Stout, reed-like, often forming large stands. Erect stems to 3m.
Loose flowerheads with clusters of dark-brown spikelets.
Smooth, cylindrical, green stems with few leaves. Creeping rhizomes.
Very frequent in shallow water at the edges of lakes, rivers, canals.
Similar: Grey Club-rush, S. tabernaemontani.
Frequent in coastal brackish water.