The Target 10 Homepage co-ordinates actions and organisations in understanding and controlling problem species.
Ireland's National Plant
is a response to the
Global Strategy for
This webpage acts as the focal point and clearing-house for progress in implementing this Strategy
National Botanic Gardens Home Page
Last updated 23rd April 2007
As with other invasive aquatics, Fringed Water-lily is a handsome plant, and is being deliberately introduced into an increasing number of waterbodies.
Reynolds (2002) records the species as an occasional escape from cultivation, mainly in the north, and locally established in lakes, ponds and
rivers, and usually spreading from where originally introduced.
After its initial spread in the first half of 19th C in Lough Neagh and the Lagan Canal and river, it suddenly declined in most of its naturalized stations
(Flora of Lough Neagh - Harron 1986; FNE 1992).
Fringed waterlilly is a riparian species, and tends to be confined to water less than ca 1 m in depth. It readily fragments and spreads by floating.
Global Invasive Species Database
National Parks and Wildlife staff are undertaking mapping of the species in Lough Leane to determine the full extent of the infestation.
Known Sites for Nymphoides peltata (based on Reynolds (2002) with additions from Joe Caffrey, BSBI atlas and others:
| Vice-County || Location |
2 || Muckross House harbour, V965865, D.Holyoak 14/5/2005|
Lough Leane (M and P Wyse Jackson 2006)
4 || Caum 1997, two ponds (O’Mahony 1998).|
5 || Near Glanworth 1992, in pond with Lagarosiphon major (O’Mahony 1998).|
Fota Golf Club (Joe Caffrey)
Ballyhonock Lake (Joe Caffrey)
6 || West Waterford Golf Club, Dungarvan|
18 || Birr Castle demesne, N054049, D.Holyoak, 15/8/2005.|
19 || Maynooth Fisheries (Joe Caffrey)|
24 || Royal Canal at Cloondara (Joe Caffrey)|
29 || Carrick on Shannon (Joe Caffrey)|
Roosky (Joe Caffrey)
33 || Cargin Loughs 1990|
Upper Lough Erne 1991 - records made by Northern Ireland Lakes Survey (C. Preston) - source of map records in Preston & Croft (1997).
37 || Lurgan Lough Upper 1990; record made by Northern Ireland Lakes Survey (C. Preston); source of map record in Preston & Croft (1997).|
38 || Watson’s Lough, J308496, 1990; Interlaken Lake near Carryduff (J398648) 1986; Dairy (Derry) Lake, (J370555) 1990 (FNE 1992).|
Ponds at Bloomfield (J372737) 1993 and Tillysburn (J382767), deliberate introductions at both sites (Hackney 1995, FBel 1997).
38/39 || River Lagan 1996, two small patches under Moore’s Bridge (J262629) 1996, S Lisburn (Wolfe-Murphy 1997); River Lagan, 1st Lock (J340713); 2nd Lock (J337699).|
If you have information about any other populations of Nymphoides peltata please notify the following:-
Dr. Joe Caffrey
Senior Scientific Officer,
Central Fisheries Board
Dr Jan-Robert Baars Ph.D.
School of Biology & Environmental Science
121 Research 2-Limnology Unit
School of Biology and Environmental Science
UCD, Belfield, Dublin