POLLEN

TYPICAL MONTHS

OF POLLINATION

SPECIES CROSS REACTS WITH

CONCOMITANT FOODS

Bahia

May-Oct

None

None

Bermuda Grass

June-August

All grama grasses

None

Timothy Grass

May-August

Brome, Fescue, June, Rye, Blue, Redtop and most cereal grain/grass pollens: oats, barley, rye, wheat

Apples, carrots, celery, grain flours (wheat, rye, barley, oats),

Legumes(peas, beans, peanuts, soybean), cottonseed

White Alder

Feb-May

Birches

Apples, carrots, celery, hazelnuts, wintergreen, birch tea, potatoes, oranges

Eastern Cottonwood

March-April

Poplars

Lettuce, wheat, tea

Box Elder

March-May

Maples

Maple extract, flavoring, sugar, syrup

Chinese Elm

Feb-April

Sept-Nov

None

Milk, mint chocolate

Western Juniper

Feb-April

Sept-Nov

Arizona Cypress, Cedar

Beef, malt, yeast: baker’s, brewer’s

Mulberry

March-April

None

None

Oak

April-June

Beech Family

Eggs, apples, chestnut

White Pine

May-July

None

None

Russian Olive

April

None

None

Yellow Dock

April-May

None

None

Firebush

July-Oct

None

None

Lamb’s Quarters

Sept-Oct

None

Pork

Marshelder

Aug-Oct

None

Wheat, tea

Mugwort

July

Sage (pollen, not the spice)

Celery, coriander/cilantro, potato, tomato, tobacco (snuff/chewing)

Rough Pigweed

June-Oct

None

Pork, black pepper, lettuce

English Plantain

April-Sept

None

None

False Ragweed

Aug-Sept

All other Ragweeds (western, short, giant, etc.)

Melons, bananas, milk, mint, egg

Russian Thistle

July-Oct

None

none

Sagebrush

Sept-Oct

None

Potato, tomato