This is an annual or biennial plants of Erigeron in Compositae. Because of its strong reproductive ability and adaptability, it has been included in the list of alien invasive species and joined the agricultural pest system in China.

Clearing away heat and toxic materials, and resisting malaria. Acute gastroenteritis, malaria; Externally used for treating gingivitis and snake bite.

Clearing away heat and toxic materials and helping digestion. Treat dyspepsia, enteritis and diarrhea, infectious hepatitis, lymphadenitis and hematuria. Root, pound and apply swollen gums. Digestion promoting, diarrhea relieving, detoxification and hemostasis. Oral administration: decoction, 50 ~ 100g.