| Family | Plants Foods |
| Apple | Apple, crab apple, pear, quince |
| Banana | Banana and plantain |
| Beech | Beechnut and chestnut |
| Berries | Blackberry, boysenberry, dewberry, loganberry, raspberry, rose hips, strawberry |
| Birch | Filbert, hazelnut, oil of birch (wintergreen). |
| Buckwheat | Buckwheat, garden sorrel, rhubarb |
| Cashew | Cashew, mango, pistachio |
| Chocolate | Chocolate (cocoa), cola, gum karaya |
| Citrus | Citron, grapefruit, kumquat, lemon, lime, orange, pomelo, tangelo, tangerine |
| Composite | Artichoke, chamomile, chicory, dandelion, endive, escarole, lettuce, safflower, sunflower seeds, tarragon (Ragweed and the insecticide pyrethrum belong in this family) |
| Conifer | Juniper berry (gin) and pine nuts |
| Fungus | Certain cheeses, mushroom, truffle, yeast (antibiotics and the molds that cause inhalant allergy belong to this family) |
| Ginger | Cardamom, ginger, turmeric |
| Gooseberry | Currant and gooseberry |
| Goosefoot and Beet | Beet, chard, lamb's-quarters, spinach, sugar beet |
| Grain (cereal or grass) | Bamboo shoots, barley, corn, lemongrass, millet, oats, rice, rye, sorghum, sugar cane, wheat, wild rice |
| Heath | Blueberry, cranberry, huckleberry |
| Laurel | Avocado, bay leaf, cinnamon, sassafras |
| Legume | Alfalfa, bean (kidney, lentil, lima, mung, navy, pinto, soy, string), carob, guar gum acacia, kudzu, licorice, pea (black-eyed, chick-pea, green), peanut |
| Lily | Asparagus, chive, garlic, leek, onion, sarsaparilla, shallot |
| Mallow | Cottonseed, hibiscus, okra |
| Melon or Gourd | Cantaloupe, cucumber, gherkin, honeydew, muskmelon, pumpkin, squash, watermelon |
| Mint | Basil, catnip, horehound, lemon balm (melissa), marjoram, mint, oregano, peppermint, rosemary, sage, savory, spearmint, thyme |
| Morning-Glory | Jicama and sweet potato |
| Mulberry | Breadfruit, fig, mulberry |
| Mustard | Horseradish, mustard, radish, rutabaga, turnip, watercress and varieties of cabbage, broccoli, brussels sprouts, cabbage kraut, cauliflower, Chinese cabbage, collards, kale, kohlrabi |
| Myrtle | Allspice, clove, guava |
| Nightshade or Potato | Eggplant, potato, tobacco, tomato. This family includes all foods called "pepper" (except black and white pepper), such as cayenne, chili pepper, green pepper, hot pepper sauce, paprika, pimiento red pepper |
| Palm | Coconut, date, sago starch |
| Parsley | Carrot, celeriac, celery, lovage, parsley, parsnip. Also these spices: angelica, anise, caraway, cerely seed, coriander, cumin, dill, fennel |
| Plum | Almond, apricot, cherry, nectarine, peach, plum, prune, wild cherry |
| Walnut | Black walnut, butternut, English walnut, hickory nut, pecan |
| Yam | Chinese potato and yam |