Contribution to the knowledge on the vascular flora of the potentially protected area Duga njiva (Republika Srpska, Bosnia and Herzegovina)

Field research in Duga Njiva was conducted during the growing season of 2023. A total of 372 species and subspecies of vascular plants were found. Compositae, Fabaceae, Lamiaceae, and Poaceae are among the most present families. The percentage supremacy of hemicryptophytes was determined in the biological spectrum of the flora of Duga Njiva. Phytogeographical analysis confirmed the dominance of European-Caucasian, Central European, and Eurasian floristic elements. The presence of six strictly protected and protected species was confirmed in the research area, as follows: Cephalanthera damasonium, Cephalanthera longifolia, Ilex aquifolium, Platanthera bifolia, Ruscus aculeatus, and Ruscus hypoglossum.