Niuyan Maqian is a vine plant of the Maqian Koma genus. Small branches have hooks and opposite leaves, while old branches have thorns; The leaves are round, oval, or elliptical in shape, with a rounded or broadly wedge-shaped base and a sparse shallow heart-shaped shape; Calyx lobes ovate triangular, corolla white; The fruit is in the shape of a table tennis ball, red or orange yellow in color; Seed oblate; Flowering period from April to June; The fruiting period is from July to December. According to the "Outline of Xinhua Materia Medica", cow's eye horse money is recorded as follows: "Seed: bitter in taste, cold in nature. It has great toxicity. It has the effects of unblocking meridians, reducing swelling, and relieving pain. It can be used for symptoms such as numbness in hands and feet, hemiplegia, and external use for treating dysentery, gangrene, swelling, and injuries caused by falls and blows