Reed beds at Slapton Ley
a national nature reserve area
photo by Nigel Chadwick
A German roofer building a reed roof
Reed is the general botanical term used for tall, grass-like plants of wet places. They occur in reed beds. They are all members of the order Poales.
Reeds are a whole collection of polyphyletic species, which have all adapted to this wet habitat by convergent evolution.