Ju Hua is also known as Flos Chrysanthemi and is the flower head of Chrysanthemum, which is a perennial herb belonging to the family Asteraceae. It is a relatively practical and common Chinese herbal medicine and dietary supplement.
There are about 40 species of this genus, which are distributed in subtropical and temperate regions. The Ju Hua referred to herein is the flower heads of Chrysanthemum morifolium.
Around the 15th century BC, the Chinese started planting Chrysanthemum morifolium. Many Chinese poems had recorded chrysanthemum. It is defined by the Chinese as four gentlemen in flowers, and the other three are plum blossom, orchid, and bamboo. Ju Hua has a meaning of auspiciousness and longevity and is especially important for the Chinese Chongyang Festival.
Around the 8th century, the Chrysanthemum morifolium was introduced to Japan. Since then, it has symbolized the Japanese royal family. In Japan, it means purity and honesty.
Later, Chrysanthemum morifolium was introduced in Europe and the Americas and spread throughout the world. It is an ornamental plant cultivated through long-term artificial selection and has many uses. Growing it can reduce air pollution.
Every year after the autumn chrysanthemums bloom, people gather the flower heads of Chrysanthemum morifolium, remove their impurities, dry them in the shade, and make them into Chinese herbs.
Ju Hua contains apigenin, luteolin, glucopyranoside, baicalin, acacetin, diosmetin, hesperidin, linarin, quercetin, triterpenes, organic acids, amino acids, polysaccharides, ellagic acid, choline, adenine, vitamins, and essential oils. Its volatile oils contain borneol, camphor, and chrysanthenone. The white or yellow Ju Hua with a pleasant fragrance is the best.
According to <Shennong Ben Cao Jing>, the medicinal property of Ju Hua is slightly cold, with a pungent, sweet, and bitter taste. It has a certain therapeutic effect on the pathological changes of the lung and liver meridians.
In Chinese medicine, Ju Hua is often used to dispel wind and heat, suppress liver yang and improve vision, clear heat and remove toxin, treat wind-heat, influenza, febrile diseases, leptospirosis, coronary heart disease, angina pectoris, cerebral infarction, chronic renal failure, ulcerative colitis, chronic hepatitis, neurosis, hyperlipidemia, hypertension, refractory urticaria, flat wart, and trigeminal neuralgia.
There are about 150 kinds of traditional Chinese medicine prescriptions containing Ju Hua, such as Sang Ju Yin, Huang Lian Shang Qing Pian, Ming Mu Di Huang Wan, and Qi Ju Di Huang Wan.
Health benefits of Ju Hua
- Anti-inflammation, anti-fungus, and anti-tumor.
- Anti-oxidation, scavenging hydroxyl radicals and superoxide anions and delaying aging.
- Inhibiting HIV reverse transcriptase and HIV replication.
- Improving cellular immunity and protecting erythrocyte membranes.
- Shortening the clotting time and having antipyretic, sedative, and analgesic effects.
- Dilating the coronary arteries, increasing coronary blood flow and myocardial oxygen consumption.
- Improving myocardial ischemia and myocardial ischemia-reperfusion, preventing arrhythmia, and lowering blood pressure.
- Reducing the total cholesterol and triglyceride in liver tissue, preventing fatty liver.
- Reducing the damage of CCL4 to liver tissue and protecting the liver.
- Inhibiting the increase of local capillary permeability caused by intradermal injection of histamine.
- Dispelling wind and heat, treating fever, headache, and cough in the early stage of warm diseases or wind-heat.
- Suppressing liver Yang and relieving vertigo and headache caused by hyperactivity of liver-yang.
- Clearing the liver heat and alleviating redness and swelling of the eyes caused by the up-flaming of liver fire.
- Improving vision and treating blurred vision caused by the insufficiency of the liver and kidney.
- Removing heat toxins and relieving skin ulcers and carbuncles caused by heat toxins.
- Inhibiting Diplococcus pneumoniae, Staphylococcus albus, Streptococcus haemolyticus B, Staphylococcus aureus, Escherichia coli, dysentery bacillus, typhoid bacillus, Bacillus paratyphosus, Proteus, Pseudomonas aeruginosa, Vibrio cholerae, and Leptospira.
- The study found that it contains vitamin C, which can promote the excretion of lead in the human body.
Ju Hua is used with other Chinese herbs
- It with Sang Ye (Mulberry Leaf), Xing Ren (Semen Armeniacae), Lian Qiao (Fructus Forsythiae), Bo He (Mentha), and Jie Geng (Radix Platycodi) can alleviate fever and cough caused by febrile diseases or wind-heat.
- It with Chan Tui (Periostracum Cicadae) and Jue Ming Zi (Cassia Seed) can relieve the eyes redness and swelling and blurred vision caused by liver heat.
- It with Lian Qiao (Fructus Forsythiae), Gan Cao (Licorice Root), Huang Lian (Rhizoma Coptidis), Zhi Zi (Fructus Gardeniae), Jin Yin Hua (Flos Lonicerae), and Jing Jie (Schizonepeta Tenuifolia) can treat jaundice.
- It with Cang Er Zi (Fructus Xanthii), Xin Yi Hua (Flos Magnoliae), Jin Yin Hua (Flos Lonicerae), and Qian Cao (Radix Rubiae) can alleviate headaches, brow bone pain, nasal congestion, and runny nose.
- It with Jue Ming Zi (Cassia Seed), Dang Shen (Radix Codonopsis), Gou Qi Zi (Fructus Lycii), Chuan Xiong (Rhizoma Chuanxiong), and Shu Di Huang (Processed Rehmannia Root) can nourish the liver and kidneys, treat eye diseases and improve vision.
Side effects of Ju Hua
Ju Hua has almost no side effects and can be drunk for a long time.
A small proportion of people taking it may cause systemic itching, red rash, and contact dermatitis.
Precautions of Ju Hua
- The dosage of Ju Hua should be controlled at 10-15g.
- It can be made into decoction, detox tea, or pills.
- It should not be used to relieve headaches caused by wind-cold.
- It should not be used to treat hypertension caused by phlegm-dampness or blood stasis.
- People with weak spleen and stomach should not take it.
- People with stomach cold should not take it.
- People with a loss of appetite or diarrhea should not take it.