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Bunchberry, Dogwood (Cornus)

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Home « Tennessee « Lawrence « Cornus

Bunchberry, Dogwood Genus Details

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Cornus are shrubs or small trees that form thickets by proliferation from the roots. The branches are green-red and turn brown on the older wood. The leaves are opposite and the flowers are a cream to light green color. The fruit is white and one-seeded. The plants grow along river banks and lake shores to dry low open areas.
Dogwood (Cornus genus).
Dogwood (Cornus genus).
Redosier (Cornus sericea).
Redosier (Cornus sericea).

Bunchberry, Dogwood Allergy Info

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Although cornus pollen has been found in air samples and patients have tested strongly positive to cornus in skin tests, the pollen is not commonly airborne. Therefore, contact with the pollen is limited.

Bunchberry, Dogwood Pollen Description

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Grains of Cornus are subprolate to prolate; the amb triangular with straight sides and the three long apertures nearly fusing and 3-colporate. The colpi are long and narrow with smooth and thickened margins. The sexine is tectate, densely covered irregularly with spinules, appearing granular.
The pollen grains are 24-62 x 20-50 micrometers.
Cornus foemina, single grain. Herb. MIN
Cornus foemina, single grain. 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
Bunchberry, Dogwood (Cornus) is a genus of the CORNACEAE family.
This genus includes the following allergenic species:

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Bunchberry, Dogwood 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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