Blackberry is a shrub of the Rubus genus in the Rosaceae family. It is mainly native to the northern temperate zones of the New and Old Worlds. It is especially abundant in eastern North America and the Pacific coast. It is a common sprout forest and hedge plant in the British Isles and Western Europe. . Usually biennial, the stems are upright, semi-erect or climbing, with thorns, and some cultivars have no thorns. The leaves are three-headed or palmately compound, with broad leaflets, oval, and stalks. The leaf margins are coarsely toothed and most of the leaves survive the winter. The inflorescences are terminal and the flowers are white, pink or red. The fruit is an aggregate fruit, with small black or reddish-purple drupes growing on juicy receptacles. Some trailing species of Rubus have no woody fibers on their stems and are called dewberries. There are now tens of thousands of blackberry hybrids and variants, with a planting area of ??4,000 hectares (10,000 acres) in the United States and 405 hectares (1,000 acres) in the United Kingdom. Blackberries are rich in iron and vitamin C and can be eaten fresh, candied, jam and jelly, or made into pies. There are a small amount in some mountainous and hilly areas in my country.
