Rubus Ursinus, commonly known as the California blackberry, is a native berry found in the western United States. This widely grown plant has several synonyms, including Pacific blackberry, trailberry, or dewberry. It grows as a thorny shrub with prickly canes and can reach a height of up to ten feet. The deep purple-black fruit is not only delicious but also has medicinal properties. It is rich in vitamins and antioxidants, which help the body fight diseases. The fruit is used in the preparation of jams, jellies, pies, and wines. Its multiple synonyms reflect its popularity and geographic distribution across the Pacific region.