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Short communications
262-271Views:24841. Elatine alsinastrum and other floristic records from the Buda Mts (central Hungary)
2. Eleusine indica in the ‘Maros–Körös köze’ region (SE Hungary)
3. The spread of Panicum dichotomiflorum in the North Hungarian Mts; new records from Gyöngyös and Felsőnyárád (NE Hungary)
4. Symphyotrichum ciliatum in the Sajó–Hernád plain (NE Hungary)
5. Alnus incana and Vitis sylvestris in the Által-ér valley (NW Hungary)
6. Contributions to the distribution of Euphorbia prostrata and Euphorbia serpens in Hungary
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Data on alien vascular plant species in Hungary I. (1–6)
65–80Views:1072This is the first in a series of papers by various authors presenting previously unpublished data relevant to the knowledge of alien vascular plants in Hungary. This paper deals with the families Pteridaceae, Brassicaceae, Plantaginaceae, Rosaceae, Ranunculaceae, Fabaceae and Poaceae. It includes new area records and distributional considerations for Cochlearia danica and Plantago coronopus spreading along Hungarian road-network as well as records of Panicum riparium from the Northern Hungarian Mountain range based on field work and herbarium revision. We note the importance of checking the data previously collected as P. capillare. Floristic data of two species not previously recorded in Hungary (Cardamine corymbosa, Ranunculus marginatus) and 3 sporadically occurring alien species (Aphanes australis, Lepidium didymum, Medicago arabica), from garden centres in the Debrecen area were published. A 7-year long survival of a population of Adiantum capillus-veneris in a traditional, abandoned well is also documented between 2017 and 2024. The paper reports that traffic infrastructure can facilitate the spread of Elymus elongatus along roads.
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Three new grass species to the alien flora of Hungary: Paspalum dilatatum, Phalaris aquatica and Panicum schinzii
63–76Views:659In this paper, we present the new occurrence of two grass species previously unknown in the flora of Hungary and one grass species for which we have only one historical record. Panicum schinzii Hack. is an annual species from South Africa, Paspalum dilatatum Poir. is a perennial species originating from South America, and Phalaris aquatica L. is also a perennial taxon native to the Mediterranean. The only well-developed individual of Panicum schinzii was found on a gravel reef of the Rába river in Western Hungary, while the two newly observed perennial grass species appeared in the Great Hungarian Plain: a single individual of Paspalum dilatatum was observed in a suburban environment on the southern edge of the town of Soltvadkert, while a small population of Phalaris aquatica occurs along a highway near Szeged. In this paper, we describe the European distribution and habitat preference of these three species, we assess their invasion potential and we fit them into the Hungarian dichotomous key of vascular plants. Although we cannot state with certainty that the specimens of Panicum schinzii, Paspalum dilatatum and Phalaris aquatica we report here are the first ones that have ever appeared in Hungary, but their localities and the numbers of individuals suggest that they have entered the country very recently. The annual Panicum schinzii certainly arrived to Hungary naturally by the river Rába, while the perennial Paspalum dilatatum and Phalaris aquatica are more likely to have been introduced by human activities, but both inadvertently. Paspalum dilatatum arrived to its site near Soltvadkert by accident, in the form of propagules in some intentionally sown seed mixture. The fact that all three species are considered in some countries to be invasive or at least problematic species is a cause for concern.