Red hen grass

Red hen grass

(drug records of Nanning City)

[source] it is the stem and leaf of Desmodium macrophyllum.

[plant morphology] Desmodium macrophyllum, also known as mung bean of gangeshan mountain.

Subshrub like herbs, up to 1.5 m high. Stem weak, slightly branched, pilose. Leaf simple, membranous or papery, oblong ovate or ovate, 5-13 cm long, 3.5-7 cm wide, apex short pointed, base round, covered with gray pilose below; petiole 1-2 cm long, covered with hairs; stipules linear conic, 8-10 mm long. Raceme axillary and terminal, 15-30 cm long; 2-6 flowers clustered, flower bundles scattered; petiole 2-5 mm long, densely hairy; bracts small, bristly; calyx about 2 mm long, coarsely hairy, calyx teeth lanceolate; corolla green white, about 3 mm long; ovary densely pilose. Pods dense, slightly curved, 1.2-2 cm long, 2 mm wide, with 7-9 pods, subglabrous or uncinate. The flowering period is from April to August.

Born in the grass of wasteland. Distributed in Guangdong, Guangxi, Guizhou, Yunnan, Taiwan and other places.

[collection] it can be harvested all year round, fresh or dried in the sun.

[chemical constituents] the root contains about 0.05% of liquid alkaloids, from which n, n-dimethyltryptamine and its NB oxide, jatroponin, maltine, n-methyltyramine and β - phenylethylamine are isolated. It also contains 0.03% γ - hydroxypalmitolide, 2.1% ether soluble resin, organic acid, reducing sugar and volatile oil.

The aerial part contains 5-methoxy-n, n-dimethyltryptamine and its NB oxide, N, n-dimethyltryptamine and its NB oxide, Nb methyl tetrahydroharman and 6-methoxy-2-methyl - β - carboline.

The seed contains fatty oil, sugar and alkaloid. The fatty oil contains 30.47% oleic acid, 31.85% linoleic acid, 6.68% palmitic acid, 1.40% stearic acid and 6.21% eicosanoic acid. Five kinds of phospholipids were separated by TLC.

[pharmacological action] 10% leaf extract has diuretic effect on rabbits, but has no effect on ash.

[function and indications] Nanning medicine records: "stop bleeding, relieve pain, eliminate blood stasis and disperse swelling. Treatment of traumatic injuries. "

[usage and dosage] external use: tamping.