细辛，别名：华细辛、盆草细辛，拉丁文名：Asarum sieboldii Miq. 马兜铃科、细辛属多年生草本；根状茎直立或横走，直径2-3毫米，节间长1-2厘米，有多条须根。叶通常2枚，叶片心形或卵状心形，先端渐尖或急尖，基部深心形，顶端圆形，叶面疏生短毛，脉上较密，叶背仅脉上被毛；雄蕊着生子房中部，花丝与花药近等长或稍长，药隔突出，短锥形；子房半下位或几近上位，球状，较短，柱头侧生。果近球状，直径约1.5厘米，棕黄色。花期4-5月。
Asarum sieboldii Miq. in Ann. Mus. Bot. Lugd. -Bat. 2: 134. 1865; Maxim. in Mel. Biol. 8: 397. 1871; Hemsl. in Journ. Linn. Soc. Bot. 26: 360. 1891: 中药志3: 108. 图78. 1961. ——Asiasarum sieboldii (Miq.) Maekawa in Nakai Fl. Sylv. Kor. 21: 22. 1936.
Asarum sieboldii Miq f. seoulense (Nakai) C. Y. Cheng et C. S. Yang in Journ. Arn. Arb. 64: 577. 1983. ——A. sieboldii Miq. var. seoulense Nakai in Fedde, Repert. Sp. Nov. 13: 267. 1914. et in Bot. Mag. Tokyo 28: 519. 1914;东北药用植物志54. 图60. 1959. ——Asiasarum heterotropoides Fr. Schmidt var. seoulense (Nakai) Maekawa. in Nakai Fl. Sylv. Kor. 21: 20. 1936.
北细辛全草含挥发油2.5%， 油中主要成分为甲基丁香酚、黄樟醚、细辛醚、榄香素，尚含优香芹酮、爱草醚、蒎烯、莰烯、桉油精、dl-去甲基衡州乌药碱（dl-demethylcoclaurine，hignamine）、辛味物质派立托胺和（2E，4E，8Z，10E）-N-异丁基-2， 4，8，10-十二碳四烯酰胺等．华细辛全草含挥发油2.6%，油中主要成分为α-侧柏烯（α-thujene）、月桂烯（myrcene）、γ-松油醇、榄香素， 尚含α-松油醇、黄樟醚、甲基丁香酚、肉豆蔻醚、芳樟醇、细辛醚、柠檬烯等．华细辛还含有正十五烷、谷甾醇、菜油甾醇、豆甾醇、芝麻脂素和N-异丁基十四碳四烯酰胺等．汉城细辛含挥发油1%，油中主要成分为优香芹酮， 另含α-或β-蒎烯、桉油精（1，8-cinede）、甲基丁香酚、黄樟醚、α-甲氧基黄樟醚、榄香素、细辛醚等。
This entry describes the species scientific name Asarum sieboldii Miq. In. Asarum, also refers to the taxonomy of all species referred to under "Asarum." About the latter, see "Asarum" entries.
Asarum, Alias: China Asarum, Asarum grass basin, Latin name:. Asarum sieboldii Miq Aristolochiaceae Asarum is a perennial herb; Rhizome erect or cross walk, 2-3 mm in diameter, internode length 1-2 cm, a number of fibrous roots. Leaves usually 2, blade heart-shaped heart-shaped or ovate, apex acuminate or acute, base deeply cordate, top round, sparsely dense foliage on short hairs, veins, dorsal vein only on the hair; stamens children room Central, filaments and anthers nearly as long or longer, anther prominent, short taper; ovary semi-inferior or near the upper, globular, short, stigmas lateral. Fruit nearly spherical, about 1.5 cm in diameter, brown. Flowering from April to May. 
Picture gallery from the Chinese plant 
Chinese scientific name fine Xin Lading Name Asarum sieboldii Miq. Aka Hua Asarum, Asarum basin grass, green shall ginger, uniflora, Yuxiang silk, Jinpen grass two law Asarum sieboldii community Flora door dicotyledonous Angiosperms Gang Plants Subclass original metachlamydeae outline aristolochiales families aristolochic Keya Ke Xin Yake fine family Asarum Asarum Belong subgenus subgenus Asarumforbesii
Contents 1 Basic morphological traits ▪ ▪ microscopic characteristics Growth habit 2 3 4 Geographical distribution of taxonomic species under 6 5 7 reproduction cultivation techniques cultivation methods ▪ ▪ field management ▪ pest control ▪ 8 main value of medicinal value ▪ quality requirements ▪ Economic Value
Basic Traits Edit
Perennial herbs; Rhizome erect or cross walk, diameter 2 ~ 3mm, section length between 1 ~ 2cm, a number of fibrous roots.
Leaves usually 2, blade heart-shaped heart-shaped or ovate, long 4 ~ 11cm, width of 4.5 ~ 13.5cm, apex acuminate or acute, base deeply cordate, lobes on both sides of a long 1.5 ~ 4cm, width 2 ~ 5.5cm top round, foliage sparsely haired, more dense veins, dorsal veins coat only; petiole length 8 ~ 18cm, glabrous; buds husk kidney round, each about the length and width of 13mm, edge sparsely pubescent.
Purple flowers; pedicels 2 ~ 4cm; floral tube bell-shaped, diameter 1 ~ 1.5cm, the inner walls have alienated longitudinal ridges wrinkled; perianth lobes triangular-shaped oval, about 7mm, a width of 10mm, erect or nearly flat ; stamens children room Central, filaments and anthers nearly as long or longer, anther prominent, short taper; ovary semi-inferior or near the upper, spherical, style short, the top 2-lobed stigma lateral.
Fruit nearly spherical, diameter of about 1.5cm, brown. Flowering 4 to 5 months. 
Rhizome irregular cylindrical, with short branches, long 1 ~ 20cm, diameter of 1 ~ 4mm; gray-brown surface, an annular section, section length between 1 ~ 10mm; elongate, the dense section, length 5 ~ 20cm, diameter of about 1mm. Surface greyish yellow with thin rootlets; root brittle, easily broken, section smooth, yellow-white or white. The air is fragrant and intense, spicy, Ma tongue.
(1) an epidermal cells, the remaining part. (2) cortical large, there are many scattered oil cells; an outer cortical cells, the class rectangle, cork; within the cortex obvious, visible Kjeldahl points. Cortical parenchyma cells containing starch grains. (3) secondary tissue developed, primary xylem 2-4 prototypes.
North Asarum (root) cross-section detail
North Asarum (root) cross-section detail
Powder: yellowish gray, with a rich aroma, spicy, bitter, have a more lasting sense of Ma tongue.
(1) The outer cortical cell class rectangle or polygon, fine wavy anticlinal walls curved. (2) Oil cells round, thin wall, cork, cell cavity often visible greenish-yellow oil. (3) class roots epidermal cells rectangular or triangular class long anticlinal walls Pente-like thickening, epidermal cells visible oil. (4) cells were class roots stone square or rectangular type. (5) the main conduit for the reticulate, ladder pattern.
China Plant Image Library (Institute of Botany) provide and co-edited
Asarum roots (1)
Asarum foliage (1)
Asarum fruit (2)
Growth habit editor
1200-2100 Millington was born in elevation in the next damp humus.
Geographical Distribution Edit
North Asarum, Asarum Seoul Xi said Liao Asarum; Hua said Asarum Asarum.
North Asarum is mainly produced in the northeast, sold nationwide and exported; Seoul Asarum is mainly produced in Jilin, Liaoning, production is small; Asarum is mainly produced in China, Shaanxi, Sichuan, Hubei; Anhui, Jiangxi, Zhejiang and other places are also produced, more homegrown.
Northeast producers usually high quality, Hua Asarum Huayin, Shaanxi Province produced a plus.
Japan and North Korea have.
The type specimen was collected from Japan. 
Asarum, Alias: China Asarum, Asarum grass basin, Latin name: Asarum sieboldii Miq .. angiosperm; Dicotyledon; aristolochiales; Aristolochiaceae; Asarum; Asarum. 
Under the kind of editor
Asarum (Ben Cao Jing) Chinese Asarum (literature known), sarmentosum Asarum (Sichuan)
Asarum - Plant Shape
Asarum - Plant Shape
...... Asarum sieboldii Miq in Ann Mus Bot Lugd -Bat 2: 134. 1865; Maxim in Mel Biol 8: 397. 1871; Hemsl in Journ Linn Soc Bot 26:... 360...... 1891: Herbal Chi 3: 108. Figure 78. 1961. --Asiasarum sieboldii (. Miq) Maekawa in Nakai Fl Sylv Kor 21:. 22. 1936. 
Asarum (original variant)
Asarum sieboldii Miq. F. Sieboldii. 
Seoul Asarum (variant)
. Asarum sieboldii Miq f seoulense (Nakai) CY Cheng et CS Yang in Journ Arn Arb 64:...... 577. 1983. --A sieboldii Miq var seoulense Nakai in Fedde, Repert Sp Nov. 13:.. 267 . 1914. et in Bot Mag Tokyo 28:..... 519. 1914; northeast medicinal flora 54. Figure 60. 1959. --Asiasarum heterotropoides Fr. Schmidt var seoulense (Nakai) Maekawa in Nakai Fl Sylv Kor. 21: 20.1936.
Leaves the back of this variant have dense undercoat, petioles sparsely hairy.
Southeastern Liaoning. In forests and valley wetlands. North Korea also have distribution. The type specimen was collected from Seoul Korea.
This species is the whole plant medicine. 
Seed multiplication and sub-sub-root propagation in two ways.
Seeding is the main method development Asarum cultivation, 4 to 5 years can be harvested. Asarum seed generally mature in June, when the fruit turns pink and the purple, pinching the soft flesh that can be picked when ripe silt-like form. Asarum seed is not a mature stage, during the fruit picking, to be taken to the ground once or twice a day, in the shade of fruit picked from 1 to 2 days, until softened peel into powder, then rub to peel, water The seeds were washed out, dry it, you can take advantage of fresh sand sowing. To see that is cooked mining, nor even bad day, otherwise the seeds easy to fall off or eaten by ants. After harvest, peeled, seeded generally immediately, or easily lose germination ability. According to tests just picked seed germination rate of 96%; at 17 ~ 20 ℃ dry place at room temperature for 20 days, the germination rate of 81%; dry place 40 days was 29%; dry place 60 days only 2%.
Leveling sowing Qimian (seeding bed), 10cm wide row spacing, sowing rate 3 ~ 5cm implement drilling, will sow the seeds evenly mixed with 5 to 10 times the fine sand, the average distance between species 1 ~ 1.5cm, every row planting 120 to 150 (equivalent to net seed 5 ~ 6g / m2), the available prefabricated sow sowing box control in order to improve seeding efficiency. After sieve and then sprinkle sifted humus cover 1 ~ 1.5cm, requires uniform thickness. Then stretch the cover layer litter, keep the soil moist. The following spring emergence Qianjie addition to covering, in order to facilitate emergence. If the initial conduct Asarum planted in 6 to 7 months, looking for then provenance seeds. After such seed is unable to timely sowing, the seeds can be fresh mix of 5 to 10 times the clean wet sand, wet sand at low temperature storage, during the Tibetan sand often flip and moisturizing, 1 to 2 months after the germination rate is still up 90%, using this method can be transported over long distances. When grin radicle will be immediately removed seeding, although this can be extended sowing, but depending on the specific circumstances of flexibility, the latest not later than the end of July, as the party influence over the current year and the following year the hair root emergence. Asarum seeds between June and July after sowing, the soil down to the hair root, until the end of autumn, the root can grow to 6 ~ 10cm, while the hypocotyl subject overwintering process, in the second year of growth in the spring before emergence ʱ?? Asarum small seed, seedling top soil is weak, and thus can Dibble, the furrow spacing 15 ~ 20cm by the end of Kaiping shallow hole, deep 3cm, 5 to 10 per hole sowing, casing 1 ~ 1.5cm, above and then cover a Layer half the maturity of the leaves. 
Seedling transplanting: seedling transplanting mainly in the case of using less seed, such as seeding Lot encounter other unexpected disaster or flood water can also be transplanted remedy. Methods and live basically the same, in addition to increase drilling density, but also for sowing, seeding rate of 15g / m2. And then incubated for 2 to 3 years after transplanting. Spring and autumn can be transplanted, and to fall as well, Qiuzai ground after leaf withered, has formed a plump wintering buds, then planting generally do not need watering. Spring before bud sprout teeth, autumn leaf fade after the election Miao Zhuang root complete pest-free seedlings, spacing 10cm × about 15cm. Fibrous roots before planting appropriate cut, leaving 7 ~ 10cm long can be, when planted fibrous roots stretch to one side, bud slightly raised. Can also be planted clump, clump spacing around each 18cm × 20cm, among a clump of seedlings can be planted 3 to 4, when Zaimiao bud left, slightly raised, fan-shaped roots stretch, in the case of soil drought, transplanting to be watered after planting until the water seepage under a thin layer of soil and then cover between rows can be covered with a layer after transplanting Qimian litter, as soil moisture, prevent soil compaction and rain erosion. Also laterally opener on Qimian sit hydroponic, seedlings should not be too large, two-year seedlings as well, there is a true leaves, the root is not too long, easy to transplant, the roots stretch to one side when planted, casing half, watering until the water seepage under, and then the casing to the horizon, and covered litter fall
Points root breeding
Ramets and rhizomes propagation using two methods.
Division propagation: ramet should be in the summer, according to the number Asarum buds will be divided into plant, each plant needs to have 1 to 2 buds, leaving roots 5 ~ 6cm, slightly fibrous and two blades. Then press the spacing of 10cm × 15cm trenching or digging transplanting, fibrous roots to stretch after transplanting cover with fine soil 5 ~ 6cm, compacted and timely watering moisture. 
Rhizome propagation: Asarum underground rhizomes grow wild, Section obvious. Dug during the autumn harvest roots, choose robust growth, pest-free stout rhizomes, cut into small pieces of 5 to 6cm, and each needs with 2 to 3 buds and fibrous length of 10 to 20 to carry out a root reproduction. Ditching 15cm row spacing, spacing 10cm section by section buried in the trench, and cover with fine soil thickness 5cm, when the case of drought, the need for timely watering. 
Cultivation Technical Editor
Moist soil Asarum likes the cold weather and damp environment, many born understory shade damp at the ravine in thick humus
Hi soil loose, fertile loam or sandy loam. Without shade, dry, heavy clay soil and low-lying land should not be planted Asarum water. When the plant cold fear heat, fear of light, grows well in shade conditions, the temperature is higher than 35 ℃, leaf wilt.
Asarum Flowering in May, fruiting in June, underground rhizomes wintering buds formed after September. Asarum plant is early spring, top Ling unearthed, both flowering and fruiting earlier, in mid-June to September on growing plants above ground and underground buds after fruit update period, autumn shoots wither into dormancy. Asarum winter temperature capability -40 ℃ below. 
The use of direct seeding and transplanting seedlings in two ways. Asarum especially cultivated in the forest, cropland neither accounting nor deforestation, provincial labor and materials in favor of the growth of trees. General planting can be harvested after three years, to be received by each 1m2 dry 1.5 ~ 2.5kg. If the five-year harvest, the highest yield up to 6.5kg.
Asarum happy with humus-rich, well-drained loam or sandy loam, with mountain and forest humus brown soil for the better. Cultivation Asarum should choose the flat edge of the forest broad-leaved forest, glade, mountain streams on both sides of the foot newly cultivated land, old ginseng or farmland. To deep soil, soil to loose, fertile, moist. Mountain slope should be at 15 ° or less, in order to facilitate soil and water conservation, pH value of 5.5 to 7.5 is appropriate. Farmland before with beans and corn better.
Asarum cultivated woodland or forest edge, Kovar out in the spring small or too dense shrub branches, holding about 50 percent light transmittance. After the election to plowing, plowing depth of about 20cm, after pulverizer picked roots, weeds, rocks, bed surface should be smooth. Tillage was applied to basal binding, generally every 1m2 into the decomposition of pig, deer manure or litter 8 ~ 10kg, SSP 0.25kg. Shunshan oblique Zuoqi, Qikuan 120cm, Kwai high 15 ~ 20cm, depending on the terrain and the long stretch, the general length 10 ~ 15cm, job channel width 50 ~ 80cm, north south strike was possible.
Live seed breeding, propagation coefficient, reduce morbidity, but slow growth, long life, takes 3 to 4 years to harvest medicine. In the case of sufficient seed sources, using live is the best way. Sowing fresh seeds usually in July, the middle, at the latest not more than early August. Fresh seeds with 25% carbendazim 1000 times soaking 2h, can prevent Asarum Sclerotinia; with 50% mancozeb 1000 times soaking 1h, Asarum can prevent blight. Sand seeds must also be aired in early August, otherwise after sowing the seeds take root gap, neither they sow, is not conducive to hair roots. Sow sowing methods, drilling two kinds.
In the bed surface 3 ~ 5cm deep dug shallow groove, with fine sifted humus pave the bottom, then the seeds Hunban 5 to 10 times the fine sand or humus, evenly sow. The seed spacing 3cm, after sowing using finely sifted humus cover, thickness 0.5 ~ 1cm. After casing the bed surface is then covered with a layer of leaves or straw, to keep the soil moisture, prevent bed panel junctions and rain erosion. In the spring before the emergence of the second cover removed to facilitate the emergence of fresh seed dosage 120 ~ 150g / m2.
In the whole a good bed surface transverse bed trenching, line spacing 10cm, groove width 5 ~ 6cm, Goushen 3 ~ 5cm, ditch leveling and slightly compacted, and then in a wide trench sowing. Seed spacing 2cm, the casing 0.5 ~ 1cm, covering leaves or grass moisture. In the spring before the emergence of the second cover is removed, fresh seeds with about 100g / m2.
Miao Tian Management
When planting in drought timely watering, keep the bed moist. 2nd year spring thaw Chuangtu timely withdrawal when covering about emergence, in order to improve the bed temperature, promote early emergence. Timely removal of weeds, dug ditches during the rainy season to prevent the water in field. Forests or forest planting, thinning may be appropriate to the whole canopy. The use of wasteland, ginseng cultivation can be scaffolding shade, also planted corn, sunflower and other crops used to adjust the light shade. Usually 1, 2-year-old anti-light is weak, canopy density of 0.6 to 0.7; 3, 4-year-old anti-light force enhancement, canopy density 0.4 is appropriate. From the third year onwards, each combined with winter cover should be dressing 1, in bed dressing maturity of pig manure composting between deciduous forest deer manure or superphosphate mix, about 1cm thickness, each approximately 1m2 pig manure, deer manure SSP 10kg and 0.1kg.
Asarum perennials, long growth cycle, after the general forest planted between 6-8 years to bear fruit a lot. To take advantage of the wild seedlings, expand the area of nutrition, most places have adopted seedling transplanting way, that is, first planting seedlings for three years, and then a long lifter transplant three years. Site preparation and transplanting election broadcast requirements similar method of transplanting seedlings from different sources with slightly different points transplanting seedlings seeds, rhizomes apex transplanting.
Seed seedling transplanting method
Autumn and spring can be carried out. Fall transplanting, dig every year since October 2, 3 years old of Asarum seedlings, large, medium, small 3 categories were planted. When planting a cross bed trenching, line spacing 15cm, Goushen 9 ~ 10cm, the trench by 8 ~ 10cm spacing put seedlings, make fibrous roots stretch, casing 3 ~ 5cm. Spring transplanting should be carried out before the spores did not sprout. If the transplant is too late, in the emergence or Asarum leaf, requiring a lot of water, and take a long time Huanmiao Asarum will affect growth and development.
Rhizome apex transplanting method
Asarum roots after planting division can survive independently, develop into a new individual. Section between the top of the rhizome is short, it was cut into 1cm long short planting. Dividing rhizomes and roots on the survival rate, middle and lower parts, segment length, buds presence and latency is closely related to the size and planting time. Usually stems have winter buds large latent buds, roots or rhizomes survival segment segment length of high survival rate Qiuzai higher than the summer planting. Hydroponics with the former.
The first two years after planting, after the early spring snow, it will cover leaves or grass hug the outer fields.
Lot 5 moonrise postemergence transplanting year, to be 3 to 4 times tillage weeding, improving Chuangtu temperature, water retention points, good for prevent Sclerotinia, promote growth. To some deep tillage between rows (about 3cm), rhizosphere to shallow (about 2cm), the exposed root without performing earth. Asarum afraid acetochlor, butachlor. 
Fertilization and irrigation
During the growth of general fertilizer twice a year, the first time in May, the mid-performed the second time in mid-September to late carried out with ammonium sulfate or too rock for each 5 ~ 7.5kg / 667m2, more than the line between open topdressing ditch. Fall in most regions think the bed pig manure (5kg / m2) Hunban superphosphate (0.1kg / m2) best; some Yaonong fall in the bed surface dressing 1 ~ 2cm thick composting leaves, both fertilizer and insurance soil water retention, a protective effect of winter. Every year when spring drought, irrigation should be between the lines, to keep moist.
Qing Lin dimming
Forest or forest edge to regularly clean planting forests, prevent the branches too close. For farmland cultivation, should regulate the erection of shed light shade, canopy density and seeding the same.
Whether live or breeding transplanting thawed required before 1cm thick leaves with or without seeds of thatched bed, until the next spring before bud removed.
Asarum Asarum transplanted field is Sclerotinia main disease, occurs in transplanted plots for years, causing the whole plant rot, by seed, soil-borne, the incidence of the condition is mainly low temperature, soil moisture is too large or harden , severe death into a film. The main disease is the blight broadcast fields.
Control methods: to strengthen field management, appropriate strengthening air and light; timely tillage, keeping soil aeration is good; more phosphate and potassium fertilizer, the plants robust growth, enhance resistance to disease; found diseased plants should be thoroughly cleaned with 5% lime Ward milk and other treatment. Chemical control Sclerotinia available 50% + 50% carbendazim 200 times 800 times Zineb IRRIGATING good effect, preferably before wither before autumn or spring germination. Ward severe 1% copper sulfate solution available sterilization; blight with 150 times more effective antibiotics.
Asarum pests are cutworm, black caterpillars, grasshoppers, butterflies and other Asarum. Black caterpillars, grasshoppers, butterflies Asarum chomping blades, vanes most serious being eaten. Cutworms heaviest damage, bite shoots, cut off the petiole and rhizome.
Control methods: per 667m2 with 1 ~ 1.5kg2.5% trichlorfon powder applicator can also be used trichlorfon 1000 times liquid spray.
The main value edit
This species is the whole plant medicine
Relieving cold, chills and pain, Tongqiao, drink warm the lung. For the cold cold, headache, toothache, nasal congestion, runny nose, allergic rhinitis, Biyuan, rheumatism, cough phlegm.
Asarum as a medicinal plant, only contained in the Qin and Han "Shen Nong's Herbal Classic", "Shen Nong's Herbal Classic" will be listed as the top grade. Liao Asarum root thin, sallow color, leaf color green, spicy taste Ma tongue. And warm, a small drug. Heart, lung, kidney. There expelling wind, cold, warm the lung, the role of the water line, resuscitation. Governance cold headache, Biyuan, tooth pain, phlegm, Keni, rheumatism. In addition, Asarum also has anti-inflammatory immune,
Local anesthesia, increase metabolism, anti-bacterial effect, can be used for patients with cancer of white blood cells caused by chemotherapy and radiotherapy reduced.
Tropism of taste
Acrid, warm. Heart, lung, kidney.
Collect and process
Fruit ripening summer or early autumn excavation, removal of impurities, spray water, a little run, cut into sections, dried.
This product was irregular segments. Rhizome irregular round, gray-brown outer skin, sometimes visible section annular.
Root thin, surface greyish yellow, smooth or with longitudinal wrinkles. Section yellow-white or white. Gas spicy, spicy taste, Ma tongue.
Color sallow root, leaf green, dry, air spices, spicy Ma tongue who chew better.
North Asarum whole plant contains 2.5% of volatile oil, oil the main component of methyl eugenol, sassafras ether, asarone, Lam Hong Su, still with excellent carvone, love grass ether, pinene, camphene, eucalyptol , dl- demethylation Hampshire aggregata base (dl-demethylcoclaurine, hignamine), pungent substance faction care legislation amine and (2E, 4E, 8Z, 10E) -N- isobutyl -2, 4,8,10- dodecene tetraene amide. China Asarum whole plant contains volatile oil 2.6%, oil is the main ingredient α- arborvitae ene (α-thujene), myrcene (myrcene), γ- terpineol, Lam Hong Su, still containing α- terpineol, sassafras ether, methyl eugenol, nutmeg ether, linalool, asarone, limonene. Hua Asarum also contains n-pentadecane, sitosterol, campesterol, stigmasterol, sesame lignans and N- isobutyl tetradecatetraene amide. Seoul Asarum volatile oil containing 1%, oil the main ingredient for the gifted carvone, the other containing α- or β- pinene, eucalyptol (1,8-cinede), methyl eugenol, sassafras ether, α- methoxy group sassafras ether, Lam Hong Su,
Asarum ether. 
(1) root cross-section: an epidermal cells, some remnants. Cortical width, there are many scattered oil cells; an outer cortical cells, class rectangle, cork and micro-wood; within the cortex obvious, visible Kjeldahl points. Pericycle cell 1 to layer 2, primary xylem 2-4 prototypes. Phloem visible central beam 1 to 3 was significantly higher than the surrounding phloem parenchyma cells in large cells, but its long diameter was significantly smaller than the maximum diameter of the catheter, or phloem no obvious large thin-walled cells. Thin-walled cells containing starch grains.
(2) to take this product powder 0.5g, add methanol 20ml, ultrasonic treatment for 45 minutes, filtered and the filtrate evaporated and the residue in methanol 2ml dissolve, as the test solution, the other to take Asarum control medicine 0.5g, with the legal system as the reference drug solution. Then take Asarum Lignans reference substance, add methanol produced per 1ml solution containing 1mg, as the reference solution. Thin layer chromatography (Appendix Ⅵ B) test, to learn of the three solutions 10μl, respectively, the same silica gel G plate with petroleum ether (60 ~ 90 ℃) - ethyl acetate (3: 1) the agent, started out, dried, sprayed with 1% vanillin sulfuric acid solution, the hot air to spot the color clear. Test products for chromatography, chromatography with the reference drug and the corresponding reference standard chromatographic position was the same color spots.
Antipyretic and analgesic effects;
Effects on cardiovascular system: Asarum volatile oil can significantly increase the guinea pig heart coronary flow; and can lower blood pressure, while decoction can boost;
Effects on the respiratory system: Asarum volatile oil of histamine or acetylcholine-induced spasm of airway smooth muscle relaxation has a very significant role, and its anti-histamine effect stronger than the anti-acetylcholine.
With a comfortable and easy Tongqiao pain, drink warm the lung effect.
1. sedative and analgesic effects Asarum volatile oil obviously central inhibition, small doses can make animal quiet, tame, reduce locomotor activity; high-dose animals can sleep, and have significant anticonvulsant effect. Asarum decoction gavage have analgesic effect. Important Pharmacological Basis of treatment of head and body pain, toothache, etc. for its strong analgesic effect.
2. antipyretic effect Asarum volatile oil gavage for a variety of reasons, such as warm needling, tetrahydro-β- naphthylamine, typhoid, paratyphoid mixed vaccine caused fever rabbits have significant antipyretic effect on beer yeast induced fever in rats have significant antipyretic effect. But also reduce the body temperature normal rats.
3. The anti-inflammatory, immunosuppressive and anti-allergic Asarum volatile oil gavage or injection have significant anti-inflammatory effects. Joint swelling in rats induced by inflammatory agents such as Asarum on carrageenan, yeast, egg white, formaldehyde caused significantly inhibited, and to fight against the croton oil-induced ear edema in mice, inhibition caused large antiserum Rat skin edema, increased capillary permeability and inhibition of the histamine-induced plastic ring and a cotton ball granulation. To go to the adrenal gland in rats, there is still anti-inflammatory effect.
Asarum active ingredient methyl eugenol, N- isobutyl dodecyl four acrylamide and higenamine could significantly inhibit histamine induced murine vein contraction of isolated ileum. Asarum water or alcohol extract all make immediate type hypersensitivity allergy mediators total emission reduction of more than 40%, indicating that they have anti-allergic effect.
4. Increase the body's metabolic function isolated from Asarum racemic higenamine having β- agonist-like pharmacological effects of widespread, it has a strong heart, dilation of blood vessels, smooth muscle relaxation, enhanced and elevated lipid metabolism blood sugar and so on. Now known higenamine contained within a variety of warm herbal medicine, such as Asarum, aconite, Evodia, etc., which exhibits pharmacological effects and efficacy of traditional Chinese medicine cold or dispelling the match, it can be regarded as loose One of the important material basis for the efficacy of cold.
5. asthma, expectorant Asarum can relax the bronchial smooth muscle and showed asthma. In vitro experiments show that, Asarum volatile oil of bronchospasm caused by histamine and acetylcholine has obvious antagonism; its volatile oil ingredient methyl eugenol on rat tracheal vein there is an apparent relaxation effect. Asarone also have some asthma, expectorant effect. In addition, the alcohol infusion intravenous morphine can fight respiratory inhibition.
6. strong heart, myocardial ischemia, or high blood pressure effect Asarum has a strong heart, myocardial ischemia and lift effect of hypertension. In vitro experiments showed that the volatile oil of Asarum rabbit, rat cardiac veins obvious excitement, manifested as positive inotropic, positive-frequency effect, and can increase coronary blood flow. Canine experimental cardiogenic shock, Asarum can improve their mean arterial pressure, left ventricular pressure and coronary sinus peak flow and other effects, and its intensity and dopamine similar, but it does not speed up the heart rate.
Asarum volatile oil to anesthetized dogs, cats intravenous injection, visible antihypertensive effect, but there are significant boost its decoction effect, its effect may be related boost higenamine related.
7. antibacterial, antiviral fine octanol infusion, volatile oil against Gram-positive bacteria, Bacillus subtilis, and Salmonella typhi have certain in vitro inhibition decoction of Mycobacterium tuberculosis and typhoid bacilli also inhibited. Asarum volatile oil for a variety of fungi such as Aspergillus flavus, Aspergillus niger, Candida albicans was inhibited, the antimicrobial active ingredient is sassafras ether. α- asarone inhibit respiratory syncytial virus proliferation.
8. The local anesthesia can block 50% of Asarum decoction toad sciatic nerve impulse conduction, the role reversible.
Its anesthetic effect and 1% procaine close. Volatile oil surface anesthesia, infiltration anesthesia. 50% Asarum tincture applied human tongue have local anesthetic effect. 
Qi and sweating, headache, blood deficiency, Yin cough Jifu, anti-veratridine.
"Ben Cao Jing Shu": Where the disease on the fire heat and raw inflammation, Morishita virtual, Qi sweat, blood deficiency headache, Yin cough, France are disabled.
"Was equipped with Materia Medica": wind-heat Yin disabled.
"Herbal mention": Asarum, if used alone at the end, can not be more than half the money dagger, namely multi-tightness plug, nowhere to die.
"Treatise on the Notes": heart and not stop at the water, then dry kidney. 
Toxic ingredients: sassafras ether.
① Asarum have a certain toxicity to the kidneys and kidney dysfunction should be used with caution.
② Asarum daily dosage of more than 20g → lips, tongue, toe finger tingling sensation can be restored after treatment.
Check aristolochic acid
Chromatographic conditions and system suitability test octadecylsilane bonded silica as a filler; acetonitrile as mobile phase A, with 0.05% phosphoric acid as mobile phase B, as specified in the following table gradient elution; detection wavelength to 260nm. Number of theoretical plates of aristolochic acid I peak should not be less than 5000.
Mobile phase A (%)
Mobile phase B (%)
0 ~ 10
10 to 18
18 to 20
20 to 30
30 to 31
31 to 35
35 to 40
30 → 34
34 → 35
35 → 45
45 → 53
53 → 100
70 → 66
66 → 65
65 → 55
55 → 47
47 → 0
Preparation of the reference solution to take aristolochic acid I reference standard amount, accurately weighed, add methanol produced per 1ml solution containing 0.2μg, that is, too.
Preparation of the test solution to take this product in powder of about 0.5g, accurately weighed, set stoppered Erlenmeyer flask, precision by adding 70% methanol 25ml, Mesa, said that given the weight, ultrasound treatment (power 500W, frequency 40kHz) 40 minutes, let cool, then weighed and the weight, with 70% methanol to complement the weight loss, shaking, filtration, the filtrate, that is, too.
Determination of Precision learn from each 10μl of the test solution and reference solution for, into the liquid chromatograph to measure, that is, too.
This product calculated on dry goods, containing aristolochic acid I (C17H11O7N) not more than 0.001%.
Asarum can be obtained by steam distillation of essential oils, cosmetics, pharmaceutical and other industries for many purposes. Liao Asarum extract
As an additive raw material, widely used in household products such as soap, cosmetics, toothpaste, etc., with anti-bacterial, anti-inflammatory, bleeding, pain and other effects. Containing veterinary drug used to treat cough Asarum asthma, constipation; Asarum make pesticide-containing insecticides and fungicides; the Asarum volatile oil contained in a special aroma, abroad as a building material has been developed using Asarum moth insecticide-treated mosquito packing and materials.
Atlas Atlas more
Entry pictures (18)
Asarum roots (1)
Asarum foliage (1)
Asarum fruit (2)
Hua Asarum (5)
Hua Asarum (5)
Asarum Featured Photos
Asarum Featured Pictures (9)
Pharmacy · Related Tech Terms
Medicinal herbs ▪ ▪ ▪ ▪ fresh authentic ingredients medicine ▪ natural medicine
▪ ▪ collect and harvest production processing ▪ ▪ ▪ wither period of germination
▪ Storage ▪ drying ▪ dry season ▪ ▪ drying
Moth mildew ▪ ▪ ▪ ▪ swap ▪ weeping original plant identification
▪ original animal identification ▪ original mineral identification based source identification ▪ ▪ ▪ rhizome root
Leaves skin ▪ ▪ ▪ ▪ Fruit ▪ flower seeds
Characters Description whole plant ▪ ▪ ▪ ▪ ▪ the size of the surface characteristics of shape
Color and texture ▪ ▪ ▪ ▪ section fracture surface features ▪ chrysanthemum heart
Fine Xinya genus
▪ tail flower kidney Asarum Asarum ▪ ▪ ▪ double Asarum Asarum hairy
Short tube group
▪ ▪ tailed coins Asarum Asarum Asarum Taiwan ▪ ▪ ▪ spend a single leaf Asarum Asarum
Du Heng subgenus
Hua Asarum group
▪ ▪ Sakhalin Asarum Asarum
Du Heng Group
Kawakita Asarum Asarum Fujian ▪ ▪ ▪ ▪ wrinkled leaflets Saruma spend Asarum Asarum ▪ Chuandian
Du Heng ▪ ▪ ▪ under purple lanterns Asarum Asarum ▪ ▪ long stems gold earrings gold earrings
▪ ▪ large flower Asarum Asarum Asarum nanchuan ▪ ▪ ▪ indica Spirodela Asarum
Asarum Asarum splendens ▪ ▪ ▪ Five Ridges in Datun Asarum
Long flower group
▪ ▪ short column of white Asarum Asarum Asarum taro ▪ ▪ ▪ Qiyang under flower Asarum Asarum
▪ ▪ Nanchangosaurus Asarum red gold earrings
Above species are distributed in China
1. Asarum. Flora of China [reference date 2015-01-15]
2. Asarum. China Plant Gallery [reference date 2015-01-15]
3. "Febrile Diseases" in prescription compatibility Asarum Probe. Sina [reference date 2013-12-6]
4. Asarum sieboldii. asianflora [reference date 2013-12-6]
5. Shao Chun Ye, Yan Shiping. Asarum cultivation techniques. INVESTIGATION DESIGN, 2012, (01).
6. Zhang Weidong, Chen Wansheng, Kongde Yun, Lihui Ting, Wang Yonghong, Yang a gold study Chinese medicine Erigeron chemical constituents (Ⅰ). Second Military Medical University, 2000, (02).
7. Asarum. Medical Encyclopedia [reference date 2013-12-22]
Word Tags: nature, plants, Dicotyledoneae