“…Bijeljina is a crossroads that connects large cities, which contributes to increasing the number of non-native fl ora. Out of 50 invasive species in Bosnia and Herzegovina (Maslo, 2016) in the area of Bijeljina, the presence of 28 plants was recorded, and these are: Abutilon theophrasti, Acer negundo, Amaranthus retrofl exus, Ambrosia artemisifolia, Amorpha fruticosa, Artemisia annua, Asclepias syriaca, Matricaria discoidea, Erigeron canadensis, Datura stramonium, Echinocystis lobata, Erigeron annuus, Galinsoga parvifl ora, Helianthus tuberosus, Impatiens glandulifera, Juncus tenuis, Panicum capillare, Parthenocissus quinquefolia, Phytolacca americana, Reynoutria japonica, Robinia pseudoacacia, Rudbeckia laciniata, Solidago canadensis, Solidago gigantea, Sorghum halepense, Veronica persica, Xanthium orientale subsp. italicum and Xanthium spinosum.…”