Introduction of Fan Bai Cao:Diverse-color Cinquefoil or Herba Potentillae Discoloris.
✵The article gives records of the herb Diverse-color Cinquefoil, its English name, Latin name, property and flavor, its botanical source one plant species, ①.Potentilla discolor Bunge., 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 Diverse-color Cinquefoil, its pharmacological actions, medicinal efficacy, and administration guide.
Pin Yin Name: Fān Bái Cǎo.
English Name: Diverse-color Cinquefoil.
Latin Name: Herba Potentillae Discoloris.
Property and flavor: neutral in nature, slightly bitter, sweet.
Brief introduction: The Herb Herba Potentillae Discoloris is the dried entire plant of Potentilla discolor Bunge., used for treating enteritis, dysentery, pharyngitis, and gastro-intestinal bleeding. The herb is commonly known as Herba Potentillae Discoloris, Diverse-color Cinquefoil, Fān Bái Cǎo.
Botanical source: Herbal classic book defined the herb Herba Potentillae Discoloris (Diverse-color Cinquefoil) as the dried entire plant of (1). Potentilla discolor Bunge. It is a plant of the Potentilla L. Genus, Rosaceae family (rose family), Rosales order. This commonly used species is introduced:
(1).Potentilla discolor Bunge.
Botanical description: Potentilla discolor Bunge is commonly known as potentilla discolor, diversecolor cinquefoil, Fān Bái Cǎo. A perennial herb. The root is stout, and the lower part is often hypertrophic and in the shape of fusiform (spindle-shaped). Flower stems are upright, ascending, or slightly explanate, 10~45 cm tall, and densely covered with white fluff. Basal leaves have lobules (folioles) in 2~4 pairs, opposite or alternate; petioles are densely covered with white woolly hairs, sometimes with long pilose, lobules (folioles) are opposite or alternate, sessile; stipule (peraphyllum) is membraneous, brown, outside is densely covered with white pilose; lobule is oblong or oblong-lanceolate, 1~5 cm long, 5~8 mm wide, the apex is obtuse, rarely sharp-pointed, the under surface is dark green, covered with sparse white woolly hairs or hairs fall off and glabrate, the under surface is densely covered with white or hoar (gray-white) wooly hairs; 1 or 2 cauline leaves, with 3~5 palmate lobules, stipule is herbaceous, oval (egg-shaped) or broadly ovate, edge is often incised-dentate, the under surface is densely covered with white woolly hairs.
Flowers are hermaphroditic; Cyme, pedicels are 1~2.5 cm long, outside is woolly; Flowers are 1~2 cm in diameter; Sepals are triangular-ovate, calycles are lanceolate, shorter than sepals, outside is covered with white woolly hairs; Flower petals are yellow, obovate, apex is emarginate or obtuse, longer than sepals; Style is subapical, stylopodium is papillary inflated, stigma is slightly enlarged.
Achenes are subreniform, about 1 mm wide, and smooth. Its flower period and fruiting period are from May to September.
Ecological environment: The plant grows in the wasteland or barren land, mountain valleys, gullies, grassland on hillsides and mountain slopes, grassy marshland, and open forests, in areas at altitudes of 100~1,850 meters above sea level. The plant is mainly distributed in China, and North-East Asia; In China, it is mainly distributed in the middle and lower reaches of the Yangtze River, the Zhujiang river area, the North China plain area, and Taiwan.
Growth characteristics: The plant prefers a mild and humid climate. It is better to cultivate in loose and fertile sandy loam. The plant prefers slightly acidic to neutral sandy loam with good drainage, suitable for wet soil, and also resistant to drought and barren. It is suitable for a mild, dry climate.
Characters of herbs: The tuberous root is spindle-shaped or cylindrical, and a few are thin and long, with irregular twisted vertical grooves, 3~8 cm long, and 0.4~1 cm in diameter; the surface is yellowish-brown or reddish dark brown, the cork bark is flat, the texture of the herb is hard and brittle (crisp), the fracture surface is flat, and gray-white or yellow-white. The basal leaves are tufty, the odd-pinnate compound leaves are shriveled and curly, after flattening, the leaves are 4~13 cm long, with 3~9 leaflets (lobules), short or sessile, rectangular-circular or narrowly oblong oval, the apical leaflets are relatively larger, the upper surface is dark green or gray green, there is dense white fluff on the undersurface, the edge is incised-dentate. The herb has a slight odor, it tastes sweet taste, and slightly puckery.
The herb of better grade has a hypertrophic root with celadon leaves (grayish green leaves).
Pharmacological actions: ①.inhibitory effect on Shigella dysenteriae and Shigella flexneri. ②.The herb has no anti-amoeba effect in vitro. ③.The components fumaric acid, gallic acid, protocatechuic acid, quercetin, ningerin, kaempferol, and m-benzoic acid have antibacterial effects on Shigella dysenteriae and Shigella flexneri, among them gallic acid and quercetin are the most active.
Medicinal efficacy: Clear heat and detoxification, relieve dysentery, hemostasis (stanch bleeding), cool blood and hemostasis, detumescence (reduce swelling). It is indicated for diarrhea and dysentery of heat dampness, dysentery, malaria, pulmonary heat and cough asthma, abscess of the lung, hemoptysis, spitting blood, blood heat and epistaxis, hemafecia (bleeding in stool), metrorrhagia and metrostaxis, carbuncle swelling and sore poison, scrofula, tuberculosis, etc.
Administration of Herba Potentillae Discoloris (Fān Bái Cǎo):
Administration Guide of Herba Potentillae Discoloris (Fān Bái Cǎo)
①.Internally:9~15 grams, cautiously use for pregnant woman; ②.Internally:water decoction, 3~5 qian (about 9~15 grams), fresh herb 1~2 liang (about 30~60 grams), or infusing in wine. Externally:mashed and apply stick; ③.Internally:water decoction, 10~15 grams, or infusing in wine and take. Externally:proper amount, fumigation wash with water decoction, or mashed fresh herb and apply stick.
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1.Introduction of Fan Bai Cao:Diverse-color Cinquefoil or Herba Potentillae Discoloris.