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A person allergic to a plant may be allergic to related foods. This is a list of possible food and plant relationships.

  • Apple – pear and quince
  • Birch, alder and hazelnut – almonds, apples, apricots, carrots, celery, cherries, chestnuts, coriander, fennel, kiwi, hazelnut, nectarines, parsley, parsnips, peaches, pears, peppers, plums, potatoes, prunes, soy and wheat
  • Buckwheat – rhubarb
  • Cashews – pistachio and mango
  • Citrus – orange, lemon, lime, grapefruit and tangerine
  • Cola nut – cocoa and cola
  • Fungi – yeast and mushroom
  • Ginger – turmeric and cardamom
  • Goosefeet – beet, spinach and Swiss chard
  • Gourd – watermelon, cucumber, cantaloupe, pumpkin and squash
  • Grass (grains) – corn, wheat, rice, oats, barley, rye, brown cane sugar, oranges
  • molasses, bamboo shots, sorghum, potatoes, celery, tomato, kiwi and melons
  • Heath – blueberry and cranberry
  • Laurel – cinnamon, bay leaf, avocado and sassafras
  • Lily – onion, garlic, asparagus, chives, sarsaparilla and leek
  • Mallow – okra and cottonseed
  • Mint - peppermint, sage, thyme, spearmint, basil, balm, bergamot, horehound, marjoram, savory and rosemary
  • Mugwort – celery, coriander, carrots, fennel, parsley and sunflower
  • Ragweed – bananas, melons, cucumber and zucchini