Flowerheads with bunches of 4-5 unbranched spikes, spikelets 1-flowered with conspicuous, feathery anthers. Yellowish-green broad, stiff leaves, inrolled or flat. Ligule comprised of a ring of hairs. Spreading, creeping growth habit. Height to 130cm.
Originally considered a valuable species to reclaim coastal mud-flats but once established spreads very rapidly, causing major habitat loss and degradation.
Designated as a significant invasive plant in Ireland:
Managing Invasive Alien species
Common Cord-grass. Timoleague, County Cork. July 2008