Article

Erigeron sumatrensis (Asteraceae) is reported for the first time for the flora of the Republic of Macedonia. The taxon was recorded in several localities across the country. It seems, the species was introduced several decades ago, however, it remained unrecognized, mainly due to mis-identification with E. bonariensis. Brief morphological description, based on the material collected from Macedonia, and the habitat preferences of the species are provided. Erigeron sumatrensis has viable and persistent populations and should be regarded as naturalized in the Macedonian flora. The invasive behavior of the species is discussed briefly.