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Rhizoma Atractylodis

Atractylodes atractylodes: irregular beaded or nodular cylindrical, slightly curved, occasionally branched, 3 -- 10cm long, 1 -- 2cm in diameter. The surface is gray-brown, with wrinkles, transverse curve and residual fibrous roots, with stem scars or residual stem bases at the top. Solid quality, yellow white or off-white section, scattered with a majority of orange yellow or brownish red oil chamber, slightly longer exposure...

Chinese pharmacopoeia:Rhizoma Atractylodis

Pinyin:Cānɡ Shù

English name:RHIZOMA ATRACTYLODIS

Alias:Red art, spear head vegetables


Source:
This product is the dried rhizome of the composite plant Atractylodes lancea (Thunb.) DC. Or Atractylodes chinensis (DC.) Koidz. Spring, autumn two seasons of digging, remove sediment, sun - dried, to knock off roots.


Characters:
Mao Cangzhu: irregular cylindrical or nodular cylindrical, slightly curved, occasionally branched, 3 ~ 10cm long, 1 ~ 2cm in diameter. The surface is gray-brown, with wrinkles, horizontal lines and residual fibrous roots, with stalk marks or residual stem base at the top. It is solid in quality, with a yellow-white or off-white cross-section, and most of the orange-yellow or brown-red oil chambers are scattered. After a long exposure, white fine needle-like crystals can be precipitated. The aroma is peculiar, slightly sweet, spicy and bitter.


Habitat Division:

① Atractylodes lancea
Herbs perennial, 30 to 80 cm high. The rhizomes are thick and irregular. The stem is single, round and has longitudinal edges, and the upper part is slightly branched. The leaves are alternate, leathery and thick; the leaves at the bottom of the stem are mostly 3-lobed, the apex of the lobes is pointed, the top 1 lobes are larger, ovate, wedge-shaped at the base, sessile but slightly embrace the stem; Shaped, about 4 cm long, 1 to 1.5 cm wide, sessile, with spiny teeth on the leaf margin. It is dark green above and slightly white powdery below. Inflorescences terminal, approximately 2 cm in diameter; total pedicel sessile, gerangs have leaf-shaped and lobed spiny bracts; total bracts 6-8 layers, lanceolate, membranous, green on the back, purple on the edges , With thin hairs; flat torus, many flowers, bisexual and unisexual flowers heterosexual; bisexual flowers have most feather-like long crested hair; corolla tube, white, sometimes reddish purple, apex 5-lobed, linear lobes ; Filaments separated; ovary inferior, long columnar, densely white pilose, style slender, stigma 2-lobed. The unisexual flower is generally a female flower, with 5 linear degenerate stamens, the degenerate stamens are completely separated, the apex is slightly curled, and the rest are the same as the bisexual flowers. Achenes are oblong, about 5 mm long, and are brownish yellow pilose. Flowering from August to October. The fruit period is from September to October.

Born in the drier place on the hillside. Distributed in Jiangsu, Zhejiang, Anhui, Jiangxi, Hubei, Hebei, Shandong and other places.

② Northern Cangzhu, also known as: Atractylodes lancea, gun head vegetable, mountain spinach
Herbs perennial, 30-50 cm high. The rhizomes are hypertrophic and nodular. The leaves are sessile; the lower part of the stem has a spoon-like shape, mostly 3 to 5 pinnate deep cuts, blunt apex, wedge-shaped at the base and slightly embraces the stem; the upper leaf is ovate-lanceolate to elliptic, 3 to 5 pinnately lobed Not cracked, leaf margin with hard spines. The head-shaped inflorescence is about 1 cm in diameter; the base leaf-like bracts are lanceolate and the edges are long dentate; the total bracts are mostly 5-6 layers; corolla tube, white, apex 5-lobed, lobes long ovate; , Not curled. The achene is densely covered with silvery white hairs. Flowering from July to August. The fruit period is from August to October.

It grows on hillside bushes and arid areas. Distributed in Jilin, Liaoning, Hebei, Shandong, Shanxi, Shaanxi, Inner Mongolia and other places.


Identification:

(1) The powder of this product is brown. The needle crystals of calcium oxalate are small, 5-30 μm long, and are irregularly packed in parenchyma cells. The fibers are mostly bundled, long fusiform, with a diameter of about 40 μm, very thick walls, and woody. There are many stone cells, sometimes connected with cork cells, polygonal, round or rectangular, 20 to 80 μm in diameter, and extremely thick walls. Inulin is more common, with a radial texture on the surface.

(2) Take 0.5g of this product powder, add 2ml of n-hexane, sonicate for 15 minutes, filter, and the filtrate is used as the test solution. Another 0.5g of Atractylodes Rhizome control medicinal material was made into a control medicinal solution in the same way. According to the thin layer chromatography (Appendix VI B) test, draw 2 ~ 6μl of each of the two newly prepared solutions above, and spot them on the same silica gel G thin layer plate, using petroleum ether (60 ~ 90 ℃) -ethyl acetate 20: 1) As a developing agent, unfold, take out, dry, spray with 5% p-dimethylaminobenzaldehyde in 10% sulfuric acid ethanol solution, and heat until the spots are clear. In the chromatogram of the test product, at the corresponding position of the chromatogram of the control medicinal material, spots of the same color are displayed; and there should be an identical main spot of dirty green (Atractylodes).


Processing: Atractylodes: remove impurities, wash, moisten, cut thick slices, and dry.

Bran fried: spicy, bitter, warm.

Meridian: Meridian of the spleen, stomach and liver.

Function: Indicating dryness, dampness and spleen, dispelling wind and dispelling cold, and improving eyesight. It is used for abdominal distension, diarrhea, edema, foot rash, rheumatism, cold and cold, night blindness.

Usage and dosage: 3 ~ 9g.

Storage: Store in a cool and dry place.


Remarks:

Treatment of dampness, spleen and stomach, see abdominal distension, loss of appetite, fatigue, fatigue, white greasy and thick tongue embolism, often used in combination with Magnolia, tangerine peel, etc .; treatment of cold and wet leucorrhea, can be used with Angelica dahurica

Although this product is a warm and dry product, it has strong dampness and dampness, and every heat-clearing product is evidenced by the treatment of damp heat. For example, wet and hot leucorrhea, it can also be equipped with Anemarrhena, Sophora flavescens, tomb head; Knee swelling and pain, weakness and weakness, can be used with cork, achyranthes, and yiren; wet temperature sickness can be used with gypsum and Zhimu. It is especially suitable for the severe pain of cold and dampness, and can be used in combination with Qiang Huo and Alone.

It is used to feel the headache, body pain and sweatless embolism of wind, cold and dampness. It is often used in the same way as Qiang Huo, Asarum and Wind Protection. It has obvious merits and is a medicine for treating night blindness. It can be used together with pig liver or sheep liver and Shi Juming. In addition, the smell of this product is fragrant, and it can rid the filth. The folks use Atractylodes and Baizhi to burn together indoors on the Dragon Boat Festival in the summer calendar to prevent epidemics. After close experiments, this method can indeed play a role in disinfection and sterilization.