Abstract

Nutrient‐poor waters with small Utricularia species have been unknown in most of southern Europe and the Balkans. All the more notable are occurrences of Utricularia ochroleuca and Utricularia minor in north Greece. The records presented in this paper extend the known southeast European distribution boundaries of both species southward, and constitute U. ochroleuca a new species to Greece and southern Europe. U. ochroleuca was found in small peaty pools and seepage sites with base‐poor water within subalpine fens and headwaters, U. minor in very shallow base‐containing waters of spring brooks in upper montane ophiolite environments. The plant species composition of the Utricularia vegetation and its habitats are described. The pertinent vegetation types – Utricularietum ochroleucae and Scorpidio‐Utricularietum, respectively, as well as their higher‐ranking syntaxa – are new to Greece and the Balkans. The vegetation with U. ochroleuca forms part of the Annex I habitat type 3160 of the EU Habitats Directive, which is also new to Greece. Nature conservation status and management conditions of the detected plant communities and habitats with Utricularia in northern Greece are discussed.

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