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,
Fagus sylvatica in the buds. In autumn, the tree builds the reserves that will sustain it into spring. Given good conditions, a bud can produce a shoot with up to ten or more leaves. The terminal bud emits a hormonal substance in the spring that halts the development of additional buds. This tendency, though very strong at the beginning of their existence, becomes weaker in older trees. It is only after the budding that root growth of the year begins. The first roots to appear are very thin (with a diameter of less than 0.5 mm). Later, after a wave of above