[Research progress on chemical constituents of Laggera plants in China].

Laggera plants are traditionally used as folk medicine to treat bacterial infection, inflammation and fever in China. Three species, Laggera alata, L. intermedia and L. pterodonta, grow in China. Modem clinical studies show that L. pterodonta is a good medicine against inflammation. More than 100 compounds were obtained from these plants. In order to assist in medicinal application of this species of plants, progresses made in this field are systemically reviewed in this article.