MOTHERWORT (Leonurus cardiaca) Perennial medicinal menstruation labor PREGNANCY ALERT sow: early spring, early summer seeds: $1.25/pkt (Richters, Canada) Especially valuable for female weaknes and disorders. Helps calm the entire nervous system. An old remedy for strengthening the heart. Menstruation-promoting properties. LABOUR: used during the last few days of pregnancy to prepare the uterus for childbirth. Concentrations of leonurine and stachydrine, two chemical constituents that promote uterine contractions substantiate its traditional use to promote menstruation and hasten childbirth. PREGNANCY ALERT: Because of its uterine contraction and menstruation- promoting properties, it should not be used during pregnancy, except in the last few days when it is desirable to bring on labor. ---------------------- MOTHERWORT, SIBERIAN (Leonurus sibiricus) Annual medicinal (Yi-mu-coo) sow: early or late spring seeds: $2.50/pkt (Richters, Canada) Medicinal herb, valued especially in Chinese medicine. Used as an emmenagogue, diuretic and vasodilator. Same cautions against use during pregnancy.