Botanikai-Természetvédelmi Folyóirat

Journal of Pannonian Botany

Kitaibelia vol. 10 – no. 1. (2005) p.73-87.

A budai Vár fásszárú adventív flórája
Czúcz Bálint
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The non-indigenous woody species in and around the Buda Castle, in the heart of Budapest, has been studied. Due to the area's location and importance, there have been many observations of the anthropogenous flora but no general survey has been accomplished yet. In the study, completed between April and October 2002, data has been collected on all sub-spontaneous woody specimens occurring either on the city walls or at the area encompassed by them. Altogether 67 non-indigenous woody perennials have been recorded in the Buda Castle. Ailanthus altissima has been proved to be the outstandingly most invasive species. The top ten has involved many other common invaders (Morus alba, Robinia pseudoacacia, Celtis occidentalis, Lycium barbarum, Acer negundo). Some otherwise infrequent species, like the regionally native Taxus baccata on the city walls or species which are only spread due to a milder microclimate and the urban heat island (Parthenocissus tricuspidata, Symphoricarpos rivularis and Celtis australis), proved locally invasive. A complete species list is added supplemented with distribution maps.