found in leaves, but it is also seen in celery, thyme, dandelion, rinds, barks, clover blossom, and ragweed pollen. It has also been isolated from Salvia tomentosa. Dietary sources include celery, green pepper, thyme, perilla, chamomile tea, carrots, olive oil , peppermint, rosemary, navel oranges, and oregano. Artichoke also contains the