Duckweed

Duckweed

(essential preparation of raw herbs)

[synonyms] Dashen (compendium), zhumulian (Lingnan medicinal records), duckweed (Nanning medicinal records), dapuzao (Lingnan medicinal records), duckweed (Guangxi Medicinal Plant List).

[source] it is the whole plant of Araceae.

[plant morphology] water hyacinth

Floating stemless herb with long hanging roots. Leaves clustered, obovate cuneate, 2.5-10 cm long, apex truncate rounded, base thick, without petiole and leaf, both sides hairy, veins convex, fan-shaped. The spathe is white, tubular in the lower part, open in the upper part, 1.2 cm long, short petiole, pilose, in the center of the leaf cluster; the flowers are unisexual and monoecious; the fleshy inflorescence is united with the dorsal part of the spathe, and separated from the upper part; the male inflorescence is located at the top of the inflorescence axis and consists of several sessile, connate stamens; the female inflorescence is located at the lower part, which is a single, conical ovate, 1-locular ovary with embryo There are many pearls. Berry. The flowering period is from June to July.

Fresh water. It is distributed in South China and East China.

[collection] harvest in summer, remove fibrous roots and dry in the sun.

[herbal medicine] the whole grass is dry, with clustered leaves, mostly shrunken, all in mass shape. The leaves are 3-4cm in diameter, light yellow to light green, and the base is covered with long and dense Tricholoma or fibrous roots. It's soft and fragile. The air is weak and the taste is salty. It is better to be dry and without fibrous root.

Produced in Guangdong, Guangxi, Fujian and other places.

This product is used as duckweed in Guangdong, Guangxi and Fujian.

It is pungent and cold.

① "Preparation of the nature of raw herbal medicine": "it is mild in taste and cold in nature. "

② Fujian folk herbal medicine: "sweet slightly bitter. "

③ "Medicine records of Nanning city": "it is pungent, cold and poisonous. "

Functions and indications: cooling blood, promoting blood circulation, diuresis and dehumidification. It is used to treat urticaria, erysipelas, dropsy, dampness sores, traumatic injuries and nameless swelling.

① "Preparation of raw herbal medicine nature": "treat the foot pain caused by sprinkling wind, cook food. Also wipe sweat spots, can disperse skin blood heat. "

② "Lingnan medicine collection record": "decocting and taking can dredge the meridians, decocting water can wash blood heat and itch, and eliminate swelling and pain of bruises. "

③ Fujian folk herbal medicine: "promoting blood circulation, reducing swelling, removing dampness and relieving itching. "

④ "Nanning drug records": "sweating, antipyretic, diuretic detumescence. Treatment of acne, erysipelas, syphilis, falling injury. "

[usage and dosage] oral: decoction, 3-5 yuan. External use: tamping or boiling water fumigation.

[should not] 1. According to the drug records of Nanning, it is forbidden for pregnant women and those who are not excess heat and excess pathogen. "

② Su Yi's Handbook of Chinese herbal medicine: "the root is slightly toxic, so the root should be removed if taken orally. "

[prescription selection] ① for blood warming up itching: half a Jin duckweed, half a Jin yinhuateng, four Liang DILIN, half a Jin guotangshe, four Liang tujingjie, three Liang zhangmuye (all fresh). Wash in boiling water. (Lu Chuan Ben Cao)

② Treatment of injury and swelling: fresh duckweed, mashed with rock candy, heated and applied externally. (Fujian folk herbal medicine)

③ Treatment of urticaria: crushed, flax, acacia, Tribulus terrestris, Pittosporum each three to five money. Take it in water.

④ Treatment of dampness sores: three Liang algae. Baking for the end, refining honey for the pill.

⑤ Treatment of dropsy: big broken, sugar each four Liang, water three bowls, fried into a bowl, take twice, after taking a lot of urination, swelling will disappear, avoid salt. (4) herbal medicine manual of Jiangxi Province

Chinese PinYin : Da Fu Ping