Leonurus cardiac (Motherwort)

Leonurus cardiaca, commonly known as Motherwort, is a perennial herb belonging to the mint family (Lamiaceae). It is native to Europe and Asia and has a long history of use in traditional medicine. The aerial parts of the plant—especially the leaves and flowering tops—are harvested and used in dried or extract form.

Motherwort contains a variety of phytochemicals, including alkaloids, flavonoids, iridoids, and the bitter compound leonurine, which are associated with potential effects on the cardiovascular, nervous, and reproductive systems in other species. Its use is generally based on traditional herbal practices rather than equine-specific evidence.