Seed of Vaccaria segetalis (Neck.) Garcke, family Caryophyllaceae.
small globular, 1.5-2.0 mm in diameter. Surface black, slightly lustrous;
numerous spots, a pale round-dotted hilum and a shallow groove seen under
a magnifier. Bitter in taste, mild in nature, and attributive to liver
and stomach channels.
1. Promote blood circulation and relieve carbuncle, and promote menstruation
and lactogenesis: For blood-stasis syndrome with amenia or dysmenorrhea,
dystocia and carbuncle, especially for acute mastitis
and postpartum galactostasis.
2. Promote diuresis: For stranguria complicated by hematuria.
Its decoction or alcoholic extract induce uterine contaction of rats in
Contraindicated for pregnant women.