Many species of the so-called exotic plants coexist with native in a balanced way, but others thrive very quickly and escape human control, becoming harmful—these are called invasive alien species. In addition to overcoming geographic barriers, these can defeat biotic abiotic maintaining stable populations. Ailanthus altissima is no exception; it disseminated worldwide considered high risk due ...

The paper presents the floristic diversity of left bank Danube and canal network Krnjaca Borca settlements, as well factors that endanger it. 216 autochthonous allochthonous plant species were recorded in investigated area. A large number invasive have been observed spread rapidly easily forming stable populations displace native plants. Some them are: Amorpha fruticosa L., Robinia pseudoacacia...