Pinyin: Zihuadiding
Aliases
Jiantoucao, Didincao, Tu'ercao.
Source
Violaceae plant *Viola yedoensis* MakinoViola yedoensisThe dried whole plant of Makino.
Botanical Description
Perennial herb, 4-14 cm tall. Rhizome short, erect, pale brown, 4-13 mm long, 2-7 mm in diameter; nodes densely arranged, with several fine roots. Leaves numerous, basal, rosulate; petiole at flowering 1-2 times longer than leaf blade, with narrow wings, at fruiting up to 10 cm long, upper part with broader wings; lower leaves usually smaller, triangular-ovate or narrowly ovate, upper leaves longer, oblong, narrowly ovate-lanceolate or oblong-ovate, 1.5-4 cm long, 0.5-1 cm wide, apex rounded-obtuse, base truncate or cuneate, rarely slightly cordate, margin with relatively flat rounded teeth, both surfaces glabrous or sparsely pubescent, leaves enlarged at fruiting; stipules membranous, pale white or pale green, 2/3-4/5 adnate to petiole, free part shallowly lanceolate. Pedicels usually numerous, slender, equal to or exceeding leaves; flowers purple-violet or pale purple, rarely white, throat paler with purple stripes; sepals 5, ovate-lanceolate or lanceolate; petals 5, obovate or oblong-obovate; spur slender, tubular, 4-8 mm long, apex rounded; stamens 5; ovary ovoid, style clavate, stigma triangular. Capsule oblong, 5-12 mm long, glabrous. Seeds ovoid, 1.8 mm long, pale yellow. Flowering and fruiting from mid-April to September.
Habitat and Distribution
It grows in fields, wastelands, grassy slopes on hillsides, forest edges, or shrublands. It is distributed throughout most regions of the country.
Harvesting and Processing
Spring and autumn are the two seasons for harvesting; remove impurities and dry in the sun.
Chemical Constituents
This product contains p-hydroxybenzoic acid, trans-p-hydroxycinnamic acid, and kaempferol-3-O- rhamnoside and other constituents.
Pharmacology
Has an anti-pathogenic microbial effect.
Properties and Channel Entry
Bitter, acrid, and cold. Enters the Heart and Liver channels.
Functions and Indications
Clears Heat, resolves toxicity, cools Blood, and reduces swelling. Used for furuncles, carbuncles, deep-rooted boils, erysipelas, and venomous snake bites.
Dosage and Administration
Oral: decoct in water, 10-30 g, fresh 30-60 g. External: appropriate amount, crush for application.
Precautions and Contraindications
Caution should be exercised in patients with Yin-type abscesses characterized by diffuse swelling without a defined head, as well as in those with Spleen and Stomach deficiency-cold patterns.
Prescriptions
1. For lymph node tuberculosis: Zihuadiding 15 g, Xiakucao 12 g, Yuanshen 9 g, Dabei Mu 9 g, Muli 15 g. Decoct in water and take orally. (Qinghai Commonly Used Chinese Herbal Medicine Manual) 2. For appendicitis: Zihuadiding and Jinyinhua each 30 g, Lianqiao and Chishao each 15 g, Huangbai 9 g. Decoct in water and take orally. (Ningxia Chinese Herbal Medicine Manual) 3. For enteritis and dysentery: Zihuadiding and Hongteng each 30 g, Mayi Cao 60 g, Huangqin 10 g. Decoct and take orally. (Suzhou Medical College Chinese Herbal Medicine Manual) 4. For jaundice with internal Heat: Zihuadiding powder, take 6 g with wine. (Qiankun Biyun) 5. For prostatitis: Zihuadiding, Zishen, and Cheqian Cao each 15 g, Haishengjin 30 g. Decoct, 1 dose daily, taken in 2 divided doses, for several consecutive days. (Suzhou Medical College Chinese Herbal Medicine Manual) 6. For febrile disease with macules: Zihuadiding and Shengdi each 15 g, Chishao, Danpi, and Lianqiao each 9 g, Shengshigao 30 g (decocted first). Decoct and take orally. (Anhui Chinese Herbal Medicine) 7. For measles with Heat toxicity: Zihuadiding and Lianqiao each 6 g, Yinhua and Juhua each 3 g. Decoct in water and take orally. (Shaanxi-Gansu-Ningxia-Qinghai Selected Chinese Herbal Medicines) 8. For red, swollen, and painful eyes: Zihuadiding, Juhua, and Bohe each 9 g, Chishao 6 g. Decoct in water and take orally. (Qingdao Chinese Herbal Medicine Manual)
