The Pieniny national park is characterised by the distribution of the vegetation over several altitude vegetation tiers. The nature of the whole Zamagurie region has been heavily changed by humans, e.g. the basins have been deforested. Before the deforestation, the basins and furrows were covered by beech forests, which no longer grow in the Tatras with a small exception of the Belianske Tatry reforestation project. The Pieniny national park is rich in rare varieties of plants, including endemites and subspecies, e.g. Chrysanthemum zawadzkii, Taraxacum pieninicum and Libanotis montana sibirica.