application/pdf 1075917 bytes All rights reserved Jotić, Branko Stojiljković, B. Jenačković-Gocić, Dragana Stojanović, J. Marković, Marija Zlatković, Bojan Abstract: The urban flora of Serbia has been the subject of several studies in the past. However, previous research has mainly covered larger cities. The results of a systematic floristic investigation of the urban habitats of southeastern Serbia, which began in 2024, indicate an interesting floristic composition not only in large human settlements, but also in the ruderal habitats along the infrastructure of facilities. This especially applies to synanthropic, often invasive species spreading from the southern parts of the Balkan Peninsula toward Central Europe. New chorological data on three vascular plants in the Serbian flora have been reported. Pterocephalus plumosus (L.) Coult was discovered along the railway line in the City of Niš, which is probably the northernmost occurrence of this species in Serbia. The insufficiently known distribution of Rubia tinctorum L. is contributed by a new locality beside the road in the Municipality of Crveni Krst in the same city. Finally, Dysphania pumilio (R. Br.) Mosyakin & Clemants, known only for the valley of the Pčinja River in Serbia, was discovered in the urban habitats in the City of Vranje. The distribution extensions of these three taxa should be considered a noteworthy contribution to the flora of Serbia. eng New data for the flora of Serbia "Department of Biology and Ecology, Faculty of Sciences and Mathematics, University of Niš Institute for Nature Conservation of Serbia Science Technology Park Niš" info:eu-repo/semantics/conferenceProceedings https://unilib.phaidrabg.rs/o:8791 ISBN: 978-86-6275-176-8 " ABSTRACTS - 15th Symposium on the Flora of Southeastern Serbia and Neighboring Regions Niš, 23th to 25th May, 2025" startpage: 69 endpage: 69 2025