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Guyan reagent-Apocynum venetum
Apocynum venetum [Pinyin name] Luó Bù Má Yè [English name] FOLIUM APOCYNI VENETI [Alias] Kenaf, tea flower, red willow, wild hemp, lamb horn, Ze Qi Ma [source] This product is oleander The dry leaves of the plant Apocynum venetum L. Harvest in summer, remove impurities and dry. ã€Properties】 This product is more shrunken and curled, and some are broken. When the complete leaves are flattened, they are oval or ovate-shaped, 2-5cm long, 0.5-2cm wide, light green or gray-green, apex Blunt, with a small awn tip, obtusely rounded or wedge-shaped at the base, with fine teeth at the edges, often revolute, glabrous on both sides, leaf veins protruding from the lower surface; petiole thin, approximately 4 mm long Crisp. Slight gas, light taste. [Identification] The surface view of the product: the upper and lower epidermal cells are polygonal, the vertical wall is straight, and the surface has a granular keratin texture; the stomata are flat-axis. The cross-section of this product: flat epidermal cells and convex outer wall; both sides of the mesophyll have palisade tissue, and there are mostly 2 rows of palisade cells in the upper epidermis and 1 row in the lower epidermis. The cells are extremely short, and the sponge tissue cells have 2 to 4 rows. Contains brown matter; the main veins are vascular bundles of double tough type, with milk tubes scattered around the vascular bundle and phloem. [Sexual taste] Sweet, bitter, cool. ã€Return to Meridian】 Return to Liver Meridian. ã€Functions】 Calm the liver and calm the nerves, clear away heat and water. For liver vertigo, palpitations, insomnia, edema and oliguria; hypertension, neurasthenia, nephritis edema. ã€Usage and dosage】 6 ～ 12g. [Storage] Store in a cool and dry place. [Excerpt] "Chinese Pharmacopoeia"