Abstract
The species Lychnophora salicifolia Mart. is popularly known as "arnicão", and its frequent ethnobotanical use is the same observed for the false arnica or "arnica da serra" (Lychnophora ericoides Mart.) as anti-inflammatory and analgesic. The vicenin-2 is a flavonoid C-glycoside present in large amounts in the hydroalcoholic extract of L. salicifolia leaves. This molecule has anti-infla…