Asperula odorata, commonly known as sweet woodruff, is a perennial herb native to Europe and parts of Asia. It typically grows in shaded, moist woodlands and features whorled leaves and small, white star-shaped flowers that bloom in spring. The plant is known for its sweet scent, which intensifies when dried. Sweet woodruff has been used historically in herbal medicine and as a flavoring agent in beverages, particularly in German May wine. It contains coumarin, a compound that contributes to its fragrance and has mild anticoagulant properties. However, excessive consumption can be toxic due to the presence of other compounds.