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.(family Equisetaceae), 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 as:

(1).Equisetum hiemale L.

 Botanical description: Equisetum, perennial herb, height is above 50 cm. Rhizome short, black, prostrate, nodes growing dense whorled black - brown roots. Stems fascicular, rigid, erect, unbranched, cylindrical, 4~8 mm in diameter, related to knotty nodes, internodes hollow, stem surface with 20~30 longitudinal ribs, each row with two rows of verticular projections. Leaves degenerate into scales, base united into a tubular sheath, sheath 6~10 mm long, base with a dark brown ring, upper part pale gray, apex with many brown serrate lobes, lobes lanceolate conical, apex long, acute, back with a shallow groove in the middle, lobes early, only on stem apex and young stem not shed. Sporangium panicle born at stem apex, oblong, 1~1.5 cm long, apex with small dark brown tip, composed of many rotary-arranged hexagonal shield sporophyll, along the edge of sporophyll several cysts, sporangium large. Spores are numerous, homogenous, spherical, with 2 filamentous slugs, crisscross-shaped, coiled on spores, which bounce off in the water for reproduction. The sporangium is produced between June and August.

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

 Growth characteristics: The plant grows in the hillside forest, river wetland, streamside, like wet environment, sometimes also grows in the weeds. It prefers wet, grows in the hillside, river bank, and wetland, like direct sunlight.

 Common Scouring Rush Herb:herb photo Characters of herbs: The stem is tubular, straight, 20~60 cm long, 2~6 mm in diameter, with obvious nodes, 2.5~9 cm long internodes and no branches. The surface is grayish green or yellow-green, with 18~30 longitudinal edges, and many small bright warty protrusions on the edges, which are coarse and rough. There are sheath-like leaves at nodes. The base and teeth of the sheath are brown-black, and the middle part is light yellow. The herb is light, the texture of the herb is brittle, easily broken, hollow in the fracture surface, surrounded by many small round cavities. The herb has a slight smell, it tastes sweet and mild, and slight puckery, and it has a sands feeling 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.

Herbs Clearing Heat and Purging Fire.

 Introduction: Herbs Clearing Heat and Purging Fire: an agent or substance that has the effect of clearing heat from the Qi system, with high fever, dire thirst, dry yellow tongue coating and rapid surging pulse, or purging fire from the internal viscera, such as heart fire, liver fire, etc.
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