Introduction of Chun Pi:Tree-of-heaven Bark or Cortex Ailanthi.

TCM Herbalism:Medicinals and Classifications. ✵The article gives records of the herb Tree-of-heaven Bark, its English name, Latin name, property and flavor, its botanical source one plant species, ①.Ailanthus altissima (Mill)Swingle., 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 Tree-of-heaven Bark, its pharmacological actions, medicinal efficacy, and administration guide.

Cortex Ailanthi(Tree-of-heaven Bark).

Tree-of-heaven Bark:herb photo Pin Yin Name: Chūn Pí.
 English Name: Tree-of-heaven Bark, Tree-of-heaven Ailanthus Bark.
 Latin Name: Cortex Ailanthi.
 Property and flavor: cold, bitter, puckery.

 Brief introduction: The Herb Cortex Ailanthi is the dried root bark or stem bark of Ailanthus altissima(Mill.) Swingle(family Simarubaceae), used for treating diarrhea, chronic dysentery, abnormal uterine bleeding, and leukorrhea. The herb is commonly known as Cortex Ailanthi, Tree-of-heaven Bark, Chūn Pí.

 Ailanthus altissima:fresh leaves Botanical source: Herbal classic book and official herbal classics defined the herb Cortex Ailanthi(Tree-of-heaven Bark) as dried root bark or stem bark of (1). Ailanthus altissima (Mill)Swingle., it is a plant of the Ailanthus Desf. Genus, Simaroubaceae DC. family, Sapindales order plant. This commonly used species is introduced as:

(1).Ailanthus altissima (Mill)Swingle.


 Ailanthus altissima Mill Swingle.:flowering tree Botanical description: It is also known as Chūn Shù. Deciduous trees, up to 20 meters tall, bark smooth and straight lines; Young shoots pith, yellow or tawny fluff when young, glabrescent. Leaves odd-pinnate compound, 40~60 cm long, petiole 7~13 cm long, 13~27 leaflets; Leaflets opposite or subopposite, papery, ovate-lanceolate, 7~13 cm long, 2.5~4 cm wide, apex long acuminate, base oblique, truncate or slightly rounded, 1 or 2 coarsely serrate on each side, glandular on the back, dark green, grayish-green on the back, odorous after soft crushing. Panicles 10~30 cm long; Flowers pale green, pedicels 1~2.5 mm long; 5 sepals, imbricate, lobes 0.5-1 mm long; 5 petals, 2~2.5 mm long, base flanks hirsute; 10 stamens, filaments base densely hirsute, filaments in male flowers longer than petals, filaments in female flowers shorter than petals; Anthers oblong, ca. 1 mm long; 5 carpels, style adherent, stigma 5 lobed. Samara oblong, 3~4.5 cm long, 1~1.2 cm wide; Seeds in the middle of the wings, oblate. Its flowering period is from April to May, fruiting from August to October.

 Ailanthus altissima Mill Swingle.:seeds on branch Ecological environment: The Ailanthus altissima (Mill)Swingle mainly distributes in the north, east, and southwest areas of China, southeast to Taiwan, north to the southern Liaoning, the Yellow River basin is the distribution center. It is widely used all over the world.

 Growth characteristics: The plant is often cultivated near the house and the village, roadside, at an elevation of below 2700 meters above sea level.

 Ailanthus altissima Mill Swingle.:fresh sprouts Characters of herbs: Root bark: the root bark is irregular piece or rolled tubes, with different sizes and thickness of 0.3~1 cm. The outer surface is grayish yellow or yellowish brown, coarse and rough, with many longitudinal lenticel-like protrusion and irregular longitudinal and transverse cracks, yellow and white when rough cortex is removed, the inner surface is light yellow, flat and densely covered with spindle-shaped holes or dots. The texture of the herb is hard and brittle, the outer layer of the fracture surface is granular, and the inner layer is fibrous. The herb has a slight smell, it tastes bitter.

 Dry bark: the dry bark is irregular plate, different sizes, 0.5~2 cm thick. The outer surface is gray-black, extremely coarse and rough, deeply cracked.

 Pharmacological actions: ①.inhibitory effects on Shigeila flexneri, Bacterium sonnei and Escherichia coli in vitro, and also on amoebic dysentery; ②.strong anticancer activity; ③.curative effect on ascariasis and cervical cancer.

 Medicinal efficacy: Clear heat and drying dampness, clear heat and dampness, inducing astringency and stop belt, stop diarrhea and stop leukorrhea, relieve diarrhea, stanch bleeding. It is indicated for leukorrhea with reddish discharge, damp heat diarrhea and dysentery, protracted diarrhea and dysentery, hematochezia, metrorrhagia and metrostaxis.

 Administration of Cortex Ailanthi(Chūn Pí): 
 
Reference: Administration Guide of Cortex Ailanthi(Chūn Pí)
TCM Books: ①.Internally:6~9 grams; ②.Internally:water decoction, 2~4 qian(about 6~12 grams), or prepare to pill, powder. Externally:wash with water decoction or prepare to paste and smear; ③.Internally:water decoction, 6~15 grams, prepared to pill, powder. Externally:proper amount, wash with water decoction, or prepare to paste and smear, or prepare to finely ground herb powder and apply stick.

 
Herbs Clearing Heat and Drying Dampness.

 Introduction: Herbs Clearing Heat and Drying Dampness: an agent or substance bitter in taste and cold in property that is effective for eliminating heat and dampness, usually used in the treatment of diseases caused by damp-heat, such as acute jaundice, acute dysentery, urinary infection, eczema, boils and abscesses.
 
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References:
  • 1.Introduction of Chun Pi:Tree-of-heaven Bark or Cortex Ailanthi.

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