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Hawthorn (Crataegus)

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Hawthorn Genus Details

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Hawthorn species are native to North America. All hawthorns have alternate, toothed, incised or lobed leaves. They bear clusters of showy white, pink or red flowers from May to June. Apple-like fruits are 0.3-0.8 inches in diameter, usually red or orange, late in summer. The trunks and branches are smooth and greenish-brown. Height ranges from 20-40 feet. The fruits of this species make excellent jelly.
Dotted hawthorn (Crataegus punctata)
Dotted hawthorn (Crataegus punctata)
Fleshy hawthorn (Crateagus succulenta)
Fleshy hawthorn (Crateagus succulenta)

Hawthorn Allergy Info

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Hawthorns have low allergenic activity.

Hawthorn Pollen Description

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No pollen description is currently available.

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
Hawthorn (Crataegus) is a genus of the ROSACEAE family.
This genus includes the following allergenic species:

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Hawthorn 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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