An extinct water-lily, Euryale limburgensis, belongs to a monotypic genus now confined to Assam and China; an extinct sedge, Dulichium vespiforme, belongs to a genus only living in America, though the only living species once flourished also in Denmark; an extinct species of water-aloe (Stratiotes elegans) makes a third genus, represented only by a single living species, which was evidently better represented in Pliocene times.
Behind these are areas of sedge dominated fen which can often be species rich.
Uncommon plants such as saw sedge, greater meadow rue and marsh valerian are found in the meadow.
In the typical rushy grassland sedges are sparse, but in the more diverse areas glaucous sedge is prominent.
Sedge fen - low nutrients, high diversity Saw sedge fen - low nutrients, high diversity Saw sedge is the main plant species in these areas.
