Holly (Ilex)
Holly Genus Details
Holly typically has leathery and shiny evergreen leaves, 1-2 inches long, with spiny tips. American holly leaves are also stiff, with a deep dark green color on top, and yellow-green on bottom. The fruits are bright red berries. Holly trees are usually found in the south, growing to heights of 15 to 40 feet. They can also be found in the form of shrubs, used as ornamentals throughout the country. Holly grows best in rich soils of bottomlands, but can also grow in dry, sandy soil. Many trees never develop fruit. Branches with berries from holly are commonly used as decorations during winter holidays.
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Holly (Ilex genus)
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Holly (Ilex genus)
Holly Allergy Info
Insect-pollinated, holly isn't a strong source of pollinosis, but could cause problems for those sensitive when grown in close proximity to living spaces.
Holly Pollen Description
Pollen grains are prolate to prolate-spheroidal; the amb rounded or triangular and 3-colporoidate. The colpi are long with slightly thickened margins and tapering ends. The sexine and exine are generally thick.
Grains are usually 28-34 x 22-30 micrometers in size.
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Ilex cassine, single grain. Herb. MIN
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Ilex cassine, multiple grains. Herb. MIN
Species in This Genus
Allergenicity Legend:
Mild Allergen |
Moderate Allergen |
Severe Allergen |
Allergy Test Available
Mild Allergen |
Moderate Allergen |
Severe Allergen |
Allergy Test Available
Holly (Ilex) is a genus of the AQUIFOLIACEAE family.
This genus includes the following allergenic species:
This genus includes the following allergenic species:
