FW3D Schoenoplectus lacustris swamp
Vegetation
This is species-poor swamp community in which Schoenoplectus lacustris typically dominates, forming dense beds. No other species is frequent. Phragmites australis occurs occasionally and can be abundant, less often the beds will contain some stems of Equisetum fluviatile or Sparganium erectum. Floating on the water may be found leaves of Nuphar lutea or Potamogeton natans, or perhaps, some Lemna minor.
Ecology
This community has been recorded predominantly from mesotrophic lakes and pools. Less frequently it has been found in oligotrophic lakes and in rivers.
Sub-communities
No sub-communities are currently described.
Similar communities
This community is related to FW2G Schoenoplectus lacustris – Sparganium erectum swamp. In that riverine assemblage, however, Schoenoplectus lacustris is less dominant, and Sparganium erectum, Apium nodiflorum and Phalaris arundinacea are more frequent.
Conservation value
This is a relatively species-poor community (species/4 m2 = 3.8, n = 28). Eriocaulon aquaticum can occur here however and has a strictly limited national distribution.
Management
This community is typically unmanaged, although traditionally some lake beds would have been cut for rushwork. Threats include eutrophication and drainage.