Rowan, Mountain Ash (Sorbus, Aronia), fam. Rosaceae.
   There are several species in the city and in the forest: Black Chokeberry (Aronia), Checkertree and Common Rowan or Mountain Ash.
   Black Chokeberry (Aronia melanocarpa).
   The fruits contain up to 10% sugars (mostly glucose and fructose) and sorbitol, a cyclic alcohol. They are rich in vitamin P (on average 2000 mg%, there are reports about even 6500 mg%), also contain carotene, vitamins of B group, C (up to 100 mg%), E, PP. The total content of anthocyanin pigments in ripe fruits reaches 6.4%. Black Chokeberry is notable for a large variety of microelements — there is boron, fluorine, iodint compounds (6—10 mcg per 100 g of ripe fruit), iron, copper, manganese, molybdenum. The fruits also contain pectin and tannin substances, making them astringent, and the glycoside amygdalin (harmful in large doses).
   Black Chokeberry normalizes blood coagulation, promotes lowering arterial pressure in people with hypertension, stimulates bile secretion and the activity of stomach enzymes.

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