K7b - Acidofrequent oak-hornbeam woodlands:
Only 9% of its area is endangered by plant invasion. Black locust (Robinia pseudoacacia) and goldenrod species (Solidago spp.) are the most frequent invasive plants, but fortunately, even they threat only few portions of stands.
Botta-Dukát Z. (2008): Invasion of alien species to Hungarian (semi-)natural habitats Acta Botanica Hungarica 50(Suppl.): 219-227. >>> letöltés (139 KB, PDF)