Foxberry is a small shrub that produces tart, red berries, also known as lingonberries. This plant is native to North America and Europe. It's commonly used to make jams, sauces, and baked goods. Foxberry is also known as cowberry, mountain cranberry, and lowbush cranberry. Other synonyms for foxberry include bearberry, sandberry, marberry, and rock cranberry. These plants are similar in appearance and flavor to foxberry, but they all have their unique features. Bearberry, for example, is used in herbal medicine to treat urinary tract infections. Sandberry and marberry are grown as ornamental plants in gardens. Rock cranberry, on the other hand, is commonly found in the tundra regions of Canada.