Vegetation Science Group

Department of Botany and Zoology | Faculty of Science | Masaryk University

Vegetation of the Czech Republic

Association VAB02
Utricularietum australis Müller et Görs 1960

Utricularietum australis

Photo on botanickafotogalerie.cz

This vegetation type is dominated by Utricularia australis, a submerged, free-floating bladderwort. It occurs in mesotrophic to naturally eutrophic water bodies such as small fishponds, alluvial pools and oxbows, but it can be also found in flooded sand pits and newly established fishponds. It is scattered across the Czech Republic, with most localities in forested colline areas, which still contain many habitats with clear water.

Nomen mutatum propositum

Orig. (Müller & Görs 1960): Utricularietum neglectae ass. nov.

Syn.: Lemno.Utricularietum neglectae (Müller et Görs 1960) Passarge 1978, Potamo-Utricularietum australis (Müller et Görs 1960) Passarge 1996

Diagnostic species: Utricularia australis

Constant species: Lemna minor, Utricularia australis

Dominant species: Lemna minor, Utricularia australis

Formal definition: Utricularia australis cover > 25 % NOT Bolboschoenus maritimus s. l. cover > 25 % NOT Calamagrostis canescens cover > 25 % NOT Carex acuta cover > 25 % NOT Carex disticha cover > 25 % NOT Carex riparia cover > 25 % NOT Elodea canadensis cover > 25 % NOT Glyceria fluitans cover > 25 % NOT Glyceria maxima cover > 25 % NOT Hydrocharis morsus-ranae cover > 25 % NOT Menyanthes trifoliata cover > 25 % NOT Myriophyllum spicatum cover > 25 % NOT Nuphar pumila cover > 25 % NOT Oenanthe aquatica cover > 25 % NOT Persicaria amphibia cover > 25 % NOT Phragmites australis cover > 25 % NOT Potamogeton natans cover > 25 % NOT Potamogeton trichoides cover > 25 % NOT Salvinia natans cover > 5 % NOT Schoenoplectus lacustris cover > 25 % NOT Scirpus sylvaticus cover > 25 % NOT Sparganium emersum cover > 25 % NOT Sparganium erectum cover > 25 % NOT Sparganium natans cover > 25 % NOT Typha angustifolia cover > 25 % NOT Typha latifolia cover > 25 %

Source: ©umberová K. (2011): VAB02 Utricularietum australis Müller et Görs 1960. In: Chytrı M. (ed.), Vegetace Èeské republiky. 3. Vodní a mokøadní vegetace [Vegetation of the Czech Republic 3. Aquatic and wetland vegetation]. Academia, Praha, pp. 82-86.