Allergenic Pollen

How to avoid pollen

• Keep windows in cars and buildings shut
• Wear glasses or sunglasses
• Avoid open grassy places, particularly in the evening and at night
• Use a car with a pollen filter
• Check for pollen counts in the media
• During the peak season take a holiday by the sea or abroad

Some pollen and mold has no known allergic affect on humans. This is a list of pollens and mold in the area known to cause allergies .

Tree pollens

Ulmaceae
    American Elm (Ulmus americana)*
    Siberian Elm (Ulmus pumila)*
    Slippery Elm (Ulmus rubra)*
    Rock Elm (Ulmus thomasii)*
Cupressaceae
     Eastern Red-Cedar (Juniperus virginiana)
Betulaceae
     European Alder (Alnus glutinosa)*
     Speckled Alder (Alnus incana)*
     Sitka Alder (Alnus viridis)*
     Paper Birch (Betula papyrifera)*
     Yellow Birch (Betula alleghaniensis)*
     Swamp Birch (Betula nana)*
     River Birch (Betula nigra)*
     Bog Birch (Betula pumila)*
     American Hornbeam (Carpinus caroliniana)
     American Hazelnut (Corylus americana)*
     Beaked Hazelnut (Corylus cornuta)*
Fagaceae
     Northern Red Oak (Quercus rubra)
     Black Oak (Quercus velutina)
     Northern White Oak (Quercus alba)
     Swamp White Oak (Quercus bicolor)
     Northern Pin Oak (Quercus ellipsoidalis)
     Burr Oak (Quercus macrocarpa)
     Dwarf Chinkapin Oak (Quercus prinoides)
Aceraceae
     Box elder/Ash-Leaf Maple (Acer negundo)
     Black Maple (Acer nigrum)*
     Striped Maple (Acer pensylvanicum)*
     Norway Maple (Acer platanoides)*
     Red Maple (Acer rubrum)*
     Silver Maple (Acer saccharinum)*
     Sugar Maple (Acer saccharum)*
     Mountain Maple (Acer spicatum)*
     Tatarian Maple (Acer tataricum)*
Oleaceae
     White ash (Fraxinus americana)
     Olive (Olea europaea)
     Black Ash (Fraxinus nigra)
     Green Ash (Fraxinus pennsylvanica)
     Blue Ash (Fraxinus quadrangulata)
Salicaceae
    White Poplar (Populus alba)*
    Balsam Poplar (Populus balsamifera)*
    Eastern Cottonwood (Populus deltoides)*
    Big-Tooth Aspen (Populus grandidentata)*
    Black Poplar (Populus nigra)*
    Quaking Aspen (Populus tremuloides)*
    Purple Willow (Salix purpurea)
    Silky Willow (Salix sericea)
    White Willow (Salix alba)
    Peach-Leaf Willow (Salix amygdaloides)
    Gray Willow (Salix bebbiana)
    Pussy Willow (Salix discolor)
    Crack Willow (Salix fragilis)
    Shining Willow (Salix lucida)
    Black Willow (Salix nigra)
    Satiny Willow (Salix pellita)
    Meadow Willow (Salix petiolaris)
Moraceae
    White Mulberry (Morus alba)
    Red Mulberry (Morus rubra)
Juglandaceae
    White Walnut (Juglans cinerea)
    Black Walnut (Juglans nigra)
    Bitter-Nut Hickory (Carya cordiformis)
    Shag-Bark Hickory (Carya ovata)
Platanaceae
     Sycamore (Plantanus occidentalis)

Grass pollens

     Johnson (Holcus halepensis)
     Bahia (Paspalum notatum)
     Bermuda (Cynodon dactylon)
     Orchard (Dactylis glomerata)
     Kentucky blue grass (Poa pratensis)
     Timothy (Phleum pratense)
     Rye (Lolium perenne)
     Meadow fescue (Festuca elatior)
     Red top (Agrostis alba)
     Sweet vernal (Anthoxanthum odoratum)
    Fox-Tail Barley (Hordeum jubatum)*
    American Beach Grass (Ammophila breviligulata)*
    Black Bent (Agrostis gigantea)
    Winter Bent (Agrostis hyemalis)
    Upland Bent (Agrostis perennans)
    Spreading Bent (Agrostis stolonifera)
    Annual Blue Grass (Poa annua)*
    Flat-Stem Blue Grass (Poa compressa)*
    Kentucky Blue Grass (Poa pratensis)*
    Curly Blue Grass (Poa secunda)
    Rough-Stalk Blue Grass (Poa trivialis)*
    Big Bluestem (Andropogon gerardii)*
    Kalm's Brome (Bromus kalmii)
    Smooth Brome (Bromus inermis)*
    Japanese Brome (Bromus japonicus)
    Reed Canary Grass (Phalaris arundinacea)*
    Common Canary Grass (Phalaris canariensis)*
    Broom-Corn (Sorghum bicolor)*
    Corn (Zea mays)
    Clustered Fescue (Festuca paradoxa)
    Red Fescue (Festuca rubra)
    Nodding Fescue (Festuca subverticillata)
    Side-Oats Grama (Bouteloua curtipendula)*
    Blue Grama (Bouteloua gracilis)*
    Prairie Koeler's Grass (Koeleria macrantha)
    Field Meadow-Foxtail (Alopecurus pratensis)*
    Tufted Meadow-Foxtail (Alopecurus carolinianus)*
    Common Reed (Phragmites australis)*
    Perennial Rye Grass (Lolium perenne)
    Meadow Rye Grass (Lolium pratense)
    Poison Darnel (Lolium temulentum)*
    Perennial Rye Grass (Lolium perenne)
    Meadow Rye Grass (Lolium pratense)
    Poison Darnel (Lolium temulentum)*
    Coastal Salt Grass (Distichlis spicata)*

Weed pollens

Composite family
     Mugwort (Artemisia vulgaris)
     Short ragweed (Ambrosia artemisiifolia)* Chenopod-amaranth
Chenopod (mostly in Western USA)
     Russian thistle (Salsola kali)
     Burning bush, summer cypress (Kochia scoparia)
     Lamb's quarter (Chenopodium album)
Amaranth
     Red root pigweed (Amaranthus retroflexus)
Dock-knotweed family (Buckwheat family)
     Red sorrel (Rumex acetosella)
Plantaginaceae
     Narrow-leafed plantain (Plantago lanceolata)

Molds

     Alternaria alternata
     Cladosporium herbarum
     Cladosporium cladosporioides
     Penicillium chrysogenum
     Aspergillus fumigatus
     Epicoccum nigrum
     Helminthosporium solani
 

     * known to be only moderately allergenic