FW3L Glyceria maxima swamp
Vegetation
The tall shoots of Glyceria maxima strongly dominate this emergent swamp community forming dense stands. No other species are constants but frequently found here are Agrostis stolonifera, Epilobium hirsutum and Iris pseudacorus.
Ecology
These stands occur in the lowlands along the margins of lakes, ditches and canals.
Sub-communities
No sub-communities are currently described.
Similar communities
This is a distinct community which should be easily recognised.
Conservation value
This is a species-poor plant community but it can support the EU HD Annex II species Desmoulin’s whorl snail (Vertigo moulinsiana).
Management
These swamp stands are essentially unmanaged. The main threats to them are through eutrophication and drainage.