Drained ash swamp (Veratro albi-Fraxinetum angustifoliae), a new association in the Nyírség, NE Hungary

Kevey, B. and Papp, L. and Lendvai, G. (2019) Drained ash swamp (Veratro albi-Fraxinetum angustifoliae), a new association in the Nyírség, NE Hungary. Acta Botanica Hungarica, 61 (1-2). pp. 55-99. ISSN 0236-6495

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Abstract

This paper presents the phytosociological description of a drained swamp community, Veratro albi-Fraxinetum angustifoliae, so far found only in the Nyírség at Nyírábrány “Kis-kőrises”, “Mogyorósi-erdő”; Vámospércs “Jónásrész-Kőrises”; and Vámospércs “Jónásrész-Buzita”. The habitat of the community is transitional between that of alder swamps (Fraxino pannonicae-Alnetum glutinosae), and hardwood riparian forests (Fraxino pannonicae-Ulmetum). The community is characterised by high proportions of character species of Alnion glutinosae and Molinion coerulei as well as Quercetea pubescentis-petraeae s. l. whereas character species of the order Fagetalia are almost completely absent. It hosts several rare, often threatened species, such as Angelica palustris, Ophioglossum vulgatum, Trollius europaeus and Veratrum album.

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