One leaf silver grass
(records of yam planting in Tianmu, Zhejiang)
[alias] ye Quzhu, Xiao Li Hao, Hua Sao Tiao, Ma Sao ya, Xiao Ziquan, ye Xiazhu (Chinese medicinal plant records), Gou tongtiao (northeast woody plant records), eight Ye Xiazhu (Zhejiang Tianmu Shanyao Tanzhi), Shan Chutiao (Jilin Chinese herbal medicine).
[source] it is the tender branches, leaves and roots of Euphorbiaceae.
[plant morphology] silvergrass
Shrub, 1-3 m high. The root is light reddish brown, with punctate protuberances and long transverse lenticels. Bark light gray brown, more irregular longitudinal crack. The stem has many branches, and the new branches of that year are yellowish green, slightly angular. Leaves alternate, elliptic, oblong or ovate oblong, 1.5-5 cm long and 1-2 cm wide, apex short pointed or obtuse, base cuneate, entire or irregularly lanceolate or finely obtuse, glabrous on both sides; petiole short. Flowers small, unisexual, dioecious, apetalless, male flowers clustered in leaf axils every 3-12; sepals 5, ovate; male flower disk glands 5, separated, 2-lobed, alternate with sepals; degenerate ovary small, cylindrical, 2-lobed; female flowers solitary, or 2-3-clustered, disk entire, ovary 3-locular, style 3-lobed. Capsule triangular oblate, ca. 5 mm in diam., reddish brown, glabrous, 3-valved. The flowering period is from July to August. The fruit period is from September to October.
It grows in the thickets on the hillside and towards the sun. Distributed in Northeast, North China, East China and Hunan, Henan, Shaanxi, Sichuan and other places.
[collection] young shoots and leaves can be harvested from late spring to late autumn. Green shoots with leaves can be cut, tied into small bundles and dried in the shade. Roots can be harvested all year round to remove sediment, wash, slice and dry in the sun.
[herbal medicine] twigs are cylindrical, slightly angular, about 30-40 cm long and 2 mm in diameter. Surface dark green yellow, sometimes slightly red, with longitudinal fine texture. It is crisp, fibrous around the section and white in the center. The leaves are wrinkled and broken, with yellow flowers or gray black fruits. The taste is pungent and bitter.
Roots irregularly branched, cylindrical, surface reddish brown, with fine longitudinal wrinkles, sparsely raised dots or transverse lenticels. It is brittle with irregular section. The xylem is yellowish white. Weak Qi, light taste, astringent.
[chemical constituents] the content of monophylline in leaves is the highest during flowering and the lowest during fruiting, and the content in dry leaves is generally 0.2-0.3%. The content of monophylline in young stems and mature fruits was lower than that in leaves. The leaves contain irutin (1.32%), tannin, a small amount of allosecurine, dihydroseurine and three kinds of alcohol: soeurinola, B and C.
The root contains a large amount of allophylline (o.42%), a small amount of allophylline and allophylline.
The oil content of seeds was 7.13%.
[toxicity] monophylline poisoning can cause spinal cord convulsions, but it is weaker than strychnine. The number of cat convulsions caused by monophylline is about 10.5 times that of strychnine, and the amount of death caused by monophylline is about 100 times that of strychnine. The median lethal dose was 6.3 mg / kg by intravenous injection in mice, 25 mg / kg by intraperitoneal injection and 41 mg / kg by intraperitoneal injection in rats. It is also said that the median lethal dose of intravenous injection in mice is 3.5 mg / kg. The toxicity of skf525-a or CCl4 to the liver of mice increased. The excitatory effect and toxicity (median lethal dose) of dihydromonophylline on the central nervous system of mice were twice as strong as monophylline. The growth, development, liver and kidney functions and red blood cells of the animals were not affected by the continuous administration of monophylline nitrate for a long time.
It's hard, warm and poisonous.
"Hunan medicine annals": "Gan Wei Xin, Wen. "
Functions and indications: promoting blood circulation and relaxing tendons, strengthening spleen and kidney. Treatment of rheumatism, lumbago, numbness of limbs, hemiplegia, impotence, facial paralysis, poliomyelitis sequelae.
① "Guangxi medical plant directory": "treating women's leucorrhea. "
② "Hunan medicine annals": "tonifying the kidney and strengthening yang, strengthening muscles and bones, dredging blood vessels. "
[usage and dosage] oral: decoction, 3-5 yuan.
[selection] 1. To treat infantile malnutrition: five to six coins for the root of one leaf silver grass, five to six coins for each of ziqingteng (namely rhamniaceae Guling gouer tea), baimagu root (namely Rubiaceae junyuexue), yegangzi root (namely loganaceae zuichui), backpressure thorn root or stem (namely Leguminosae Yunshi), 14 fried black beans (half cooked) and five red dates. Decoct in water, make brown sugar, take it on an empty stomach in the morning and evening. (records of yam planting in Tianmu, Zhejiang)
② Cure impotence: one leaf silver grass root five to six money. Take it in water. (Hunan medical records)
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