branches and male flowers below. Flowering occurs from June to the end of summer, producing large amounts of pollen.

Wild Rice 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. Reported to have low pollen allergenicity and probable low exposure frequency. However, it has been reported in Minnesota to be significant.

Wild Rice 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
Wild Rice (Zizania) is a genus of the POACEAE family.
This genus includes the following allergenic species:

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Wild Rice 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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