Downy haw is a name used to identify a plant belonging to the rose family. This plant is commonly known as the Hawthorn, and it is widely used in herbal medicine. It is known for its medicinal properties that lower blood pressure, promote digestion, and help alleviate heart problems. Other synonyms for Downy Haw include English Hawthorn, May Tree, May Blossom, and Hawberry. It is a small tree with beautiful flowers in spring and red berries in the fall. The berries, leaves, and flowers may be used to make tea, tincture, or capsules. Although it is known for its benefits, Hawthorn must be used with caution, especially if you are taking medication for heart disease.