Grey leaf

Grey leaf

(Handbook of commonly used Chinese herbal medicine of Guangzhou Army)

[synonyms] Shanqing and yelan (Handbook of common Chinese herbal medicine of Guangzhou Army).

[source] it is the whole grass of leguminous plant gray leaf.

Grey leaf

Subshrub, 30-60 cm high, base woody. Stem cylindrical, suberect, much branched, young branches densely pilose. Leaves alternate, odd pinnate compound leaves, leaflets 9-17; leaflets narrowly oblanceolate, about 2 cm long, about 0.5 cm wide, apex obtuse or slightly concave and small sharp, lateral veins numerous and dense, with short silky hairs with luster below; stipules linear conic. Raceme terminal or opposite to leaves; calyx teeth longer than calyx tube, lobes triangular conic; corolla lavender, flagellum covered with silky hairs. Pods 5 cm long, slightly curved, glabrous or sparsely hairy, with 6-10 seeds. The flowering period is July.

Born in the village, roadside, wilderness, Riverside grass. Distributed in Guangdong, Guangxi, Yunnan, Fujian, Taiwan and other places.

The root of this plant (Grifola frondosa) is also used for medicine. Please refer to the special section for details.

[collection] all year round.

[chemical constituents] the leaves contain quercetin glucoside.

[pharmacological action] the extract of whole herb has no anti-tumor effect on Schwartz leukemia (ascites type) transplanted into (intraperitoneal injection) mice. The root contains rotenone, so it can be used to poison fish, but its insecticidal effect is quite low.

[nature and taste] the manual of commonly used Chinese herbal medicine published by Guangzhou Army: "slightly bitter, cool. "

[functions and indications] Manual of commonly used Chinese herbal medicine of Guangzhou Army: "clearing heat and eliminating stagnation. Treatment of wind heat, cold, indigestion, eczema, dermatitis. "

[usage and dosage] oral administration: decoction, 0.5-1 Liang. External use: wash with boiling water.