Jose B. Ruiz / Arty-shot of Cotton grass blowing in wind, in a meadow, Picos de Europa, Spain.

Nick Upton / Dense stand of Fen ragwort (Senecio paludosus) flowering among rushes (Juncus sp) in marshland left by shrinking waters of Lake Cerknica, Slovenia, July 2011

Nick Upton / Partially harvested marshland vegetation including Fen ragwort (Senecio paludosus) and rushes (Juncus sp) on margins of shrunken Lake Cerknica, Slovenia, July 2011

Steve Nicholls / Field wood rush (Luzula campestris) flowering in meadowland, Gwent, Wales, UK, April

Jose B. Ruiz / Sharp pointed rush (Juncus acutus), Alicante, Spain