Introduction of Pei Lan:Fortune Eupatorium Herb or Herba Eupatorii.

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

Herba Eupatorii(Fortune Eupatorium Herb).

Herba Eupatorii:herb photo Pin Yin Name: Pèi Lán.
 English Name: Fortune Eupatorium Herb.
 Latin Name: Herba Eupatorii.
 Property and flavor: neutral in nature, pungent.

 Brief introduction: The herb Herba Eupatorii is the aerial part of Eupatorium fortunei Turcz., used to resolve damp for relieving nausea, vomiting, and abdominal distension, especially in cases of summer afflictions. The herb is commonly known as Fortune Eupatorium Herb, Herb of Fortune Eupatorium, Herba Eupatorii, or Pèi Lán.

 Botanical source: Herbal classic book defined the herb Herba Eupatorii (Fortune Eupatorium Herb) as the aerial part of (1). Eupatorium fortunei Turcz. It is a plant of the Eupatorium genus, the Asteraceae family (Compositae, aster, daisy family), Campanulales order. This commonly used species is introduced:

(1).Eupatorium fortunei Turcz.


 Eupatorium fortunei Turcz.:growing plant Botanical description: Eupatorium fortunei Turcz is commonly known as Eupatorium chinense L.var.tripartitum Miq., or Pèi Lán. A perennial herb, the plant grows up to 40~100 cm tall. The rhizome is decumbent and reddish-brown. The stem is upright, green, or reddish violet, and the lower part is smooth and glabrous. Leaves are opposite; cauline leaves on the lower part are often withered; cauline leaves on the middle part have short petioles, leaf blades are larger, often trisected or deeply 3-parted, middle lobe is larger, oblong oval or long elliptic-lanceolate, 5~10 cm long, 1.5~2.5 cm wide; cauline leaves on the upper part is smaller, often undivided, or all cauline leaves are undivided, the apex is acuminate, the margin is coarsely serrate or irregularly serrulate, both surfaces are smooth or pubescent along veins, no glandular dots.

 Eupatorium fortunei Turcz.:flowering plant Capitula (flower heads) are mostly apical and grow on the end of a branch, arranged in a compound corymb, 3~6 cm in diameter; general involucre is campanulate (bell-shaped), 6~7 mm long; involucral bracts are in 2~3 layers, imbricate, bracts in the outer layer are short, ovate-lanceolate, bracts in middle and inner layers gradually turn longer, all bracts are prunus (violet red), outside is glabrous and has no glandular points, the apex is obtuse; each capitulum (flower head) has 4~6 flowers, flowers are white or slightly reddish, all are tubular flowers (tubiform floret), hermaphroditic, corolla outside has no glandular points, the apex is 5-dentate lobed; 5 stamens, synandrium, 1 pistil, the ovary is inferior, stigma is bifurcated, stretch beyond the corolla.

 Achenes are cylindrical, turn dark brown (black brown) at maturity, have 5 ridges, 3~4 mm long, glabrous, and have no glandular points; pappi are white, about 5 mm long. Its flowering and fruiting periods are from July to November.

 Eupatorium fortunei Turcz.:flowers Ecological environment: The plant grows in the bush on roadsides or sides of streams. It is rare in wild fields and is often cultivated. The wild plant grows in bushes on roadsides and gully roadsides. The plant is distributed in the lower reaches of the Yangtze River, the Zhujiang River area, southwest areas, and the Hanjiang River area. It also grows in other areas of East Asia.

 Growth characteristics: The plant Eupatorium fortunei prefers a warm and moist climate, is resistant to coldness, is afraid of drought, and avoids waterlogging. The temperature is lower than 19 °C (Celsius, or 66.2 degrees Fahrenheit), and the growth is slow and grows rapidly in season at high temperatures and humidity. The soil requirements are not strict, it is appropriate to choose loose, fertile, sandy loam with good drainage for cultivation.

 Fortune Eupatorium Herb:herb photo Characters of herbs: The stem of the herb is cylindrical, 30~100 cm long, and 2~5 mm in diameter. The surface is yellowish-brown or yellow-green, some are purple, there are obvious nodes and longitudinal ridges, and the length of the internodes is 3~7 cm; the texture of the herb is crisp, and the pith of the fracture surface is white or hollow. The leaves are opposite, have petioles, and are mostly wizzled and broken. When the intact leaf is flattened, they are usually trisected, the lobes are oblong or oblong-lanceolate, the edges are serrated, and the surface is greenish-brown or sap green (dark green). The undivided leaves are ovoid, ovate-lanceolate, or oval after flattening. The herb has an aromatic fragrance, and it tastes slight bitter. The herb of a better grade has tender leaves, foliose (many leaves), a green color and a strong fragrance.

 Pharmacological actions: ①.inhibitory effect on the influenza virus; ②.can cause the estrous cycle of mice to stop temporarily, and the ovulation is inhibited; ③.antibacterial effect.

 Fortune Eupatorium Herb:herb photo Medicinal efficacy: Resolving dampness with aromatics, clear summer heat, dispel dirty, wake up spleen and appetizer, release the summer, relieving exterior syndrome and relieving summer-heat, harmonize the middle energizer, resolving dampness, regulating menstruation. It is indicated for turbid damp obstructing in the middle energizer, affection from summer-heat and dampness, dampness pathogen accumulated internally, cephalea of cold and heat, epigastric distention and fullness, vomit and throw up, nausea and vomiting, sweet and cloying in mouth, bad breath, much saliva, summer dampness exterior syndrome, head distension and chest tightness, irregular menstruation.

 Administration of Herba Eupatorii (Pèi Lán): 
 
Reference: Administration Guide of Herba Eupatorii (Pèi Lán)
TCM Books: ①.Internally: 3~9 grams; ②.Internally: water decoction, 1.5~3 qian (about 4.5~9 grams), fresh herb 3~5 qian (about 9~15 grams) or prepare to pill, powder; ③.Internally:water decoction, 6~10 grams, fresh herb could be 15~20 grams.

 

 
  

 

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References:
  • 1.Introduction of Pei Lan:Fortune Eupatorium Herb or Herba Eupatorii.

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