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Mulberry, also known as mulberry fruit, jujube, arrowhead, etc., is the mature fruit ear of Mulberry (Morus alba Linn.) of Moraceae, most of which are red-purple or black oval flowers and fruits, about 1 ~ 2.5 cm long, with thick juice like honey, sweet and sour fragrance and rich nutrients. According to scientific identification, fresh fruit contains a lot of free acids and 16 kinds of amino acids, in addition to minerals and trace elements such as zinc, iron, calcium and manganese, as well as carotene, fructose, glucose, pectin succinate, cellulose, etc., so it is known as the "third generation fruit" together with seabuckthorn and raspberry. It is listed as one of the "medicine and food homologous" agricultural products as "both food and medicine" by the Ministry of Health.
Most mulberries are clustered into an oval or oblong aggregated flower and fruit, which is formed by gathering most small drupes, and is oblong, 2-3cm long and 1.2-1.8cm in diameter. It is green at first maturity, and becomes fleshy, dark purple or red after maturity, with small seeds. The flowering period is March-May and the fruit period is May-June. Mulberry will also appear yellow-brown, brown-red to dark purple (rare color is milky white after maturity), with short fruit stalks. Drupe ovoid, slightly flat, about 2mm long and 1mm wide, with 4 fleshy perianth pieces outside. The smell is slightly sour and sweet.
Mulberry trees generally have a height of 2 ~ 15m, a petiole length of about 1. ~ 2.5cm, and broadly ovoid or ovoid leaves. Mulberry tree is dioecious, its flowers are unisexual, and mulberry fruit is drupe, which is a kind of aggregated flower and fruit with dense oblong or ovoid fruit. Mulberry fruit is green when it is first ripe, about 1.～2.5 cm in length, and red or dark purple when it is ripe. Mulberry trees are widely distributed in the north and south of China, with the southern flowering period from January to March, the northern flowering period from March to May, the southern fruiting period from March to April, and the northern fruiting period from May to June. Mulberry is the fruit of mulberry tree, which grows mostly in warm and humid climate. Mulberry began to sprout at about 12°C, and it was composed of small drupes, with a diameter of .5～1. cm and a length of 1.5～2. cm. Mulberries are dark purple, brownish red or yellowish brown, and a few are milky white with short fruit stalks. Mulberry tastes sweet and slightly sour.