Leonurus japonicus, commonly called oriental motherwort[3] or Chinese motherwort, is a herbaceous flowering plant native to Asia, including Korea and Japan, and China to Cambodia.

[4] It has escaped cultivation and become naturalized in other parts of the world including South and North America, Europe and Africa.

Leonurus japonicus is one of the 50 fundamental herbs used in traditional Chinese medicine, where it is called yìmǔcǎo (Chinese: 益母草), literally "beneficial herb for mothers".

It is used in cases of menstrual and delivery disorders caused by blood stasis such as dysmenorrhea and amenorrhea.

[5] Chemical compounds found in Leonurus japonicus include guanosine, rutin, syringic acid, and stigmasterol.