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Corydalis marschalliana (Pallas ex. Willd.) Pers. (Fumariaceae) in the East of the Donbass region

The results of studies of Corydalis marschalliana (Pallas ex. Willd.) Pers. in the Easten part of the Donbass (Lugask and Donetsk regions) are provided in the research. The fact that in the Easten part of Donbass region C. marschalliana grows in 60 locations (33 locations are in the Lugansk region and 27 ones are in the Donetsk region) was established. 19 of them were discovered by the author of the research. Environmental conditions in the studied region were described. Corydalis marschalliana biomorphological characteristics, area and growth conditions are given. Environmental history was studied, map charts and species distribution lists on the territory of the Easten part of Donbass region were made. Cenopopulation studies of Corydalis marschalliana were carried out. The article gives the data about studied species protection on the specially protected natural territories of the Easten Part of Donbass region, the ways of possible rational usage of this species are indicated. It was concluded that C. marschalliana does not need personal protection on the territory of the Easten part of Donbass region.