Shepherd’s purse (Capsella bursa-pastoris) is a common, edible, and medicinal weed in the mustard family, widely recognized for its heart-shaped seed pods. Historically, it is used to stop bleeding, reduce menstrual pain, and treat urinary issues. The herb is rich in vitamins A, C, and K, and can be consumed as a peppery green or prepared as a tea or tincture.