Characteristics: The leaves are often curled and broken. The intact leaves are oval and heart-shaped after being flattened, with 3 to 7 shallow lobes, and the lobes are triangular. The upper surface is dark yellow-green, and the lower surface is gray-green. The leaves have 7 to 11 veins and are protruding on both sides. The smell is slight and the taste is slightly pungent. Living form: leaves are alternate, oval and heart-shaped, 7-18cm in diameter, 5-7 palmately divided, with blunt teeth on the edges; petiole 5-13cm long.

Chemical composition: Contains flavonoid glycosides, phenols, amino acids, reducing sugars, and mucilage.

Nature and flavor: Cool in nature and slightly pungent in taste.

Indications: Clearing the lungs and cooling blood, reducing swelling and draining pus. It is used for cough due to lung heat, hypertrophic rhinitis, lymphadenitis, appendicitis, carbuncle abscess, acute otitis media, burns and scalds.

Harvesting: Harvested in summer and autumn and sun-dried.

Recipe:

①Treatment of local purulent infection

Take hibiscus leaves and flowers and dry them in the sun, grind them into powder and sift, add Vaseline to make a 1:4 ointment , apply externally to the affected area (apply all around if it has ulcerated); it can also be made into gauze for drainage of sores. Change the dressing once a day or every other day. It can treat surgical infections such as boils, carbuncles, cellulitis, mastitis, and deep abscesses. It can reduce swelling, relieve pain, and promote absorption in the early stage. In the middle and late stages, it can accelerate localization, ulceration, and pus removal. No poisoning, local dermatitis or other complications were found during application.

②Treat burns

Use 1 jin of hibiscus leaves (double the fresh leaves), add 2 jins of Vaseline, simmer until the leaves are withered and charred, filter to remove residue, spread on disinfected dressing, or Make hibiscus leaf ointment and gauze for external application, and change the dressing once a day. 133 cases were treated, the minimum burn area was 1, the maximum was 30, and most were I to II°. Except for a few patients who were treated with other Chinese herbal medicines and antibiotics due to infection and other reasons, external application was used alone. The shortest treatment time is 3 days and the longest is 68 days. Hibiscus ointment has an astringent effect on burns, can promote the absorption of wound exudate and reduce secretions; after application, the area will be cool and comfortable, and it can quickly relieve pain. The wound heals with little scarring and no side effects.

③Treatment of mumps

Dry and crush hibiscus leaves, pass through a No. 80 sieve, mix the fine powder with egg white, apply it on oil paper, stick it to the affected area, and use it externally Cover with gauze and fix. Change the dressing twice a day until the swelling subsides. After treatment in 16 cases, the body temperature dropped to normal in an average of 2 to 3 days, and the swelling subsided in 4 to 6 days; 3 cases of orchitis were complicated and cured in an average of 10 days. The average hospital stay was 7.5 days.

Unilateral:

1. Red eyes, swelling and pain. Grind hibiscus leaves into powder, mix well with water and apply "cooling ointment" on the temples.

2. Menstruation does not stop. Use hibiscus flowers and lotus pod shells, divide them into powder, and give them rice soup at two qian each time.

3. Pain when falling sideways. Use two qian each of hibiscus leaves and yellow tillers, grind the seeds into powder, grind one hibiscus seed kernel into vinegar and apply it on the scrotum to stop the pain.

4. Carbuncle is swollen and poisonous. Divide hibiscus leaves (pulverized into powder) and Xanthium angustifolia (pulverized into powder) into equal parts, mix with honey and water and apply it around the affected area.

5. Leprosy on the head. Grind hibiscus root bark into powder and mix with sesame oil. Before applying, decoction with pine hair and willow branches and wash the affected area.

6. Sores caused by soup and fire. Grind hibiscus flowers into powder and mix with oil for application. Works wonders.

7. All sores and swellings. Fry hibiscus leaves and chrysanthemum leaves together and smoke and wash them frequently.