This review of the work on Alisma gramineum carried out under English Nature’s Species Recovery Programme and the UK BAP, covers the period from 1991 to 2005. It is a collation and summary of information contained in contract reports produced by ITE, Terry Wells and Tim Pankhurst. In addition, it draws on the draft ecological profile of the species produced by Tim Pankhurst and Richard Lansdown. The review also includes information obtained from site managers in English Nature and the Welland and Nene Internal Drainage Board.