Latin Name: Leonurus heterophyllus Sweet.
Synonyms: Leonurus cardiaca; Lion's tail; Lion's ear
Active Ingredient: Alkaloids (including leonurinine and stachydrine), bitter glycosides (leonurine and leonuridin), tannins, a volatile oil, vitamin A.
Stachydrine:
CAS No.: 471-87-4
Molecular Formula: C7H13NO2HCl
Molecular Weight: 179.5.
Parts Used: Aerial parts.
Appearance: Fine brown powder.
Test Method: TCL
Specification: 10:1; Stachydrine>10%.
Motherwort (Leonurus cardiaca) is a flowering plant in the family Lamiaceae. Other common names include Throw-wort, Lion's Ear, and Lion's Tail. The latter two are also common names for Leonotis leonurus. Originally from Central Asia it is now found worldwide, spread largely due to its use as a herbal remedy.
Motherwort's several species are native to temperate regions of Europe and Asia and grow wild in Canada and the United States. For therapeutic purposes, the species are generally interchangeable. As its name implies, motherwort was used by the people in these geographical regions as a folk remedy for female reproductive disorders. It was also used for certain types of heart conditions, as the Latin word cardiaca indicates. Today, it is recommended by herbalists and Commission E for heart palpitations occurring with anxiety attacks or other nervous disorders.
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