Introduction of Huang Yuan Hua:Yellow Genkwa Leaf and Flower or Folium et Flos Wikstroemiae Chamaedephnis.

TCM Herbalism:Medicinals and Classifications. ✵The TCM herbalism is also known as pharmaceutics of Traditional Chinese Medicine, or Chinese pharmaceutics, is the branch of health science dealing with the preparation, dispensing, and proper utilization of Chinese herbs. It is majorly composed of Introduction of Chinese Medicinals, Classification of Chinese Herbs, Formulas, and Patent medicines.

Classifications of Herbs:Diuretics and Hydragogues Herbs:Herbs Hydragogues or Drastic Purgatives.

 TCM Herbs Icon09 Introduction: Herbs Hydragogues or Drastic Purgatives: also known as diuretic hydragogue herbs, an agent or substance herbs that causes copious discharge of water through catharsis and at the same time increases urine excretion.

 
Folium et Flos Wikstroemiae Chamaedephnis(Chamaedaphne Leaf and Flower,Yellow Genkwa Leaf and Flower).

Yellow Genkwa Leaf and Flower Pin Yin Name: Huáng Yuán Huā.
 English Name: Chamaedaphne Leaf and Flower,Yellow Genkwa Leaf and Flower.
 Latin Name: Folium et Flos Wikstroemiae Chamaedephnis.
 Property and flavor: warm, pungent, mild toxic.

 Brief introduction: The herb Folium et Flos Wikstroemiae Chamaedephnis is the leaf and flower-bud of Wikstroemia chamaedphne Meisn.(family Thymeleaceae), it is used in a similar way to Flos Genkwa, and also for treating acute and chronic hepatitis, schizophrenia, and epilepsy. The herb is commonly known as Folium et Flos Wikstroemiae Chamaedephnis, Chamaedaphne Leaf and Flower, Yellow Genkwa Leaf and Flower, Huáng Yuán Huā.

 Botanical source: Official herbal classics and other famous herbal classics defined the herb Folium et Flos Wikstroemiae Chamaedephnis(Chamaedaphne Leaf and Flower, Yellow Genkwa Leaf and Flower) as the flower-bud of the species (1). Wikstroemia chamaedphne Meisn. It is a plant of the Daphne Linn. Genus, the Thymelaeaceae family of the Myrtales order. This commonly used species is introduced as:

 Wikstroemia chamaedphne Meisn. (1).Wikstroemia chamaedphne Meisn.:
 Botanical description: It is commonly known as Hé Shuò Ráo Huā. A deciduous small shrub, 30~120 cm tall, branching many and slender, glabrous, old branches brownish yellow, young branches green, easily broken, section visible white spongy fibers. Leaves opposite or subopposite, petiole short. Leaf-blade lanceolate, smooth glabrous, green above, slightly shriveled after drying, grayish-green below, smooth, 2.5~5.5 cm long, 0.2~1 cm wide, entire, apex acute, base cuneate or acuminate, margin slightly rolled down, white spongy fibers at veins visible at fracture. Inflorescences terminal umbel, a constant collection of panicles. Perianth tubular, yellow, apex 4-lobed, 8 stamens, twirling into perianth tube; Ovary inferior, elliptic, stigma short, rounded. Drupe is ovate. Its flowering period is from June to August, fruiting from September. Light smell, taste pungent, astringent, stimulating.

 Wikstroemia chamaedphne Meisn. Ecological environment: The plant grows on the hillside, roadside, ditch edge, and grass. The plant mainly distributes in the north, northwest, the middle reaches area of the Yellow River, and other areas of China.

 Characters of herbs: Flowers are rod-shaped or slender long tubular, mostly scattered in clusters, bisexual, not with petals, calyx cylindric and thin, rarely curved, 3~8 mm long, surface grayish-green or yellowish, densely pubescent, apex lobes 1/6-1/4 of full length, abaxially also pubescent. Anatomical observation showed that calyx apex lobes were also 4, ovoid, 8 stamens, arranged in 2 rows, inserted in calyx tube, without filaments. The smell is weak, sweet-spicy taste. The herb which is fresh, neat and clean color is better.

 Pharmacological actions: ①.Anti-arrhythmia: the total flavonoids of the herb Folium et Flos Wikstroemiae Chamaedephnis has an anti-arrhythmia effect. ②.Anti-early pregnancy: alcohol extract of yellow genkwa has an anti-early pregnancy effect.

 Medicinal efficacy: Induce diarrhea and hydragogue, wash away the phlegm. It is indicated for abdominal distension and fullness, phlegm and fluid retention, cough and dyspneal fullness, infectious hepatitis, schizophrenia, epilepsy, etc.

 Administration of Folium et Flos Wikstroemiae Chamaedephnis(Huáng Yuán Huā): 
 
Reference: Administration Guide of Folium et Flos Wikstroemiae Chamaedephnis(Huáng Yuán Huā)
TCM Books: N/A(CP),Internally:grinded into fine powder, 1.5~3 grams; water decoction, 3~6 grams; for the treatment of schizophrenia,dosage could be gradually up to 6 grams from smaller dosage,water decoction.(CHMM).

 
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References:
  • 1.Introduction of Huang Yuan Hua:Yellow Genkwa Leaf and Flower or Folium et Flos Wikstroemiae Chamaedephnis.
  • 2.TCM Books:DCTM(Dictionary of the Chinese Traditional Medicine),CHMM(Chinese Herbal Materia Medica).

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