Puszcza Darżlubska is European Beech (Fagus sylvatica) forming thickets with pine and other coniferous trees. The area is covered mainly by coniferous forest in which the dominating tree is beech forming lowland groves. The beech is relatively young in the region. After the retreating glacier and the gradual warming of the climate around c.8,000 BC, the whole area was first covered by tundra. Along with the rise of temperature, the flora of the tundra gave way to new forest ecosystems in which most prominent were birches (Betula), pines (Pinus) and hazel (Corylus). The ecosystem of the primeval forest changed again with additional,
Nyssa sylvatica a large deep taproot when young that makes transplanting difficult. Because of this, it is fairly uncommon in cultivation and the nursery trade. Additional characteristics include: "Nyssa sylvatica" grows in various uplands and in alluvial stream bottoms from southwestern Maine and New York, to extreme southern Ontario, central Michigan, Illinois, and central Missouri, south to southern Florida, eastern Texas, and eastern Oklahoma. It also occurs locally in central and southern Mexico. Optimum development is made on lower slopes and terraces in the Southeastern United States. "Nyssa sylvatica" is found in a variety of upland and wetland habitats in its extensive