Type of
allergy		 Potential cross reactions
Birch tree pollen almonds, apples, apricots, carrots, celery, cherries, coriander, fennel, hazelnuts, kiwi, nectarines, parsley, parsnips, peach, pears, peppers, plums, potatoes, prunes, walnuts
Grass pollen celery, melon (watermelon), oranges, peaches, tomatoes
Ragweed pollen bananas, melons (watermelon, cantaloupe, honeydew), gourd family (cucumber, zucchini and squash)
Alder pollen celery, pears, apples, almonds, cherries, hazelnuts, peaches, parsley
Mugwort pollen celery, fennel, carrots, parsley, coriander sunflower, peppers