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Dropseed (Sporobolus)

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Home « Louisiana « Tensas « Sporobolus

Dropseed Genus Details

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Dropseeds are annual or perennial grasses that range from 6 inches to over 6 feet tall. These grasses grow in waste places in diverse climates and soils of North America. One species is a forage grass that is commonly found in the southwestern states. Flowering occurs during the spring to autumn months depending on the latitude and climate. Continuous flowering occurs in subtropical Florida.
Dropseed (Sporobolus heterolepis)
Dropseed (Sporobolus heterolepis)

Dropseed 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. It may be of secondary allergenic importance where it commonly grows, as in Cuba.

Dropseed 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.
This plant belongs to the grass family. All pollen grains in this family are similar to the Poaceae (grass) grain pictured here.
This plant belongs to the grass family.  All pollen grains in this family are similar to the Poaceae (grass) grains pictured here.
This plant belongs to the grass family. All pollen grains in this family are similar to the Poaceae (grass) grains pictured here.

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
Dropseed (Sporobolus) is a genus of the POACEAE family.
This genus includes the following allergenic species:

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Dropseed 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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