The paper presents vegetation changes of Górki nature reserve in terms of their impact on the main subject of conservation – twinflower Linnaea borealis. The research was conducted between 1969 and 1974 and during this investigation a mixed forest Pino−Quercetum was noted. After 50 years of strict protection the studies were repeated to describe the reserve's flora and vegetation dynamics. A considerable decrease in number is particularly observed in species belonging to Vaccinio−Piceetea class. The main subject of conservation withdrew. Nowadays, vegetation evolved into an oak−hornbeam forest Tilio−Carpinetum betuli. Statistically relevant changes have also been noted as regards the soil acidity and the trophic status of the nature reserve's flora, based on ecological indicators.
Odnaleziono nowe stanowisko zimoziołu północnego Linnaea borealis L. w odległości około 5 km na południowy wschód od Torunia, w regionie kujawsko-pomorskim. Zimoziół północny zajmuje płat około 250 m2 w monokulturze sosnowej, na siedlisku boru mieszanego. Populacja liczy kilkaset pędów wzniesionych.