Walking Fern
Wall Hawkweed
Wall-lettuce
Wallflower
Wallrue
Walnut
Wartycabbage
Water Arum
Water Chestnut
Water Foxtail
Water Hemlock
Water Horsetail
Water Knotweed
Water Mint
Water Plantain
Water Pygmyweed
Water Sedge
Water Smartweed
Water Speedwell
Water-starwort
Water-willow
Waterawlwort
Watercress
Waterhorehound
Waterleaf
Waterlily
Watermeal
Watermelon
Watermilfoil
Waternymph
Waterparsnip
Watershield
Waterthread Pondweed
Waterweed
Waterwort
Wavy Hairgrass
Wavyleaf Aster
Waxflower Shinleaf
Waxweed
Waxyfruit Hawthorn
Wayfaringtree
Weakstalk Bulrush
Wedgescale
Weeping Alkaligrass