Reproductive capacity of the invasive species of Fraxinus pennsylvanica in comparison with native species of Fraxinus excelsior : [poster]

Abstract

Fraxinus pennsylvanica (green ash) is a dioecious species which was introduced to Europe around 1780. In Poland, it was recorded for the first time in 1817 in Niedźwiedź near Krakow. This species was planted in forests, parks and gardens in cities for decorative purposes. And from these places, the species began to spread onto unused areas in cities and wastelands (Fragment tekstu).