Triglochin palustris
Marsh Arrowgrass
Trinia glauca
Honewort
Triphasia trifolia
Limeberry
Tripleurospermum inodorum
Scentless Mayweed
Tripleurospermum maritimum
Sea Mayweed
Tripolium pannonicum
Sea Aster
Tristagma uniflorum
Spring Starflower
Trocdaris verticillata
Whorled Caraway
Trollius europaeus
Globeflower
Tuberaria guttata
Spotted Rock-rose
Tulipa sylvestris
Wild Tulip
Turnera ulmifolia
Yellow Alder
Turritis glabra
Tower Mustard
Tussilago farfara
Colt's-foot
Typha angustifolia
Lesser Bulrush
Typha latifolia
Bulrush
Ulex europaeus
Gorse
Ulex gallii
Western Gorse
Ulmus glabra
Wych Elm
Ulmus minor
Small-leaved Elm
Ulmus minor agg
Small-leaved Elm
Ulmus procera
English Elm
Umbilicus rupestris
Navelwort
Urera caracasana
Flameberry
Urtica dioica
Common Nettle
Urtica urens
Small Nettle
Usnea fragilescens
Utricularia intermedia
Intermediate Bladderwort
Utricularia minor
Lesser Bladderwort
Utricularia vulgaris
Greater Bladderwort
Vaccinium myrtillus
Bilberry
Vaccinium oxycoccos
Cranberry
Vaccinium vitis-idaea
Cowberry
Valeriana dioica
Marsh Valerian
Valeriana officinalis
Common Valerian
Valerianella carinata
Keeled-fruited Cornsalad
Valerianella locusta
Common Cornsalad
Valerianella sp.
Vanda Chryse
Verbascum lychnitis
White Mullein
Verbascum nigrum
Dark Mullein
Verbascum thapsus
Great Mullein
Verbascum virgatum
Twiggy Mullein
Verbena bonariensis
Argentinian Vervain
Verbena officinalis
Vervain
Veronica anagallis-aquatica
Blue Water-Speedwell
Veronica arvensis
Wall Speedwell
Veronica beccabunga
Brooklime
Veronica catenata
Pink Water-Speedwell
Veronica chamaedrys
Germander Speedwell
Veronica filiformis
Slender Speedwell
Veronica hederifolia
Ivy-leaved Speedwell
Veronica montana
Wood Speedwell
Veronica officinalis
Heath Speedwell
Veronica peregrina
American Speedwell
Veronica persica
Common Field-speedwell
Veronica polita
Grey Field-speedwell
Veronica scutellata
Marsh Speedwell
Veronica serpyllifolia
Thyme-leaved Speedwell
Veronica spicata
Spiked Speedwell
Veronicastrum
Vicia cracca
Tufted Vetch
Vicia orobus
Wood Bitter-vetch
Vicia sativa
Narrow-leaved Vetch
Vinca major
Greater Periwinkle
Vincetoxicum hirundinaria
Swallow-wort
Viola arvensis
Field Pansy
Viola cornuta
Horned Pansy
Viola lactea
Pale Dog-violet
Viola lutea
Mountain Pansy