Apocynum venetum leaves

Apocynum venetum leaves

FoliumApocyniVeneti

Dogbane leaf

[alias] camellia, Euphorbia, wild tea, red root grass.

[source] it is the leaf of Apocynum venetum L.

[plant morphology] subshrub, 1-1.5m high, milky and hairless. Branches purplish red or light red. Leaves opposite, elliptic lanceolate to oblong, 1-8 cm long, 0.5-2.2 cm wide, apex obtuse, with small awn tip, base broadly cuneate, margin inconspicuous serrate. Cyme terminal; calyx 5-lobed, short hairy; corolla pink, purplish red, bell shaped, apex 5-lobed, two faces granular protuberance; corona 5; stamen 5; carpel 2, free. Bony process fruit forked. The top of the seed is tufted with long white hairs. The flowering period is from June to August and the fruiting period is from September to October.

It grows in sandy land of river bank, sandy land of gully, rocky hillside and saline alkali land. It is distributed in Northeast, North and Northwest China.

[harvest] harvest in summer, remove impurities and dry.

[character] most of them are wrinkled and curly, some of them are broken, and the complete ones are oval lanceolate or oval lanceolate, light green or gray green, with fine teeth on the edge, often reversed, and the veins protrude on the lower surface. Petiole thin, about 4mm long. It's crispy. The air is weak and the taste is light.

[chemical constituents] it contains rutin, catechin, anthraquinone, glutamic acid, alanine, valine, potassium chloride, etc.

It is cool in nature, sweet and bitter in taste.

[indications] it can calm the liver and calm the nerves, clear away heat and promote diuresis. Used for liver Yang vertigo, palpitation, insomnia, edema and less urine.

Functions of traditional Chinese medicine: clearing and purging liver fire, calming the liver and calming the wind: used for headache, dizziness, convulsion and convulsion caused by excessive liver fire. This product can reduce blood pressure.

[dosage of traditional Chinese medicine] 3-10 G. Water decocting service; single flavor soaking service instead of tea.