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Giant-Reed (Arundo)

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Home « Louisiana « Tensas « Arundo

Giant-Reed Genus Details

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Giant reed is a fast-spreading, stiffly upright tall grass. The leaves are 2 inches long and wide with a spire-like flower plume 2 feet tall. Giant reed is native to South Europe but was brought to the U.S. as an ornamental and has since naturalized. Now it is found along the East Coast and in marshy areas. Giant reed is an abundant pollen producer with July-October the heaviest shedding time.

Giant-Reed Allergy Info

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The grass family in general is considered significant allergenically.

Giant-Reed Pollen Description

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The exine is thin and the intine is usually thicker, particularly below the apertures. The surface is granular and the grain has only one circular pore.
Pollen grains of Arundo are spheroidal to ovoidal and 32-45 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
Giant-Reed (Arundo) is a genus of the POACEAE family.
This genus includes the following allergenic species:

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Giant-Reed 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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