Radix Stellariae (Yinchaihu)

Naming
Yin Chai Hu (Radix Stellariae)-Ben Cao Gang Mu Shi Yi (Supplement to Compendium of Materia Medica)

Origin
The root of Stellaria dichotoma L. var. lanceolata Bge of family Pink.

Location
Inner Mongolia Autonomous Region and northwest of China.

Harvest
Collected in spring and summer when plant sprouting, or in the end of autumn when stem and leaf withered.

The actual smell and taste
Light smell, slight sweet taste.

Best quality
Even volume, fine root bark, solid texture, gray-yellow peel, yellow-white cross-section with center in chrysanthemum-like shape.

Processing
Dried after throwing the extra stem, fibrous root and sands away; sliced and unprocessed.

Property
Sweet, slightly bitter, light cold; liver and stomach meridians entered.

Actions
Clear deficiency heat.

Indications
Bone-steaming, strain fever, malnutrition fever

It mainly excels at clearing deficiency heat, relieving malnutrition fever, and is commonly indicated for syndrome of liver and kidney deficiency manifested as bone-steaming, strain fever, tidal fever and night sweat. It is often combined with yin-nourishing and heat-clearing herbs such as Bie Jia and Di Gu Pi in Qing Gu San from Zheng Zhi Zhun Sheng.

For the residual pathogenic in terminal stage of warm diseases manifested as lingering lowgrade fever, it is often combined with herbs in fragrant nature and clearing action so as to get reinforcement, such as Herba Artemisiae Annuae (Qinghao), Bie Jia, Cortex Radicis (Mudanpi), etc., for instance, it is combined with Bie Jia in Yin Jia San recorded in Wen Zheng Zhi Gui (Guideline on Epidemic Warm Disease).

Furthermore, it is also excels at reducing malnutrition fever.

For food or parasite stagnation induced children's malnutrition fever, abdominal intumescence, emaciation, thirst and withered hair, it is often combined with spleen-invigorating, qi-tonifying, digestant and vermifugal herbs to mutually take effects of resolving food-stagnation, killing parasites, invigorating spleen and curing malnutrition. For instance, it is combined with Rhizoma Atractylodis Macrocephalae (Baizhu), Shi Jun Zi and so on in Chai Hu Qing Gan San recorded in Yi Zong Jin Jian.

Dosage and Administrations
Decoct 3~9 g.