Patchouli (Pogostemon cablin) is labiatae plants, perennial herbaceous plants erect, has a fragrance. Native to the Philippines, southeast Asia around the cultivation is more, in southern China has a large number of cultivation. All grass contain volatile oil, can be used as a strong stimulus medicine and aromatic material, is a common ingredient of perfume. Herbs of patchouli is also called the thorn grass, ageratum, is the ground part of pogostemon cablin stems cane. Sexual flavour to the: simba, lukewarm. Return to the spleen, stomach, lung. Efficacy: wet, has soared, anti-nausea. The medicinal value of "Chinese pharmacopoeia" attached to the party.

【 origin 】 the goods for drying the ground part of patchouli. According to the different points of origin ling patchouli and patchouli in hainan. Cutting in wide spreading, sun night frowsty, repeated to do. Ling patchouli: a thin branches, the surface is shrinking, yellowish gray or gray-brown, internode 3 ~ 7 cm long, large leaf scar and bulge, below the cork, central longitudinal wrinkle is deeper, the section at class round, the marrow is smaller. Leaves smaller and thicker, dark green, brown or gray brown. Patchouli: hainan branch brawnier, the surface is smooth, gray brown to purple brown, internode 5 ~ 13 cm long, small leaf scar, no obvious bulge, lower branches near beginning of cork, longitudinal wrinkle, fracture being dull square. Leaf blade large, thin, JianZong brown or yellow brown. 

【identify】(1) the goods leaves light brown powder. Leaf epidermal cells irregular [5], stomatal direct axis type. 1 ~ 6 cells not glandular hairs, flat or apex bend, about 590 microns long, wall with a protrusion, some cell containing yellow brown. Gland scale unicellular head shape, top view and window or seam cracking, 37-70 microns in diameter; A unicellular, very short. Clearance of glandular hairs to exist in the palisade tissue and parenchyma in the intercellular space, single head, irregular cystic, 13 ~ 50 microns in diameter, about 113 microns long; A short, single cell. Small gland feather department 2 cells; 1 ~ 3 cells, very short. Calcium oxalate crystal needle small, scattered in mesophyll cells, the long mu to 27 m. (2) the right amount of this product meal, according to the essential measurement (appendix Ⅹ D) divide the volatile oil, the following tests are carried out. Drops essential oil 1, plus the chloroform 0.5 ml, add 5% of smelly chloroform solution drops. Ling patchouli to fade, the green color; Hainan patchouli to fade, the purple. The other drops essential oil 1, plus the benzene 0.5 ml, add a small amount of 5% copper acetate solution, mix, placed stratification, drain upper benzene liquid, points on the slide, benzene volatile after the application on the residue with ethanol is 1 ~ 2 drops, placed after the microscope. Ling patchouli visible many grey blue needle crystal; Hainan patchouli a small grey blue crystalline and amorphous green thing. 

【Cooked】 to remove the root and impurities , the first under the leaves shaking sieve net and put them ; stems washed, run through , cut and dried , and then mixed with the leaves .

【Taste】Sim, tepid.

【 Meridian】 spleen, stomach , lung.

【Indications】Aromatization turbidity, appetizing anti-nausea, published has soared. Used in the wet muddy, often new vomiting, wet heat tired, chest tightness is not comfortable, cold dampness heat closed, abdominal pain in children, nose deep headache. 

【Usage】3 ~ 9 grams.

【Storage】Cool and dry place, moisture.

【Remark】(1) for wet coke resistance, abdominal symptoms of nausea, poor appetite, often associated with the clinical Perrin equated with. The starting temperature for the wet, can be equipped with mint, wormwood, skullcap equated with. To feel dirty cloud, vomiting, diarrhea disease, can be equipped with sage, Breit, Magnolia, Citrus equated with. For the stomach, vomiting of the disease, can be equipped with the use of Pinellia; such as hot and humid, can be equipped with silence, Zhuru; spleen and stomach, can be equipped with Codonopsis, licorice; vomiting of pregnancy, can be equipped with the use of Amomum. Shushi its governance of the disease, regardless of the cold side, partial heat, can be applied, often with Perrin clinical compatibility with the use. Dampness for both exogenous cold coke symptom, often compatibility basil, dried tangerine peel equated with. Also, can cure Biyuan, often with pig bile equated with.