The work is focused on the research of the forest ecosystems in the Kujavy forest on the neogene volcanic rocks of the Slanské vrchy. The aim is the inventory of flora and documentation of the identified forest communities by phytosociological records. We started the field research in 2018. During the research, we developed a brief description of the stands, made 6 phytosociological records, wrote down a list of found species and measured differences in the air temperatures. There were 85 species of the vascular plants and 38 species of the bryophytes. At the bottom of the crater we confirmed the cold microclimate by measuring the temperatures, thanks to which spruce stands occur naturally at an altitude of 750 m. In the spruce undergrowth were dominated by the acidophilic oligotropic species and many bryophytes. On the slope, we documented a maple-beech stand. The herbal undergrowth was almost absent. Under the ridge was a rubble ash-maple stand. In his underpinning were nitrophilous and beech species. On the ridge, we documented a beech stand with grassy undergrowth of Poa nemoralis. The species diversity was the largest in the area of phytosociological registration no. 1. In the investigated area, we have found species of plants characteristic for the natural forests. To conclude, there is no known botanical research in the Kujava forest and there is very little data about it, so we recommend monitoring it in the future.