A resource of photos of the flora of Anglesey (unless otherwise stated), North Wales, UK by Hugh Knott - all photos also on Flickr

A Flora of Anglesey, Wales, UK

Viola x intersita [V. riviniana x V. canina] (hybrid of Common Dog-violet x Heath Dog-violet)

The hybrid typically forms these large mounds
Viola tricolor (Wild Pansy)
Viola canina (Heath Dog-violet)
Viola reichenbachiana (Early Dog-violet)
Viola riviniana (Common Dog-violet)
Viola riviniana (Common Dog-violet)

Llaniestyn Common SSSI
Viola reichenbachiana (Early Dog-violet)

Woodland near Benllech
Viola riviniana (Common Dog-violet)
Viola palustris (Marsh Violet)

Artificial lighting Tywyn Trewan COmmon, adjacent to RAF Valley
Viola palustris (Marsh Violet)

Natural lighting Tywyn Trewan COmmon, adjacent to RAF Valley
Viola lactea (Pale Dog-violet)

Llanddonna Common
Viola palustris (Marsh Violet)

Mynydd Bodafon
Viola canina (Heath Dog-violet)

Tywyn Trewan Common, adjacent to RAF Valley
Viola canina (Heath Dog-violet)

Tywyn Trewan Common, adjacent to RAF Valley
Veronica montana (Wood Speedwell)
Veronica montana (Wood Speedwell)
Veronica arvensis (Wall Speedwell)
Veronica hederifolia ssp lucorum (Ivy-leaved Speedwell)

Small pale flowers and pale anthers distinguish from ssp hederfolia, which has larger white/blue flowers and blue anthers
Veronica filiformis (Slender Speedwell)
Veronica officinalis (Heath Speedwell)
Veronica scutellata (Marsh Speedwell)