Pepper, alias: horn pepper, long pepper, vegetable pepper and lantern pepper, Latin name: CapsicumannuumL. It is an annual or limited perennial herb of Magnoliaceae and Capsicum. Stems subglabrous or puberulent, branches slightly zigzag. Leaves alternate, the top nodes of branches are not elongated to form twins or clusters, oblong, oval, ovoid or ovoid-lanceolate, entire, short tapering or acute at the top, and narrow wedge at the base; Flowers solitary, drooping; Calyx cup-shaped, inconspicuously 5-toothed; Corolla white, lobes ovate; The anthers are grayish purple. The fruit stalk is thick and drooping; The fruit has long fingers, the tips of which gradually become sharp and often bend. It is green when it is immature, and turns red, orange or purple when it is mature, which is spicy. Seeds flat kidney-shaped, pale yellow.