This is a creeping perennial which is abundant throughout Ireland. It trails its stems across damp, grassy places, rooting regularly. It has yellow 5-petalled flowers (15-20mm across) which are borne solitarily on long, slender stalks from May to August. There are no prizes for guessing why Silverweed got its name - just look at the lovely silky, downy leaves which form large patches. They are pinnate, divided into numerous sharply-toothed alternate leaflets with the underside being more silvery than the upper. This is a native wildflower which belongs to the family Rosaceae.
My first record of this plant is from the Vartry Reservoir in Co Wicklow in 1976 and I photographed it at Tacumshane Lake, Co Wexford in 2008.
If you are satisfied you have correctly identified this plant, please submit your sighting to the National Biodiversity Data Centre