- Source: Verbascum boerhavii
Verbascum boerhavii, the annual mullein, is a species of flowering plant in the family Scrophulariaceae, native to Spain (including the Balearic Islands), France (including Corsica), and Italy. It has been traditionally used as a treatment for haemorrhoids. It contains the phenylpropanoid glycoside poliumoside, which has an affinity for metalloproteinases.
