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Hollow stem, grows to 6 ft (2m), common roadside plant. Has somewhat unpleasant flavor, stronger than garden chervil with hint of carrot. Leaves used as anti-inflammatory, antiseptic, anti-spasmodic, anti-viral and fungal. Expectorant (cough, cold, asthma) used for depression, stress, insomnia, Alzheimers, Parkinson’s, crohn’s, diabetes, leukemia, kidney, stomach, digestive dosorders, dropsy, migranes. Leaves used for green dye. Flowers decorative uses. Causes uterine contractions, do not take while pregnant.