Fritillaria is a perennial herb. Its bulbs are used for medicine. Named after its shape, Notes on Materia Medica Classic said: "It looks like a gathering of shellfish", hence the name Fritillaria, which can relieve cough, eliminate phlegm, clear heat and dissipate stagnation. Alias: diligent mother, bitter vegetable, bitter flower, empty grass, solid medicine. Produced in Qinghai, Sichuan, Yunnan, Qinba Mountain area of Shaanxi, Gansu and other places.