Motherwort (Leonurus cardiaca), sometimes known as Throw-wort, Lion's Ear and Lion's Tail, is a flowering plant in the family Lamiaceae. Originally from Central Asia it is now found worldwide, spread largely due to its usefulness as a herbal remedy.

The mature plant is between two to four feet in height, has pink flowers, and grows as a weed along roadsides and vacant fields. It is very useful for a variety of ills, and is very skin nourishing, much like stinging nettle or dandelion.