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Plant Allergy Overview
Allergenicity
Severe
Pollen Season
Spring Summer
Type
Tree
Sub-Type
Deciduous
Allergy Information
Where the tree is present, reactions to olive pollen are common, and typically severe.
Genus Details
The leaves of olive trees are opposite and usually evergreen in the southern parts of the United States. The tree is small (up to 25 feet) and spreading. The flowers appear in the spring and are white, small and fragrant.
Pollen Description
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.
Genus Distribution
The shaded areas on the map indicates where the genus has been observed in the United States.
- Native, observed in a county - Introduced, observed in a county - Rarely observedSpecies in Olive Genus
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