| Carex arenaria | IE, VCH16 West Galway, Renvyle | Robert James Shuttleworth | Robert James Shuttleworth | 6/1832 | E |
| Carex binervis | IE, VCH16 West Galway, Renvyle | | Robert James Shuttleworth | 6/1832 | E |
| Hydrilla verticillata | IE, VCH16 West Galway, Renvyle | Basil Walston Ribbons Robert MacKechnie | Robert MacKechnie | 25/7/1953 | E |
| Hydrilla verticillata | IE, VCH16 West Galway, Renvyle | Robert MacKechnie | Robert MacKechnie | 25/7/1953 | E |
| Hydrilla verticillata | IE, VCH16 West Galway, Renvyle | Olga Margaret Stewart | | 8/9/1991 | E |
| Carex dioica | IE, VCH16 West Galway, Oughterard | John Hutton Balfour | | 7/8/1838 | E |
| Carex lasiocarpa | IE, VCH16 West Galway, Maum | Job Edward Lousley | Job Edward Lousley | 14/6/1937 | E |
| Carex diandra | IE, VCH16 West Galway, Macdara | John Bland Wood | John Bland Wood | 1843 | E |
| Carex binervis | IE, VCH16 West Galway, Maam | | | 13/8/1838 | E |
| Potamogeton natans x gramineus = P. x sparganiifolius | IE, VCH16 West Galway, Maam | | Thomas Kirk | 9/1858 | E |
| Potamogeton natans x gramineus = P. x sparganiifolius | IE, VCH16 West Galway, Maam | | Thomas Kirk | 9/1838 | E |
| Potamogeton natans | IE, VCH16 West Galway, Lough Muck | Clara Winsome Muirhead | | 27/5/1965 | E |
| Carex lasiocarpa | IE, VCH16 West Galway, Lough Craigduff | David Thomson Playfair | Royal Botanic Gardens, Kew David Thomson Playfair | 13/5/1899 | E |
| Potamogeton natans x gramineus = P. x sparganiifolius | IE, VCH16 West Galway, Lough Corrib | | Thomas Kirk | 9/1858 | E |
| Potamogeton natans x gramineus = P. x sparganiifolius | IE, VCH16 West Galway, Lough Corrib | | Thomas Kirk | 9/1858 | E |
| Carex flacca | IE, VCH16 West Galway, Lissoughter | Robert MacKechnie | Robert MacKechnie | 25/7/1953 | E |
| Potamogeton polygonifolius | IE, VCH16 West Galway, Inishbofin | Clara Winsome Muirhead | | 26/5/1965 | E |
| Baldellia ranunculoides | IE, VCH16 West Galway, Galway | William Evans | | 7/1877 | E |
| Carex binervis | IE, VCH16 West Galway, Galway | | John Hutton Balfour | 4/8/1858 | E |
| Carex lasiocarpa | IE, VCH16 West Galway, Galway | | | | E |
| Carex lasiocarpa | IE, VCH16 West Galway, Galway | | John Hutton Balfour | 7/8/1838 | E |
| Triglochin palustris | IE, VCH16 West Galway, Dogs Bay | Peter Hadland Davis | | 2/9/1963 | E |
| Hydrilla verticillata | IE, VCH16 West Galway, Connemara | William Arthur Sledge | Robert MacKechnie William Arthur Sledge | 10/8/1939 | E |
| Carex binervis | IE, VCH16 West Galway, Benbaun | | | 31/8/1837 | E |
| Carex divisa | IE, VCH12 Co. Wexford, River Barrow | L S Glascott | Alexander Somerville | 6/1893 | E |
| Carex strigosa | IE, VCH12 Co. Wexford, Courtown | Edward Shearburn Marshall | Arthur Bennett | 14/6/1897 | E |
| Carex pseudocyperus | IE, VCH9 Co. Clare, Tubber | Patrick Bernard O' Kelly | Alexander Somerville Harry Corbyn Levinge | 6/7/1894 | E |
| Carex pseudocyperus | IE, VCH9 Co. Clare, Kilkishen | John Ball | | 6/1845 | E |
| Carex rostrata | IE, VCH9 Co. Clare, Kilkishen | John Ball | | 6/1845 | E |
| Potamogeton coloratus | IE, VCH9 Co. Clare, Formoyle | Clara Winsome Muirhead | | 24/5/1965 | E |
| Potamogeton coloratus x berchtoldii = P. x lanceolatus | IE, VCH9 Co. Clare, Formoyle | Clara Winsome Muirhead | | 24/5/1965 | E |
| Butomus umbellatus | IE, VCH9 Co. Clare, Ennis | Patrick Bernard O' Kelly | Harry Corbyn Levinge | 6/7/1892 | E |
| Potamogeton coloratus x berchtoldii = P. x lanceolatus | IE, VCH9 Co. Clare, Cahir River | Olga Margaret Stewart | | 5/6/1989 | E |
| Potamogeton coloratus x berchtoldii = P. x lanceolatus | IE, VCH9 Co. Clare, Caher River | George Taylor | The British Museum | 31/8/1952 | E |
| Potamogeton coloratus x berchtoldii = P. x lanceolatus | IE, VCH9 Co. Clare, Caher River | George Claridge Druce | George Claridge Druce | 8/1928 | E |
| Potamogeton coloratus x berchtoldii = P. x lanceolatus | IE, VCH9 Co. Clare, Caher River | Douglas Mackay Henderson | | 7/7/1958 | E |
| Potamogeton coloratus x berchtoldii = P. x lanceolatus | IE, VCH9 Co. Clare, Caher River | Patrick Bernard O' Kelly | Watson Botanical Exchange Club Alexander Somerville David Thomson Playfair | 6/1899 | E |
| Potamogeton coloratus x berchtoldii = P. x lanceolatus | IE, VCH9 Co. Clare, Caher River | William Arthur Sledge | Robert MacKechnie | 10/8/1935 | E |
| Potamogeton coloratus x berchtoldii = P. x lanceolatus | IE, VCH9 Co. Clare, Caher River | Alfred James Wilmott | | 18/6/1925 | E |
| Potamogeton coloratus x berchtoldii = P. x lanceolatus | IE, VCH9 Co. Clare, Caher River | Edward Charles Wallace | Robert MacKechnie | 22/7/1953 | E |