Blueberries, which means blue berries. In a narrow sense, it refers to a group of flowering plants of Vaccinium and Vaccinium (scientific name: cyanococcus), and in a broad sense, it can include all species with blue berries in Vaccinium.

Vaccinium and blueberry belong to the same genus. Vaccinium is better for eyes, because it can directly promote the growth of rhodopsin and enhance the sensitivity of eyes to darkness and weak light, while blueberry can't.

Blackberry, also known as raspberry and raspberry, is a widely distributed and well-known shrub belonging to the genus Raspberry. Its fruit is nutritious, rich in various amino acids and trace elements necessary for human body, and has the function of promoting blood coagulation. Blackberry is a dicotyledonous plant, which has the functions of delaying aging, improving human immunity, promoting brain metabolism, lowering blood pressure and blood lipid, and resisting arrhythmia. The fruit is aggregate fruit, and the small black or purple drupe grows on the juicy receptacle. Some creeping species of Rubus have no wood fibers on their stems and are called raspberries.