Vegetation of the Czech Republic
Butometum umbellati Philippi 1973
Vegetation dominated by Butomus umbellatus occurs in fishponds, fish storage ponds, water reservoirs, small streams and lentic sections of large rivers. In cooler areas it is more abundant in still water bodies, while in warmer areas it occurs mainly in streams. However, these stands are rarely extensive along rivers with regulated water flow. Water table usually fluctuates, and if not, B. umbellatus-dominated vegetation becomes overgrown by stands of tall reed species. This association occurs at scattered sites in lowlands and colline areas across the Czech Republic.
Orig. (Philippi 1973): Butometum umbellati Konczak 1968
Syn.: Butomus umbellatus-Gesellschaft Konczak 1968 (§ 3c)
Diagnostic species: Butomus umbellatus
Constant species: Butomus umbellatus, Lemna minor
Dominant species: Butomus umbellatus
Formal definition: Butomus umbellatus cover > 25 % NOT Phragmites australis cover > 25 % NOT Sparganium emersum cover > 50 % NOT Sparganium erectum cover > 25 % NOT Typha latifolia cover > 25 %
Source: Hroudová Z. & Šumberová K. (2011): MCC10 Butometum umbellati Philippi 1973. 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. 477-480.