Atractylodes lancea

Rhizoma Atractylodis japonica

Japanese Atractylodes rhizome

[alias] Atractylodes lancea and Atractylodes lancea.

[source] ATRAC, a Compositae plant tylodesjaponicaKoidz.ezKitam The root of.

[plant morphology] perennial herb, up to 70 cm in height. The petiole is 2.5-3cm long; the leaves in the lower part of the stem are 3-5-feathered, the lateral lobes are oblong, obovate or elliptic, the marginal spines are flat or curved, and the apical lobes are large; the leaves in the upper part of the stem are 3-split to undivided. The inflorescence is terminal, with a ring of leaflike involucre and 6-8 layers of involucre; the flowers are numerous, bisexual and unisexual; the two-sided flowers have long pinnate hairs with white corolla and slender tube; the stamens are 5; the ovary is inferior, densely covered with white pubescence. Achenes oblong, white. The flowering period is from August to September, and the fruiting period is from September to October.

It grows on hillside, under oak forest and among shrubs. It is mainly produced in Heilongjiang, Jilin and Liaoning.

[harvest] Atractylodes lancea Koidz.

[traits] rhizomes are nodular cylindrical, 4-12cm long and 1-2.5cm in diameter. The surface is dark brown, with root marks, fine fibrous roots and residual stem marks. It is light in weight, uneven in fracture surface and fibrous. It has strong special aroma, pungent and slightly bitter.

[chemical constituents] it contains volatile oil, including apine diene, diacetyl atractylodinol, atractylolone and atractylolide I.

[nature, taste and function indications] Atractylodes lancea.