Yanhusuo northeast yanhusuo

Rhizoma Corydalis amurensis

Amur corydalis rhizome

[alias] tuyuanhu.

[source] Rhizoma Corydalis of Papaveraceae CorydalisambiguaCham.etSchlecht . var. amurensis Maxim.

[plant morphology] perennial herb, 10-15cm high. Stem simple, protruding from axils of scales. The leaves are alternate, with long stalks; the leaves are incomplete, double and triple lobed, and the lobules are narrowly obovate or narrowly ovate oblong. Raceme at top of branch; bracts ovate oblong; sepals 2, caducous. Petals 4, purplish red or blue, varying in size, lip shaped, upper lip with a distance, opposite to lower lip; stamen 6; pistil 1, strip-shaped. Capsule fusiform, short columnar. The flowering period is from April to May and the fruiting period is from June to July.

Born in the forest and valley, forest edge. It is produced in Northeast China.

[picking and processing] the same as Corydalis yanhusuo, it is also processed after rubbing off the skin.

[character] the tuber is oblate, globular and growing, with a diameter of 0.5-1.5cm. The surface is yellow or yellowish brown with no obvious wrinkles, the upper part is slightly concave with stem marks, and the bottom is visible with adventitious root marks; the skin is dark brown with smooth surface. It is hard in quality, white or yellowish white in cross section and bitter in taste.

[chemical constituents] it contains a variety of biological constituents, including tetrahydropalmatine, tetrahydropalmatine, tetrahydropalmatine, tetrahydropalmatine, etc.

It is the same as Corydalis yanhusuo.