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Natura Croatica Issue number: Natura Croatica, Vol. 31 No.2

Rudbeckia triloba L. (Asteraceae) – new (?) alien species in the flora of Croatia

Authors: Antun Alegro, Vedran Šegota, Ljiljana Borovečki-Voska, Jasenka Topić, Anja Rimac

Authors and affiliation

  • Antun Alegro University of Zagreb, Faculty of Science, Department of Biology, Division of Botany, Marulićev trg 20/II, 10000 Zagreb, Croatia
  • Vedran Šegota University of Zagreb, Faculty of Science, Department of Biology, Division of Botany, Marulićev trg 20/II, 10000 Zagreb, Croatia
  • Ljiljana Borovečki-Voska Tuhelj 53, 49215 Tuhelj, Croatia
  • Jasenka Topić Đure Sudete 5, 10360 Sesvete, Croatia
  • Anja Rimac University of Zagreb, Faculty of Science, Department of Biology, Division of Botany, Marulićev trg 20/II, 10000 Zagreb, Croatia

Abstract

During the summer of 2022 Rudbeckia triloba L. was recorded outside cultivation at four localities in the inland part of Croatia (Korana Selo, Vukova Gorica, Vugrovec and Slivonja Jarek) growing in anthropogenic habitats. This species, native to North America, was introduced to Europe as an ornamental and in several European countries is spreading mostly as garden escapee. The time of introduction into Croatia is not known. It can be considered a casual alien or a garden escapee ephemerophyte with an as yet unknown invasive potential.

Keywords

ephemerophyte, garden escapee, SE Europe

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