Atractylodes lancea is a plant of Atractylodes in Compositae.
Atractylodes lancea is a perennial herb. Rhizomes procumbent or obliquely ascending, thick and long, or usually knotted, with many adventitious roots of equal thickness, equal length or nearly equal length.
The stems are erect, with a height of 15 ~ 100cm, solitary or rarely clustered, and the lower or middle part is often purple, unbranched or the upper part is rarely branched from the lower part, and all the stems are sparsely spidery or hairless.
Basal leaves fall off at flowering stage; The middle and lower stems and leaves are 8- 12 cm long, 5-8 cm wide, 3-9 pinnately split or half-split, with a wedge-shaped or wide wedge-shaped base, few stems, swollen stems and half-embracing, or the petiole base is tapered by 3.5 cm; The parietal lobe and lateral lobe are unequal or nearly equal in length, round, obovate, oblique ovoid, ovoid or ovoid, with a width of 65438 0.5 ~ 4.5 cm; Lateral lobes 1 to 4 pairs, oval, oblong or obovate-oblong, 0.5 to 2 cm wide; Sometimes the middle and lower stems and leaves do not divide; The stems and leaves above the middle or only at the upper part are undivided, obovate, obovate, oblong or oblong, and sometimes there are 1 ~ 2 pairs of triangular thorns or shallow cracks on the base or near the base. Or all the stems and leaves are undivided, the middle stems and leaves are obovate, long obovate, oblanceolate or long oblanceolate, 2.2-9.5 cm long and1.5-6 cm wide, and the base is wedge-shaped and gradually grows into a petiole of 0.5-2.5 cm, and the upper leaf base sometimes has1-2 pairs of triangular teeth. The whole leaf is hard, papery, with the same color on both sides, green and hairless, with needle-like fringed hairs or triangular barbed teeth or double barbed teeth on the edge or lobe edge.
The flower heads are solitary at the top of stems and branches, but no obvious inflorescence arrangement is formed. The plant has more or less 2-5 flower heads. Involucre bell-shaped, diameter 1 to 1.5 cm. Bract leaves pinnately divided or deeply divided. The involucral bracts are 5 to 7 layers, arranged in imbricate shape, and the outermost layer and the outermost layer are ovate to ovate-lanceolate, 3 to 6 mm long; The middle layer is ovoid to ovoid or ovoid with a length of 6 to10 mm; The inner layer is linear, rectangular or linear, and the length is 1 1 to12mm. All bracts are blunt or round at the top, with sparse spider silk hairs on the edges, and the middle or upper bracts sometimes turn red and purple. The floret is white and 9 mm long.
Achenes obovate, densely covered with straight white hairs, sometimes sparsely hairy. The crown mane is brown or dirty white, 7 to 8 mm long, feathery, and the base is connected into a ring. The flowering and fruiting period is from June to 10.
Atractylodes lancea habitat
Distributed in Heilongjiang, Liaoning, Jilin, Inner Mongolia, Hebei, Shanxi, Gansu, Shaanxi, Henan, Jiangsu, Zhejiang, Jiangxi, Anhui, Sichuan, Hunan, Hubei and other places. Wild in hillside grasslands, forests, shrubs and rock crevices. Traditional Chinese medicine gardens are widely planted.
Growth habit
I like cool climate, and go outdoors on the shady slopes of low mountains, beside sparse forests, bushes and grasses. Strong vitality, barren hills, sloping fields and thin land can also be planted, but sandy loam with good drainage, low groundwater level, loose structure and rich humus grows best and is not suitable for planting on low-lying and waterlogged land.
The planting time of Atractylodes lancea is from early October to165438+1early October, and from late April to mid-May.