Introduction of Mu Zei:Common Scouring Rush Herb or Herba Equiseti.

TCM Herbalism:Medicinals and Classifications. ✵The article gives records of the herb Common Scouring Rush Herb, its English name, Latin name, property and flavor, its botanical source one plant species, ①.Equisetum hiemale L., with a detailed introduction to the botanical features of this plant species, the growth characteristics, and ecological environment of this plant species, the features of the herb Common Scouring Rush Herb, its pharmacological actions, medicinal efficacy, and administration guide.

Herba Equiseti(Common Scouring Rush Herb).

Equisetum hiemale L:growing plant Pin Yin Name: Mù Zéi.
 English Name: Common Scouring Rush Herb.
 Latin Name: Herba Equiseti.
 Property and flavor: neutral in nature, bitter, sweet.

 Brief introduction: The herb Herba Equiseti is the dried aerial part of Equisetum hiemale L., used in ophthalmology for treating acute infections and removing nebula. The herb is commonly known as Herba Equiseti, Common Scouring Rush Herb, Mù Zéi.

 Botanical source: The herb Herba Equiseti (Common Scouring Rush Herb) is the dried aerial part of Equisetum hiemale L., it is a plant of the Equisetum. Genus, the Equisetaceae family of the Equisetales order. It is also known as common scouring rush herb, herb of common scouring rush, herb of dutch rushes, herb of rough horsetail, herb of scouring rush or Mù Zéi.

 Equisetum hiemale L:upper part of growing plant Herbal classic book defined the herb Herba Equiseti (Common Scouring Rush Herb) as the dried aerial part of (1). Equisetum hiemale L. This commonly used species is introduced:

(1).Equisetum hiemale L.

 Botanical description: Equisetum hiemale L. is also known as Hippochaete hiemale (L.) Borher., perennial evergreen herb, the stem grows up to 40~100 cm high. The rhizome is thick, dark brown (black brown); the stem above ground is upright, single, hollow, 5~10 mm in diameter, the surface has 20~30 vertical edges; edges have 2 lines of verruciform protrusions, its epidermis cytoderm contains a large amount of silica, so it is very rough. Leaf degrades to a scaly-shape, base connate to a tube-shape sheath, sheath is 6~10 mm long, leaf sheath base and sheath teeth have 1 black ring; sheath tooth is linear subulate, apex is caudate caducous and turns blunt, under surface has 2 lines of edges, form a shallow groove. A fertile spike grows on the apex, long conical, 7~15 mm long, apex has darkish brown pointed tips, composed of many whorls arranged sporophyll in a hexagon shield-shape, the center is stipitate, elliptic spore sacs around arrange in a whorl; many spores, globular shape, with 2 elaters, flick away when meeting water, convenient to spread. Its conidial stage is from June to August.

 Equisetum hiemale L:growing plant cluster Ecological environment: The plant grows in shady damp places under forests on hillsides, river banks, marshes, and streams, sometimes it also grows in weedy fields. Resource distribution: The plant is distributed in the north, northwest, central, and southwest areas of China.

 Growth characteristics: The plant prefers wet and humid, grows on the hillslope, river banks, and marshes, and likes direct sunlight.

 Common Scouring Rush Herb:herb photo Characters of herbs: The stem is a long tubular shape, straight, 20~60 cm long, 2~6 mm in diameter, with obvious nodes, internodes are 2.5~9 cm long, no branches. The surface is grayish-green or yellow-green, with 20~30 vertical edges, many tiny bright verruciform protrusions on the edges, coarse and rough feel. There are sheath-like leaves at nodes, the base and teeth of the sheath are brownish black, and the middle part is yellowish (light yellow). The herb is light, the texture of the herb is brittle, easily broken, hollow in the fracture surface, and surrounded by many small round cavities. The herb has a slight smell, it tastes sweet and mild, and slightly puckery, and it has sand grains feel when chewed.

 Pharmacological actions: ①.astringent effect, anti-inflammatory, hemostatic effect; ②.Cardiovascular effects; ③.Other effects:inhibit platelet aggregation and release, sedative and anticonvulsant effects.

 Medicinal efficacy: Dispel wind and clear heat, cool blood and stop bleeding, brighten eyes and relieve nebula. It is indicated for wind heat and red eyes, nebula, tears in the wind, hemorrhoidal hemorrhage and passing blood, hemorrhoids blood, dysentery with bloody stool, rectocele, etc.

 Administration of Herba Equiseti (Mù Zéi): 
Reference: Administration Guide of Herba Equiseti (Mù Zéi)
TCM Books: ①.Internally:3~9 grams; ②.Internally:water decoction, 1~3 qian (about 3~9 grams), or prepare to pill, powder.Externally:prepare to finely ground herb powder and apply; ③.Internally:water decoction, 3~10 grams, or prepared to pill, powder.Externally:proper amount, prepare to finely ground herb powder and apply stick.

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