This is a dense growing, blue-green grass with broad leaves and tall flower spikes. The spikes consist of many overlapping, flattened spikelets. Perennial. Plant height 1.5m. Flower size 35cm long.
Flowers July to August. Found on the coast in sand dunes and upper beaches. It is a primary sand dune builder. Common and widespread on the east coast of Britain, scarce elsewhere.
Photographs of Lyme-grass (Leymus arenarius), taken June 2012, Llandudno, Wales. © Pete Hillman 2012. Camera used Nikon Coolpix P500.