Introduction of Ze Xie:Water-plantain Rhizome or Rhizoma Alismatic.

TCM Herbalism:Medicinals and Classifications. ✵The TCM herbalism is also known as pharmaceutics of Traditional Chinese Medicine, or Chinese pharmaceutics, is the branch of health science dealing with the preparation, dispensing, and proper utilization of Chinese herbs. It is majorly composed of Introduction of Chinese Medicinals, Classification of Chinese Herbs, Formulas, and Patent medicines.

Classifications of Herbs:Diuretics and Hydragogues Herbs:Herbs Diuretics.

 TCM Herbs Icon09 Introduction: Herbs Diuretics: also known as damp-draining diuretic herbs,an agent or substance herbs that increases urine excretion and water discharge for treating internal retention of dampness.

 
Rhizoma Alismatic(Water-plantain Rhizome).

Rhizoma Alismatic Pin Yin Name: Zé Xiè.
 English Name: Water-plantain Rhizome.
 Latin Name: Rhizoma Alismatic.
 Property and flavor: cold, tasteless, sweet.

 Brief introduction: The herb Rhizoma Alismatic is the dried tuber of Alisma orientalis(Sam.) Juzep.(family Alismaceae), used (1).to promote urine excretion for oliguria and edema, (2).to filter out damp in cases of diarrhea and leukorrhea, and (3).to purge heat in cases of bladder damp-heat. The herb is commonly known as Rhizoma Alismatic, Water-plantain Rhizome, Zé Xiè.

 Alisma orientale Sam Juz 01 Botanical source: Common famous herbal classics and official herbal classics defined the herb Rhizoma Alismatic(Water-plantain Rhizome) as the dried tuber of the species (1).Alisma orientalis(Sam.) Juzep., it is a plant of the Alisma Genus, the Alismataceae(water-plantains) family, the Alismatales order. This commonly used species is introduced as:

 Alisma orientale Sam Juz 02 (1).Alisma orientale (Sam.) Juz.:
 Botanical description: The Alisma orientale (Sam.) Juz. is a plant of the Alismataceae(water-plantains) family and Alisma genus, it is commonly known as "Alisma orientale", "Asian water plantain", or "Ze Xie", perennial marsh plants, high 50~100 cm. Underground tubers, spherical, up to 4.5 cm in diameter, brown skin, most of the fibrous roots. Leaves rooted; petiole up to 50 cm, the base extended into the sheath-like, width 5~20 mm; leaf blade broadly oval to ovate, 5~18 cm long, 2~10 cm wide, apex acute or short, broad-wedge-shaped base, round shaped or slightly heart-shaped, entire, both sides smooth; 5~7 veins. Stems from the leaves of the plexus, long 10~100 cm, inflorescences usually 3~5 branches, branching under the lanceolate or linear bracts, branches often alternate branches, composed of conical complex umbrella Inflorescences, small pedicels ranging in length; bracteoles lanceolate to linear, acute; 3 sepals, broadly ovate, green or purplish, 2~3 mm long, persistent; petals obovate, membranous, White, shedding; 6 stamens; pistils numerous, free; ovary obovate, lateral flattened, style lateral. Achene most, flat, obovate, 1.5~2 mm long, 1 mm wide, the back of two shallow ditches, brown, style persistent. Its flowering period is from June to August, fruiting from July to September.

 Alisma orientale Sam Juz 02 Ecological environment: The plant grows on the edge of marsh or cultivated. Resources distribution: The plant distributes in the north, east, southwest and northwest, and other areas of China.

 Cultivation biological characteristics: It prefers a warm and humid climate, seedlings like shade, adults like sunshine, fear of cold, in the area with altitude below 800 meters, generally it can be cultivated. It is suitable for the cultivation of paddy fields with sufficient sunshine, rich humus and slightly sticky soil, and reliable water source. Before rice or medium rice, cold-soaking fields with too sandy texture or low soil temperature are not suitable for cultivation.

 Growth characteristics: The plant Alisma orientale prefers a warm and humid climate, seedlings like shade, adult plant prefers sunshine, afraid of cold, can be cultivated in the area at an altitude below 800 meters above sea level. It should be cultivated in paddy fields with sufficient sunlight, rich humus and slightly sticky soil, and reliable water sources. It should not be planted in cold immersion fields with too sandy texture or low soil temperature, precious crop better not be rice or medium rice.

 Alisma orientale Sam Juz 02 Characters of herbs: Tubers globose, elliptic or ovoid, 2~7 cm long, 2~6 cm in diameter. The surface is yellowish-white or light yellow-brown, have irregular transverse ring shallow groove grain and most fine protuberant fibrous root mark, bottom some have tumor shape bud mark. Solid, cross-section yellow-white, pink, most of the pores. Slight smell, slightly bitter taste. The herb which size is big, yellow-white, smooth, qualitative and substantial, powder content sufficient is better.

 Pharmacological actions: The decoction of the herb Rhizoma Alismatic has a significant diuretic effect, especially for patients with nephritis, and anti-platelet aggregation effect. The fat-soluble part of Rhizoma Alismatic can lower blood lipid, lower cholesterol, and antiatherosclerosis. Besides, Rhizoma Alismatic has lower blood pressure, lower blood sugar, anti-fatty liver, weight loss, and anti-inflammatory effects, and has an inhibitory effect on Staphylococcus aureus, Pneumococci, and Mycobacterium tuberculosis, etc.

 Medicinal efficacy: Diuresis, clears dampness and heat, excreting dampness, eliminate heat, treating stranguria. It is indicated for dysuria(difficulty in micturition), edema distension and swelling, diarrhea, oliguria, vomiting, diarrhea and dysentery, phlegm and fluid retention, dizziness, beriberi, pyretic stranguria with pain(painful heat stranguria), gonorrhea, spermatorrhea(nocturnal emission), hematuria(blood in urine), hyperlipidemia(high blood cholesterol levels), etc.

 Administration of Rhizoma Alismatic(Zé Xiè): 
 
Reference: Administration Guide of Rhizoma Alismatic(Zé Xiè)
TCM Books: Internally:6~9 grams(CP),Internally:water decoction,2~4 qian(about 6~12 grams),or prepare to pill,powder(DCTM),Internally:water decoction,6~12 grams,prepared to pill,powder(CHMM).

 
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References:
  • 1.Introduction of Ze Xie:Water-plantain Rhizome or Rhizoma Alismatic.
  • 2.TCM Books:DCTM(Dictionary of the Chinese Traditional Medicine),CHMM(Chinese Herbal Materia Medica).

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