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Lilac (Syringa)

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Home « Wisconsin « Brown « Syringa

Lilac Genus Details

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These deciduous trees and shrubs are members of the olive plant family. Mature plants vary from 6' to 30' in height. Over two dozen lilac species have been introduced successfully to North America. Lilacs flower during May to late June, although most species are in full bloom by the third week in June. Flower colors range from light and dark purple to cream to white.
Lilac (Syringa vulgaris)
Lilac (Syringa vulgaris)
Lilac (Syringa vulgaris)
Lilac (Syringa vulgaris)

Lilac Allergy Info

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This genus is considered allergenically insignificant since pollen is rarely airborne. It has been reported to rarely cause pollinosis in Iowa and Connecticut. The fragrance produced from lilac plants could cause irritation for those with odor sensitivity.

Lilac Pollen Description

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Pollen grains are prolate, suboblate to spheroidal and 3-colpate. The surface is reticulate and the exine is thick.
Pollen grains vary in size from 22-28 micrometers.
Olea europaea, single grain. Herb. MIN
Olea europaea, single grain. Herb. MIN
Olea europaea, multiple grains. Herb. MIN
Olea europaea, multiple grains. 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
Lilac (Syringa) is a genus of the OLEACEAE family.
This genus includes the following allergenic species:

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Lilac 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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