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English-Ivy (Hedera)

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Home « Hedera

English-Ivy Genus Details

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English ivy is native to Europe but is planted throughout the U.S. and has become a popular house plant. English ivy is a clinging vine with 3-5 lobed leaves. The mature plant produces berries which are poisonous. Throughout the ages, English ivy has been regarded as the emblem of fidelity.
English-Ivy (Hedera helix)
English-Ivy (Hedera helix)
Ivy (Hedera helix)
Ivy (Hedera helix)

English-Ivy Allergy Info

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English ivy is insect-pollinated, and is very low in pollinosis.

English-Ivy Pollen Description

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Pollen grains of Hedera are prolate to prolate spheroidal; the amb triangular with convex sides or circular and 3-4 colporate. The colpi are long and narrow with slightly thickened margins and ends tapering or blunt. When present, the ora is faint and lalongate. The sexine is thick and reticluate and the intine is thickened below the apertures.

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
English-Ivy (Hedera) is a genus of the ARALIACEAE family.
This genus includes the following allergenic species:

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English-Ivy 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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