Vegetation of the Czech Republic
Phalaridetum arundinaceae Libbert 1931
The association Phalaridetum arundinaceae includes dense stands of reed canary grass, Phalaris arundinacea, occurring in complexes of marsh vegetation in lowland river floodplains and in the littoral zones of still water bodies. It occurs in shallow depressions, oxbows in an advanced stage of terrestrialization, along ditches with slow-moving water or on the banks of flooded sand pits. In contrast to the association Rorippo-Phalaridetum arundinaceae, habitats of Phalaridetum arundinaceae are flooded longer, remain constantly wet, are not directly affected or disturbed by currents, and grow on fine-grained sand or silt. Strong accumulation of litter contributes to the development of organic soil. This association can also occur in floodplains of middle river courses, where it grows in depressions that are distant from the river channel. In the Czech Republic this vegetation type is common from lowlands to mid-altitudes.
Orig. (Libbert 1931): Phalaridetum arundinaceae
Syn.: Scirpo-Phragmitetum Koch 1926 p. p. (§ 36, nomen ambiguum)
Diagnostic species: Phalaris arundinacea
Constant species: Carex acuta. Galium palustre agg., Lysimachia vulgaris. Lythrum salicaria, Phalaris arundinacea, Poa palustris
Dominant species: Phalaris arundinacea
Formal definition: Phalaris arundinacea cover > 50 % AND (Group Carex acuta OR Group Iris pseudacorus OR Group Lysimachia vulgaris) NOT Group Caltha palustris
Source: Chytrý M. (2011): MCH08 Phalaridetum arundinaceae Libbert 1931. In: Chytrý M. (ed.), Vegetace České republiky. 3. Vodní a mokřadní vegetace [Vegetation of the Czech Republic 3. Aquatic and wetland vegetation]. Academia, Praha, pp. 577-579.