Chinese twinleaf rhizome

Chinese twinleaf rhizome

(records of medicinal plants in Northeast China)

[synonym] Saxifraga (Chinese plant Atlas), asarum Guizi, Coptis chinensis Franch, Hemerocallis (northeast medicine and plant records), Coptis koraiensis (northeast commonly used Chinese herbal medicine manual), Coptis pubescens (Liaoning Economic flora).

[source] rhizome of fresh Coptis chinensis (Berberidaceae).

[plant morphology] fresh Coptis chinensis

Herbs perennial, ca. 25 cm tall. Rhizome short, skin dark brown, inside bright yellow, dense fine and branched fibrous roots. The leaf blade is nearly round, about 5-8 cm in diameter, the base is deep heart-shaped, the top is slightly concave, the edge is wavy, 7-9 palmate veins, the leaf quality is thin, both sides are smooth and glabrous; the petiole is 13-25 cm long, glabrous, with purple brown scales at the base. Flowers solitary at the top of stem, about 2 cm in diameter; sepals 4, purplish red, caducous; petals 6-8, obovate, purplish red or purplish red; stamens 8; pistils 1, fusiform. Capsule. Seeds black, glossy. The flowering period is from April to May. The fruit period is from May to June.

It grows under forest, hillside, shrub or wet ground at the foot of mountain. It is distributed in Northeast China.

[collection] from September to October, the above ground parts and roots were removed and dried in the sun.

[medicinal material] the dry rhizome is very short, brown in appearance, with residual stem base and covered with small scales. The section is yellowish white, and the xylem often has gaps. It has special Qi and bitter taste.

Produced in Liaoning, Jilin, Heilongjiang and other places.

[chemical constituents] the roots and rhizomes contain berberine and other alkaloids.

[nature and taste] Handbook of commonly used Chinese herbal medicines in Northeast China: "bitter, cold. "

[functions and indications] Handbook of commonly used Chinese herbal medicines in Northeast China: "clearing away heat and toxin, strengthening stomach and stopping diarrhea. Treatment of fever, irritability, sore mouth and tongue, conjunctivitis, tonsillitis; loss of appetite, nausea and vomiting, bleeding, vomiting; enteritis, diarrhea, dysentery. "

[usage and dosage] for internal use: decoction, 1-2 yuan; for external use: eye washing with boiling water.