1, cranberry, also known as cranberry, cranberry, cranberry, its name comes from the original name "cranberry", named after the cranberry flower is very similar to the head and mouth of a crane. It is the common name of the subgenus Vaccinium of Ericaceae, and mainly grows in acidic peat soil in the cool zone of the northern hemisphere.

2. The cranberry fruit is berry-shaped, purple-red, with a diameter of 6-9 mm and a peduncle length of 1.5-2 cm. Its leaves are scattered, leathery, oblong or rectangular, the apex is tapering or short tail, and the base is slightly concave into a shallow heart shape and does not roll back.

3. There are three varieties of cranberries:

(1) China cranberry-Yageda

The wild adzuki bean fruit in Daxing 'anling, also known as the northern adzuki bean (known as Yageda by locals), is a short plant with oval leaves and plump. The fruits are strung together, and the seedlings are ripe and pressed on the ground. Often red, the output is extremely rich.

(2) Vaccinium myrtillus (i.e. northern Vaccinium myrtillus and Vaccinium myrtillus)

Distributed in North Asia, North America, Northern Europe and Central Europe, growing in marshes; Stems thin and tough, prostrate; The leaves are evergreen, broadly oval or oval, and the length is no more than 65438 0.2 cm; Flowers small, corolla reddish, 4-lobed; Berries are spherical, deep red, blackcurrant-sized, spotted and sour.

(3) Vaccinium americanum (i.e. Vaccinium macrocarpa)

Wild in most parts of northeastern United States, stronger than cranberries; Berries are large, spherical, rectangular or pear-shaped; Pericarp has many colors, from pink to crimson or red and white; Widely planted in Massachusetts, New Jersey, Wisconsin, Washington and Oregon near the Pacific coast.