Introduction of Ye Ju Hua:Wild Chrysanthemum Flower or Flos chrysanthmi Indici.
✵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:Herbs Clearing Heat and Counteracting Toxins.
Introduction: Herbs Clearing Heat and Counteracting Toxins: an agent or substance herbs that counteracts heat toxins or fire toxins, mainly indicated in the treatment of boils, sores, abscess, erysipelas, epidemic infectious diseases, mumps, dysentery, insect or snake bite, and burns.
✵Till the date Oct 10th,2019, there are totally  kinds of common TCM herbs,  kinds of related plant species,  fungus species, are recorded in this category. These Herbs Clearing Heat and Counteracting Toxins are briefly introduced separately:
Pin Yin Name: Yě Jú Huā.
English Name: Wild Chrysanthemum Flower.
Latin Name: Flos chrysanthmi Indici.
Property and flavor: slight cold, bitter, pungent.
Brief introduction: The herb Flos chrysanthmi Indici is the dried flower-head of Chrysanthemum indicum L.(family Compositae), used to clear heat and counteract toxins for treating boils, sores, carbuncles, erysipelas, acute conjunctivitis, and also externally for eczema and skin itching. The herb is commonly known as Flos chrysanthmi Indici, Wild Chrysanthemum Flower, Yě Jú Huā.
Botanical source: The herb Flos chrysanthmi Indici(Wild Chrysanthemum Flower) is the dried flower-head of Chrysanthemum indicum L., it is a plant of the Chrysanthemum(mums or chrysanths) genus, the Asteraceae(Compositae) family of the Asterales order. Other famous herbal classics defined the herb Flos chrysanthmi Indici(Wild Chrysanthemum Flower) as the dried flower-head of species (1). Chrysanthemum indicum L. or (2). Pyrethrum lauandulifolium Fisch. These 2 commonly used species are introduced as:
(1).Chrysanthemum indicum L.: Botanical description: It is commonly known as Yě Jú Huā. Chrysanthemums have dark green, deeply lobed and aromatic leaves with soft grey undersides. They come in a wide variety of flower shapes, sizes, and colors, from dark burgundy, bronzes, and oranges, to lavenders, light pastel pinks, and whites. The hundreds of cultivars of mums are classified by flower shape: pompons are double and ball-shaped; reflexed are double with downward curving rays; spiders are double with long tubular, spreading rays; spoons are semi-double with spoon-shaped rays, and there are several other shapes. All the garden mums bloom in late summer or fall and many cultivars flower in spring as well. Plants may be low and spreading or may reach up to 5'.
The flowering plant grows to 0.6 meters. It is in flower from August to October. The scented flowers are hermaphrodite (have both male and female organs) and are pollinated by insects. It cannot grow in the shade and requires moist soil. As a herb, it is harvested in autumn when the flower is in full bloom. Dry it in the sun or bake it until dry and store it for later use.
Ecological environment: the wild chrysanthemum grows on hillside grasslands, thickets, river water wetlands, coastal saline lands, field sides, roadsides. The plant mainly distributes in the north, east, central and southwest areas of China.
Growth characteristics: The plant Chrysanthemum indicum prefers cool and humid climate, cold resistance. It is advisable to cultivate loam soil with deep soil layer, loose and fertile soil and rich humus. Liming is applied to disinfect the hole. The insect pests are flea beetle, aphid.
Characters of herbs: capitate, globose, 1.5~2.5 cm in diameter, brownish-yellow. Involucral bracts 4~5 layers, outer bracts ovate or ovate-triangular, 2.5~3 mm long, outer surface middle gray-green or light brown, often covered with white hairs, margin membranous; Middle bract ovate; Inner bract long elliptic table. Involucre bases some residual total pedicels. Ligulate flower 1 wheel, yellow, crinkled, flattened, tongue 1~1.3 cm long, apex entire or 2-3 teeth; Tubular flowers numerous, dark yellow. It is fragrant and bitter. The herb with integrity, the color yellow, smells fragrance for the best.
Pharmacological actions: ①.Hypotensive effect: in the acute test on animals, the wild chrysanthemum extract was injected intraperitoneally or orally to the rats without anesthesia, and had an obvious hypotensive effect. ②.Antiviral and antibacterial effects: in vitro experiments, wild chrysanthemum decoction 1:80 can delay the disease of cells infected with orphan virus (human embryonic renal primary monolayer cells). The decoction of wild chrysanthemum 1:320 had an inhibitory effect on staphylococcus aureus, diphtheria bacillus and dysentery bacillus in vitro.
Medicinal efficacy: Clear heat and detoxification, dispel wind and clear heat, dispel wind and calm the liver, detumescence and detoxification. It is indicated for malignant boils, ulcers, red eyes and swelling pain, headache and dizziness, wind-heat cold, pneumonia, diphtheria, gastroenteritis, hypertension, malignant boils, carbuncle, canker(mouth sore), erysipelas, eczema, dermatitis, epidemic blisters, swelling and pain in the throat.
Administration of Flos chrysanthmi Indici(Yě Jú Huā):
Administration Guide of Flos chrysanthmi Indici(Yě Jú Huā)
Internally:3~9 grams(CP), or water decoction, 0.5~2 qian(about 1.5~6 grams), or prepare to pill,powder(DCTM), or water decoction, 1.5~6 grams, big dosage could be 15~30 grams; grinded to fine powder and prepared to pill, powder(CHMM).
(2).Pyrethrum lauandulifolium Fisch.: Botanical description: It is commonly known as Yán Xiāng Jú Huā, or Rock-Fragrant Chrysanthemum, Dendranthema lavandulifolium (Fisch. ex Trautv.) Ling & Shih. The difference between this species and the Chrysanthemum indicum L. is that the leaves are feathery and deeply divided, green or pale green, and the two sides are sparsely covered with slightly more leaved fluff; Inflorescences mostly arranged in loose corymbals or compound corymbals at the top of stem branches, with yellow ligulate flowers. Its flowering period is from May to November.
Ecological environment: the rock fragrant chrysanthemum grows on mountain slopes, rocks, river valleys, and riverbanks. The plant mainly distributes in the area of the Yellow River, the area of the Yangtze River, and other areas of China.
Characters of herbs: capitate, 1~1.5 cm in diameter; Involucral bracts 4~5 layers, outer bracts linear or linear-oblong, 2.5 mm long; Middle inner bracts ovate, oblong to oblanceolate. Ligulate flower yellow, ligulate elliptic, length 5~7.5 mm. The herb with integrity, the color yellow, smells fragrance for the best.
1.Introduction of Ye Ju Hua:Wild Chrysanthemum Flower or Flos chrysanthmi Indici.
2.TCM Books:DCTM(Dictionary of the Chinese Traditional Medicine),CHMM(Chinese Herbal Materia Medica).