Blackberry, a deciduous creeping shrub of the Rosaceae family, belonging to the genus Rubus. The branches of blackberries are arched or climbing, and they often take root at the point of contact with the ground; Small leaves are broadly elliptical in shape, with rounded and blunt tips, and wide wedge-shaped or nearly circular bases. The leaf margins have coarse serrations; Small leaves have short stalks; Terminal inflorescence; Petals white, pink or red, anthers purple; Aggregate fruit nearly spherical, black or dark purple red, hairless; Blackberry flowering period from May to June; The fruiting period is from July to August. The name "blackberry" no longer has a clear origin, but it was first recorded in "Bencao Tongxuan": "Raspberry, sweet and smooth, enters the kidneys, promotes impotence, solidifies essence and absorbs drowning." Raspberry refers to blackberry.