Introduction of Qing Hao:Sweet Wormwood Herb or Herba Artemisiae Annuae.

TCM Herbalism:Medicinals and Classifications. ✵The article gives records of the herb Sweet Wormwood Herb, its English name, Latin name, property and flavor, its botanical source one plant species, ①.Artemisia annua 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 Sweet Wormwood Herb, its pharmacological actions, medicinal efficacy, and administration guide.

Herba Artemisiae Annuae(Sweet Wormwood Herb).

Artemisia annua:growing plant Pin Yin Name: Qīnɡ Hāo.
 English Name: Sweet Wormwood Herb.
 Latin Name: Herba Artemisiae Annuae.
 Property and flavor: cold, bitter, slightly pungent.

 Brief introduction: The herb Herba Artemisiae Annuae is the dried aerial part of Artemisia annua L.(family Compositae), used to clear heat of deficiency type for relieving consumptive fever and also for combating malaria. The herb is commonly known as Herba Artemisiae Annuae, Sweet Wormwood Herb, Qīnɡ Hāo.

 Botanical source: The herb Herba Artemisiae Annuae(Sweet Wormwood Herb) is the dried aerial part of Artemisia annua L., it is a plant of the Artemisia Linn. Genus, the Asteraceae family of the Campanulales order.

 Herbal classic book defined the herb Herba Artemisiae Annuae(Sweet Wormwood Herb) as the dried aerial part of (1). Artemisia annua L. This commonly used species is introduced as:

(1).Artemisia annua L.

 Artemisia annua:growing shrub Botanical description: It is commonly known as Yellow Flower Artemisiae, or Huang Hua Hao. Herbs annual, 40 ~ 150 cm tall. The whole plant has a strong smell of volatile oil. Stem erect, longitudinally striate, much branched, smooth glabrous. Basal leaves spread the ground, bloom when withered; Stem leaves alternate, green when young, yellowish brown when old, glabrous, shortly stipitate, gradually stipitless upward; Leaf blade usually 3-fold pinnate, lobes short and fine, with minute powdery pubescence, dark green above, light green below, with minute hairs or powdery glandular spots; Leaf axis with narrow wings on both sides; The upper part of the stem is attenuated and striate into the lower chamber. Inflorescence small, globose, ca. 2 mm in diameter, with slender short pedicel, mostly conical; Involucre is small, in shape, the flower is tubular flower completely, yellow, periphery is female flower, the center is bisexual flower. Achene ellipse. Its flowering period is from August to October, fruiting period is from October to November.

 Artemisia annua:drawing of plant and herb Ecological environment: the plant Artemisia annua grows in open fields, hillsides, roadsides, riverbanks, etc. The plant mainly distributes in the north and south areas of China.

 Growth characteristics: The plant prefers a warm and humid climate, not resistant to shade, avoid waterlogging. Seed germination temperature is 8~25℃. It is appropriate to cultivate in sunny, loose fertile, rich in humus, good drainage sandy loam.

 Sweet Wormwood Herb:herb photo Characters of herbs: The stem of the herb is cylindrical, the upper part is multi-branched, 30~80 cm long, 0.2~0.6 cm in diameter, the surface is yellow-green or brown-yellow, with longitudinal ridges, the texture of the herb is slightly hard, easily broken, with pith in the middle of the fracture surface. Leaves are alternate, dark green or brown-green, curled and fragile; intact leaves are three times pinnately parted after flattening, the lobes and lobules are oblong or oblong, with short hairs on both sides. The smell of the herb is special fragrant and the taste is slightly bitter. The herb which is green, leafy and fragrant is better.

 Pharmacological actions: ①.strongest inhibitory effect on Staphylococcus aureus; ②.significant anti-malarial effects; ③.artemisinin has a fast antimalarial effect, can promote cellular immunity of the body, antiviral against influenza virus; ④.volatile oil has expectorant, antitussive, antiasthmatic effect.

 Medicinal efficacy: Clear heat, relieve heat, eliminate steaming, relieve malaria. It is indicated for summer pathogen and fever, summer heat, summer heat dampness, dampness warm, Yin deficiency and fever, night heat and early cool, bone steaming heat, malaria, malaria cold and fever, jaundice, heat-dampness jaundice.

 Administration of Herba Artemisiae Annuae(Qīnɡ Hāo): 
Reference: Administration Guide of Herba Artemisiae Annuae(Qīnɡ Hāo)
TCM Books: ①.Internally:6~12 grams,add later to decoct;②.Internally:water decoction, 1.5~3 qian(about 4.5~9 grams), or prepare to pill,powder,Externally:mash and apply stick or prepare to ground herb powder and apply stick;③.Internally:water decoction, 6~15 grams, 20~40 grams for malaria treatment, should not decoct for long time; fresh herbs double dosage, infusing in water and extract juice, or prepare to pill, powder.Externally:proper amount, prepare to ground herb powder and apply stick, or mash fresh herb and apply stick, or wash with water decoction.

Herbs Clearing Heat and Cooling the Blood.

 Introduction:Herbs Clearing Heat and Cooling the Blood: an agent or substance herbs that has the effect of eliminating pathological heat from the nutrient and blood systems in cases of warm diseases marked by fever accompanied by delirium, eruptions and bleeding symptoms, and also in other diseases with bleeding due to heat in the blood.
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