Broad-leafed dock

This plant might have been used to wrap up farm house butter. The 'milk' of the dock leaf is known to contain tannins and oxalic acid, which is an astringent. Broadleaf dock leaves have been used to soothe burns, blisters, and nettle stings. A tea prepared from the root was thought to cure boils http://en.wikipedia.org/wiki/Rumex_obtusifolius#Medicinal_uses_of_the_h…