Biennial herb, the main stem length is10 ~15cm, and the whole plant is densely covered with white fluff. Stems erect, usually branched at base, clustered. Leaves alternate, the basal leaves fall off after flowering, the lower and middle leaves are spoon-shaped or oblanceolate, 2 ~ 6 in length and 4 ~ 12 mm in width, the base gradually narrows and descends, and there are white hairs on both sides. The heads are numerous and arranged in an umbrella shape; Involucre spherical, bell-shaped, 3-layer involucre, golden yellow, dry film; The flowers are yellow, the corolla of the marginal female flowers is filiform, and the central bisexual flowers are tubular. Achenes are rectangular, papillate, and the crown hairs are yellow and white. The flowering period is from April to July, and the fruiting period is from August to September.

Born on hillsides, roadsides and fields.

Functions mainly include relieving cough and asthma, lowering blood pressure, expelling wind and removing dampness. Used for treating common cold, cough, bronchitis, asthma, hypertension, bean disease, rheumatism, lumbago and leg pain; External use for treating traumatic injury and poisonous snake bite.