Commelina communis (Latin name: Setcreasea purpurea Boom.), also known as Zizhumei, Purple Leaf Grass, Purple Brocade, etc., is a perennial herb of Commelina, with a plant height of 20-30 cm, round leaves, slightly curly, purplish red and fine fluff. The stem is purple-brown, initially erect, semi-tendril after elongation, and creeping. Flowers in spring and summer, pink in color, with varieties and white stripes on leaves. The flowers are small and white and open in summer and autumn. Under the condition of sufficient sunshine, the flower amount is large.

Commelina purpurea (Records of Traditional Chinese Medicine in Guangxi) is synonymous with blood sorrow (Records of Traditional Chinese Medicine in Guangxi), Hedyotis diffusa, Japanese goldthread root, and duck tongue yellow (Quanzhou Materia Medica).

The source is the whole grass of Commelina communis.

Collect in summer and autumn, dry or use fresh.

Sexual taste "Guangxi Traditional Chinese Medicine Records": "The taste is light and sweet, cool and toxic."

Meridian tropism ① Annals of Guangxi Traditional Chinese Medicine: "Entering the Heart and Liver." ② Quanzhou Materia Medica: "Entering the liver, gallbladder, kidney and bladder."

Functions mainly include promoting blood circulation, promoting diuresis, reducing swelling, resolving hard mass and removing toxic substances. Treat carbuncle, swollen poison, scrofula tuberculosis and gonorrhea.

① Records of Guangxi Traditional Chinese Medicine: "Promoting blood circulation, stopping bleeding and relieving snake venom. Treat snake blisters, sores, snake bites, falls and rheumatism. "

② "Quanzhou Materia Medica": "Relieving water and relieving gall, dispersing stagnation and defeating poison."

Usage and dosage for oral administration: decoction, 3 ~ 5 yuan (fresh1~ 2 Liang). External use: ramming or decocting with water.

Should avoid "Guangxi Traditional Chinese Medicine Records": "Pregnant women should not take it."

Prescription ① Treatment of carbuncle and swelling poison: fresh Commelina communis and xianzhangba are pounded. (Quanzhou Materia Medica)

② Treatment of inguinal or axillary tuberculosis: two or two fresh Commelina communis. Decoct with water. Or add fairy slap and fry together. (Quanzhou Materia Medica)

③ Treatment of snake blister: Purple Commelina leaves, decocted and washed. (Records of Guangxi Traditional Chinese Medicine)

④ Treatment of stranguria: one or two fresh purple Commelina communis. Decoct with rock sugar. (Quanzhou Materia Medica)