Kelp
Kelps are large brown algae seaweeds that make up the order Laminariales. There are about 30 different genera.
Đerdap national park
Some 1,100 plant species inhabit the park. The include Tertiary relicts like Turkish hazel, walnut tree, European yew, largeleaf linden, downy oak and European holly. The Đerdap's tulip ("Tulipa hungarica Borbás"), became extinct after the reservoir was formed. Out of 15 species which can be found only on the Balkans are Pančić's maple and certain species of heartsease, wild thyme and meadow fescue. There are also Carpathian endemites like sweet carrot and "Seseli rigidum". Internationally protected are floating fern, "Fritillaria degeniana", water caltrop, "Bulbophyllum loroglossum" and cat grass.