Rumex acetosella is a plant commonly known as sheep sorrel, sour weed, or field sorrel. Sheep sorrel is a perennial herbaceous plant that is commonly used in herbal remedies. The plant has been used for centuries for its medicinal properties, including its ability to alleviate inflammation and reduce pain. Sheep sorrel is also known for its high concentration of antioxidants, making it a popular ingredient in many health supplements. Other synonyms for Rumex acetosella include red sorrel, common sorrel, and garden sorrel. Despite its common name, sheep sorrel is not just a favorite of sheep but is used in many culinary dishes, such as soups and salads.