Zbrašov aragonite caves and brown rankers. The surface of the protected area is mostly forest canopy cover, which has a near-natural tree composition. There is growing mixed forest consisting of winter oak ("Quercus petraea"), beech ("Fagus sylvatica"), common hornbeam ("Carpinus betulus"), sycamore ("Acer pseudoplatanus"), spruce ash ("Fraxinus excelsio"), maple ("Acer platanoides"), small-leaved lime ("Tilia cordata"), sometimes Norway spruce ("Picea abies") and silver fir ("Abies alba"). Occasionally there are a few mountain elms ("Ulmus glabra"). In the past, these forests were negatively affected by forest management, such as logging and the subsequent planting in favor of spruce trees. In the future, these negative effects
Nyssa sylvatica long stalk and a rich source or nectar for bees. They are often dioecious so a male and female tree in proximity is required to set seed, however, many trees are also polygamo-dioecious, which means they have both male and female flowers on the same tree. The fruit is a black-blue, ovoid stone fruit, about 10 mm long with a thin, oily, bitter-to-sour tasting flesh and very popular with small bird species. There are from one to three fruits together on a long slender stalk. They are a valuable energy food for birds, especially the American robin. "Nyssa sylvatica" forms