Alisma plantago aquatica

Description:The Common Water-plantain (Alisma plantago-aquatica), also known as Mad-dog weed, is a perennial flowering plant native to most of the Northern Hemisphere, in Europe, northern Asia, and North America. It is found on mud or in fresh waters.The dried leaves of the water plantain can be used as both a diuretic and a diaphoretic. They have been used to help treat renal calculus, cystitis, dysentery and epilepsy.The roots have formerly been used to cure hydrophobia, and have a reputation in America of curing rattlesnake bites. However this is not prooven.