Yellow iris  (Iris pseudacorus)

Found throughout Britain, becoming absent on high ground in Scotland (3). It also occurs throughout much of the rest of Europe, as well as North Africa, Western Asia and the Caucasus region of south west Russia (2). Yellow iris has become widely naturalised outside of its original range, as it is so popular in gardens (3).

Common in wet habitats including wet meadows, wet woods, fens, wet dune-slacks, and the edges of watercourses, lakes and ponds. In the north and west of Britain it may also be found alongside coastal streams, on raised beaches, saltmarsh and shingle. It has in many cases been planted in the wild and escaped from gardens (3).