Saponaria vaccaria (Wangbuliuxing)

Distribution:
Originally grown in Europe, now in northern part of China.
 
Properties (characteristics):
Bitter, Sweet, Acrid, Neutral
 
Channels (meridians) entered:
Liver, stomach.
 
Medical functions:
Anti-tumor.
Anti-early pregnancy. Increases the cAMP of  plasma and also the tissue of the uterus. Potential to prevent fertilization.
Using the seed of wang bu liu xing, with the pressure point of the ear, can constrict the gall bladder.
Sub-clinically is used for expelling stones in the gall bladder. By applying the pressure point of the ear, the gall bladder excretes bile and also expels the smallest stones into the intestine.

Actions & Indications:
For cuts and open wounds. 
To extract thorns and splinters.  
To promote flow of menses.  
To promote urination. 
For boils. 
For pain caused by overabundance of mother's milk.  
For lack of milk or milk not flowing (used as lactagogue.) 
Amenorrhea.
 
Cautions:
Use care in cases of pregnancy.