Purple loosestrife

Chinese Name: Lythrum chinense

[category] whole grass

[synonyms] duiyelian (Guizhou folk medicine), duyacao, tielingjiao (Hunan medicinal records). Verbena, Patrinia.

[source] it is the whole plant of Chelidonium.

[plant morphology] Lythrum chinense

Herbs perennial, 30-100 cm tall, all pilose, sometimes glabrous. Stem erect, much branched, tetragonal. Leaves opposite or 3-whorled, narrowly lanceolate, 4-6 cm long, 8-15 mm wide, apex obtuse or mucronate, base rounded or cordate, sometimes slightly amplexicaul. Inflorescence terminal; flowers bisexual, several clustered in axils of leafy bracts; calyx tubular, 6-8 mm long, with 12 longitudinal edges, lobes 6, triangular, appendages linear, longer than calyx lobes, about 1.5-2 mm; petals 6, purple red, long elliptic, base cuneate; stamens 12, 6, long and 6 short; ovary sessile, 2-locular, style cylindrical, stigma capitate. Capsule elliptic, completely enclosed in calyx, 2-valved when heated; seeds numerous, small. The flowering period is from July to August.

It grows in tidal wetland and is often cultivated as an ornamental. It is distributed in most areas of China.

It is also used for medicine. The main differences between the two species are as follows: the stems and leaves are glabrous, the leaves are opposite and lanceolate; 3-5 flowers are integrated into short cymes, which are whorled in the axils of the leaves (bracts), and the appendages of the calyx are short, about 0.6 mm long. It is distributed in the north and northeast of China.

[collection] harvest in autumn.

[chemical constituents]: Vitexin, orientin, isoorientin, chlorogenic acid, ellagic acid, gallic acid, choline, tannin, pigment, volatile oil, pectin, resin and alkaloid.

Bitter, cold.

① Guizhou folk medicine: "cold in nature, sweet in taste. "

② "Hunan medicine records": "bitter, cold, non-toxic. "

Functions and indications: clearing heat and cooling blood. Clearing heat and toxin, astringent, breaking channels and dredging blood stasis. For dysentery, HAEMORRHEA, ulcers. It is used for dysentery, blood stasis and amenorrhea.

① Guizhou folk medicine: "clearing away heat, stopping bleeding.". "

② "Chinese medicine plant atlas": "stop diarrhea, treat bacillary dysentery. "

[usage and dosage] take Jiantang orally, 0.5-1 Liang. External use: apply at the end of the research.

[selection] 1. To treat dysentery, take the water decoction of Chelidonium for three to five yuan. (Hunan medical records)

② Treatment of ulcers: qianqu vegetable leaves, sunflower plate, dry, grind the end, first with honey on the affected area, and then the end of the application of drugs on the affected area. (Hunan medical records)

Chinese PinYin : Qian Qu Cai