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Buckeye (Aesculus)

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Home « Illinois « Calhoun « Aesculus

Buckeye Genus Details

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Buckeye leaves are opposite and palmately compound (with parts diverging from a common base, as the fingers of a hand) with 5 to 7 large leaflets. Twigs are stout and marked by opposite, heart shaped leaf scars. Flowers are yellow or white depending on the species. Fruits are large, thick, spiny leather pods with 1-3 brown seeds, which are poisonous. Trees will grow 30 to 60 feet tall depending on species. They are planted all across the country.
Buckeye (Aesculus) tree
Buckeye (Aesculus) tree
Buckeye (Aesculus) tree
Buckeye (Aesculus) tree

Buckeye Allergy Info

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Buckeyes are moderately high pollen producers, and the pollen is wind-borne. It has been implicated in pollinosis problems.

Buckeye Pollen Description

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Buckeye pollen grains are prolate; the amb triangular with convex sides and 3-colporate. The colpi are long with thickened margins and occasionally syncolpate at one pole. The ora is circular with thickened margins and the opercula densely granular. The sexine is striato-reticulate.
The grains are 26-28 x 21 micrometers.

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
Buckeye (Aesculus) is a genus of the HIPPOCASTANACEAE family.
This genus includes the following allergenic species:

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Buckeye 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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