Wahlenbergia          

Walking Fern          

Wallflower          

Wallrocket          

Wallrue          

Walnut          

Wartremoving Herb          

Warty Panicgrass          

Warty Spurge          

Washerwoman          

Washington Hawthorn      

Water Dawnflower          

Water Hemlock          

Water Hickory      

Water Hyacinth          

Water Knotweed      

Water Locust      

Water Mannagrass          

Water Mint          

Water Oak      

Water Plantain          

Water Pygmyweed          

Water Spangles          

Water Speedwell          

Water Tupelo      

Water-starwort          

Water-willow          

Waterclover          

Watercress          

Watergrass          

Waterhorehound          

Waterhyssop          

Waterleaf          

Waterlily          

Watermeal          

Watermelon          

Watermilfoil          

Watermoss          

Waternymph          

Waterparsnip          

Waterpurslane          

Watershield          

Waterspider Bog Orchid          

Waterthread Pondweed