Leonurus japonicus
Leonurus japonicus, commonly called oriental motherwort or Chinese motherwort, is a herbaceous flowering plant native to Asia, including Korea and Japan, and China to Cambodia.
Description
Plants are annual or biennial, growing from taproots. The stems are upright growing to a height of. The flowers are sessile and produced in verticillasters. The calyx is tubular-campanulate shaped and long with broad triangle shaped teeth. The corolla is white or reddish to purplish red in color. Plants bloom from June to September.It has escaped cultivation and become naturalized in other parts of the world including South and North America, Europe and Africa.