Name: Alisma orientalis English name: water plain, alias: Shui Ze, swan egg, one flower, Ruyi family: Alisma orientalis: Alisma orientalis is distributed in Heilongjiang, Jilin, Liaoning, Inner Mongolia, Hebei, Shanxi, Shaanxi, Xinjiang, Yunnan and other places. It is distributed in the former Soviet Union, Japan, Europe, North America and Oceania. Morphological characteristics There are usually many leaves. Submerged leaves are strip-shaped or lanceolate; Primary leaves are broadly lanceolate, elliptic to ovate. The height of rosette is 78- 100cm, or higher; Inflorescence length is 15-50 cm. Perennial herb, up to 100 cm, with spherical or oval underground stems and dense fibrous roots. Single leaf, several single bases, ovate leaf, with 5 ~ 7 obvious arc veins. Flowers grow from leaves, which are large whorled panicles with small pedicels of different lengths. The fruits are arranged in a ring shape, flat, obovate and brown. This species is a poisonous plant included in China Botanical Atlas Database, and its toxicity is the whole plant, especially the underground tuber. Stems and leaves contain poisonous juice, and the skin of livestock can be itchy, red and blistered when touched; Symptoms such as abdominal pain and diarrhea after eating can also lead to paralysis. The TLD50 of a new substance in Alisma orientalis extract was 780 mg/kg for intravenous injection and1270 mg/kg for intraperitoneal injection in mice. Growth habits are born in shallow waters of lakes, bends, streams and ponds, and also grow in swamps, ditches and low-lying wetlands. Alisma orientalis is an aquatic plant, which likes to grow in warm areas, is resistant to high humidity and cold, and the soil is fertile and slightly sticky. It likes shade at seedling stage and sunshine after transplanting. Generally planted in paddy fields or mud fields, the previous crops were mostly early rice. Garden use is used to decorate waterscape in shallow water area of garden swamp, and the overall ornamental effect is very good. In the waterscape, you can see leaves and flowers. Reproductive cultivation mostly adopts sexual reproduction. First, the seeds are disinfected. Sow in March-April or August-September. Asexual reproduction is root reproduction. 3. In April, the underground stems are dug out and cleaned, the adventitious roots are removed, and then cut into blocks, and each block is reserved with 1-3 buds as propagation materials for centralized propagation. Edit this paragraph | Back to the top, the English names of Chinese herbal medicines, Ruyi Flower, Chekuiyan, Goose Egg, Tianbald, Shuixie of Yihua, Mangyu, Rhododendron, Zezhi and Xie. The source of this product is Alisma orientalis (Sam. Juzep, a plant of Alismataceae. The dried tuber of. When the stems and leaves begin to wither in winter, dig, wash and dry to remove fibrous roots and coarse skin. Production method: removing impurities, micro-foaming, fully wetting, cutting into thick pieces, and drying. Salt-baked Alisma orientalis: Slice Alisma orientalis and fry it dry according to the salt-baked method (Appendix II D) (add 2.5 kg of salt per 100 kg and dissolve it in boiling water). Properties This product is spherical, oval or ovoid, with a length of 2 ~ 7 cm and a diameter of 2 ~ 6 cm. The surface is yellow-white or yellow-brown, with irregular lateral annular shallow grooves and most tiny protruding fibrous root marks, and some have tumor-like bud marks at the bottom. Solid, yellow and white in cross section, powdery, with many pores. Slight breath and bitter taste. Identify this product powder as yellowish brown. There are many starch granules, and the single granule is oval, ellipsoid or oval, with a diameter of 3 ~ 14 micron, and the umbilical point is herringbone, short and short. ~ 3 fractional component. The parenchyma cells are round with many oval pits and integrated pits. The vertical wall of endodermis cells is wavy, thick and lignified, with sparse holes and grooves. Most oil cavities are broken, and the intact ones are round, with a diameter of 54 ~ 1 10μ m, and sometimes oil droplets can be seen in secretory cells. Sweet and cold in nature. Meridian of kidney and bladder. Function: Mainly used for diuresis and clearing damp-heat. Used for dysuria, water swelling and diarrhea, dizziness due to phlegm, heat stranguria and astringent pain; Hyperlipidemia. Usage and dosage 6 ~ 9g. Store in a dry place to prevent moths. Remarks: (1) is often used with Poria, Polyporus and Plantago Seed to treat dysuria, edema, stranguria and leukorrhagia. For dizziness caused by excessive diarrhea phlegm, it can be used with Baizhu. In addition, this product is also suitable for patients with deficiency of kidney yin and excessive deficiency of fire. It is used with Rehmannia glutinosa and Cornus officinalis to purge fire. Alisma orientalis is good at benefiting water, which may actually hurt yin, but it has no effect on nourishing yin. Zhang Jingyue said that "nourishing yin is not good for water, and benefiting water is not good for yin" can be used for reference, so we should pay attention to it in clinic. Excerpt from this paragraph edited by China Pharmacopoeia | It is safe to return to the top of poisonous Alisma orientalis. The side effects are far lower than those of ordinary foods and seasonings, such as salt, pepper and even high-fat foods that westerners like to eat. Clinical dosage of 200 times can still be safe. Even so, Alisma orientalis, like many cereals, can still see side effects when the extract is used in excess. Literature 1, China Journal of Food Hygiene, 02, 2004, paragraph; Wang Junbo; Yin Xiling; Yan Shaofang; In order to evaluate the safety of Alisma orientalis, Xiao Ying fed rats for 60 days and administered Alisma orientalis decoction to animals by gavage to study its subchronic toxicity. The results showed that, compared with the control group, there was no significant difference in body weight and food utilization rate among the low, middle and high dosage groups of Alisma Decoction (the dosage was 83, 167 and 333 kgbw, which were 50, 100 and 2 0 0 times of the clinical dosage, respectively) (P >: 005). Blood urea nitrogen tends to increase, and the difference between high dose group and control group is significant (P