Tansy - Tanacetum vulgare

Alternative names: Common tansy, bitter buttons, golden buttons

Parts used: Leaves, flowers

Actions and qualities: Antifungal, antibacterial, antiparasitic, and anti-inflammatory. It is used to treat migraines, nerve pain and joint pain. It is sometimes used as an insect repellent.

Specific uses: The most common use is as an oil. It is sometimes used as a culinary herb both fresh and dried, although it has fallen out of popularity due to its bitterness.

Contraindications: Can cause contact dermatitis from skin contact. Do not take in large amounts due to its toxicity. Side effects such nausea, dizziness and tremors have been noted. Pregnant and nursing mothers should consult a physician before use.

History and lore: It is used as a traditional funeral herb.