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Contributo alla conoscenza della vegetazione del fiume Pesa (Toscana, Italia centrale).

Studia Botanica 0211-9714 01/2012; 29:105-143.

ABSTRACT The hygrophilous vegetation of Pesa river in Tuscany (Central Italy) is described according to the phytosociological method. The survey shows the presence of 23 vegetation types belonging to the following classes: Potametea, Bidentetea tripartitae, Isoëto-Nanojuncetea, Phragmito-Magnocaricetea, Artemisietea vulgaris, Galio-Urticetea, Molinio-Arrhenatheretea, Salici purpureae-Populetea nigrae. In spite of the anthropic alteration observed along several stretches of the river, the study highlights the presence of high valuable vegetation types referable to 10 habitat of European Community importance.

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