[2] The latter can be subdivided (depending on soil, climate, and altitude) into regions dominated by the Norway Spruce, European Beech, and various species of Oak,[2] together with less widespread vegetation types such as the Dinaric calcareous block fir forest.
[3] Vegetation in the marshland is dominated by reeds, with Willow, Poplar, Alder, and Oak on the higher ground.
[3] In 1991, this area became part of the UNESCO list of World Heritage Sites.
[4] The meadow-steppe grassland areas of Romania are also species-rich, but endangered.
[5] Among the flora of Romania are medicinal plants such as Arnica montana, Primula veris, Tussilago farfara, and Atropa belladonna.