motherwort 
noun
A tall strong-smelling European plant of the mint family. It is used in herbal medicine, especially in the treatment of gynaecological disorders.
- Leonurus cardiaca, family Labiatae.
- Chewing insects can spread the disease from weeds as they feed, so be sure to remove all nearby pokeweed, nightshade, catnip, horsenettle and motherwort.
- Uterine-stimulating herbs, such as black cohosh, blue cohosh, achyranthes root, goldenseal, motherwort, wild ginger, and red raspberry leaf, have been used to induce labor.