Usable part of the herb - the fruit of the hazel (Fructus Coryli avcllanae), bark (Cortex Coryli avellanac) and leaves (Folia Coryli avellanac).
Description. Large shrub, sometimes small tree hazel reaching five meters in height. The stem has a reddish or ash-gray smooth bark, covered with numerous minnows. Leaves are consistent back ovate, rounded or rounded-ovate up to 13 cm long and 6-10 cm broad, suddenly narrowed to the top and tapered at the base heart-shaped, sharp edge incorrectly double scalpered. The flowers of hazel are unisexual. Male flowers are arranged in up to 8 cm long pendulous catkins gathered in groups of 2-4. Female flowers are arranged in two small nodular formations from which during flowering are fed only red stigmas. The fruit is dry, not burst hazelnut. Blooms from February to April.
Distribution. Hazel grows among bushes and undergrowth as deciduous forests, especially in the outskirts of forests, glades and clearings throughout the country up to 1800 m altitude.
Drugs. For therapeutic purposes is the fruit of the hazel (Fructus Coryli avcllanae), bark (Cortex Coryli avellanac) and leaves (Folia Coryli avellanac).
Chemical composition. Fruits contain 62% fatty oil, 17% protein, 7% carbohydrates and 2% minerals, vitamins (B, B2, C, E and D). Fats obtained from hazel nuts, contain lipotropic agents (methionine, choline, lecithin) and unsaturated fatty acids with a beneficial effect in the treatment of atherosclerosis. The bark contains essential oil to 10% tannins and others. The leaves contain essential oils and glycosides miritsitrozid.
Action and use. The leaves and bark of hazel are used for inflammation of the urinary tract, to enhance the tone of the venous blood vessels and capillaries and reduce the permeability of the capillary walls. In folk medicine are used in capillary bleeding, varicose veins, varicose ulcers and others. The leaves of the hazel applied in inflammation and bleeding ventsite, in peptic ulcer disease in hypertrophy of the prostate gland. Experimentally determined hazel favorable effect on ulcers.
Usage. Apply in the form of infusion of the leaves and decoction of the bark of hazel. The daily dose is 1 tablespoon herb to 150 ml. water.