The name: occurs from the Arabian word ' doronish ' — names of an unknown poisonous plant. In some areas of Russia it name козульником.
It is known about 40 kinds extended in mountains of moderate areas of Europe, Asia and the North America. Perennial plants. Stalks simple or маловетвистые. The bottom leaves are collected in the radical socket on Long черешках; stem — it is frequent стеблеобъемлющие, are located in the next order. An inflorescence — a basket, usually single, on thin, almost безлистном цветоносе, sometimes on 2-6 in щитковидном an inflorescence. Regional цветки язычковые, yellow, middle — tubular, yellow. Семянки smooth or hairy, oblong. In 1 г more than 6000 seeds. Всхожесть 1—2 years remain.