Tansy is a perennial herbaceous plant known for its distinctive yellow button-like flowers and fern-like leaves. It belongs to the Asteraceae family and is native to Europe and Asia. The plant typically grows to a height of about three feet and has a strong, aromatic scent. Tansy has been traditionally used for various medicinal purposes, including as a remedy for digestive issues and to repel insects. However, it contains toxic compounds and should be used with caution. In gardens, tansy can be an attractive addition due to its bright flowers and ability to deter pests. It thrives in well-drained soil and full sunlight.