Cows, horses, and swine, refuse this noxious and, according to Bechstein, poisonous weed; nor is it relished by sheep and goats. - An infusion of the leaves, however, has been used as a diuretic, and purgative; a decoction of the flowers is-said to be very efficacious in cutaneous disorders. An ointment prepared from the leaves, is reputed to afford considerable relief in that painful malady, the piles. - In dyeing, Suckow and Dambourney remark, that the fresh herb, while in blossom, Imparted an olive colour to woollen cloth and silk. Bohmer thus obtained only a weak yellow liquor, of a greenish shade.