Acid water weed

Acid water weed

(medicinal plants in desert areas of China)

[synonym] Potamogeton tuberosum (medicinal plant in desert area of China).

[source] it is the whole plant of Potamogeton crassifolia.

[plant morphology] Potamogeton cristatus, also known as Potamogeton cristatus.

Perennial aquatic herbs. Rhizome slender, transverse. The stem is weak, much branched, about 2-3 mm in diameter, and the internodes are about 1-3 cm long. The leaves are all submerged, thin, round, ovoid or ovate lanceolate, 2-6 cm long and 1-2.5 cm wide, apex obtuse, base cordate, amplexicaul, with 7-15 veins, of which 3-5 are prominent; stipules are hyaline, 5-20 mm long, and later ruptured into fibrous and detached. Pedicels in axils, spikes 1.5-2.5 cm long. The fruit is obovate, about 2.5-3 mm long and 2-2.3 mm in diameter, with three inconspicuous ridges on the back and a short beak on the top.

In freshwater lake basins and less mobile rivers. Distributed in Liaoning, Jilin, Xinjiang, Inner Mongolia and other places.

[collection] harvested in summer and autumn, fresh or dried.

[chemical constituents] the content of total protein was 6.62-13.54 and crude fat was 0.63-1.27. Nitrogen free extract 45.45-59.15, crude fiber 13.75-15.85, ca2.1-11.0, p0.53-0.62%; carotene 113 mg / kg (dry weight); fresh plant moisture 80-87%. It also contains carotenoid pigments, including lutein, Physalis lutein and neoxanthin.

Light and cool.

[function indications] seeping dampness and dissolving exterior.

[selected prescription] for eczema and pruritus: fresh eye vegetables, Atractylodes, Sophora flavescens. Huangbai two money, Kochia three money. Fried in water; or fresh eye vegetables (hay with a third), Phellodendron amount. Decoct and wash. (nature and taste are listed in medicinal plants in desert areas of China)