Wakerobin/ Red Trillium/ Stinking Willie/ Erect Trillium Trillium erectum Lily
Walnut, American (see Walnut, Black)
Walnut, Black Juglans nigra Walnut
Walnut, Eastern Black (see Walnut, Black)
Walnut, White (see Butternut)
Wapato (see Arrowhead, Broad-leaved/ Duck Potato/ Wapato)
Water Pepper, Common Smartweed Polygonum hydropiper Buckwheat
Water-Hemlock/ Spotted Cowbane Cicuta maculata Parsley
Water-Horehound, Cut-Leaved/ American Bugleweed Lycopus americanus Mint
Water-Lily, Fragrant Nymphaea odorata Water-Lily
Water-Pepper, Mild Polygonum hydropiperoides Buckwheat
Water-Plantain Alisma triviale Arrowhead/Water Plantain
Water-Willow Justicia americana Acanthus
Waterfall hydnum (see Hedgehog coral)
Waterleaf, Appendaged Hydrophyllum appendiculatum Waterleaf
Waterleaf, Broad-Leaved Hydrophyllum canadense Waterleaf
Waterleaf, Virginia Hydrophyllum virginianum Waterleaf
Weeping widow Lachrymaria lacrymabunda Gilled Mushrooms
Whitlow Grass Draba verna Mustard
Willow, Babylon Weeping (see Willow, Weeping)
Willow, brittle (see Willow, crack)
Willow, Chinese (see Willow, Weeping)
Willow, crack Salix fragilis Willow
Willow, Narrow-Leaf (see Willow, Sandbar)
Willow, pussy Salix discolor Willow
Willow, Sandbar Salix interior Willow
Willow, snap (see Willow, crack)
Willow, Weeping Salix babylonica Willow
Willow-Herb, Common/ Purple-Leaved Willow-Herb Epilobium coloratum Evening Primrose
Willow-Herb, Downy Epilobium strictum Evening Primrose
Willow-Herb, Hairy Epilobium hirsutum Evening Primrose
Willow-herb, Northern Epilobium glandulosum Evening Primrose
Willow-Herb, Purple-Leaved Evening Primrose
Windflower (see Rue-Anemone/ Windflower)
Wingstem/ Yellow Ironweed Actinomeris alternifolia Sunflower-Like
Winterbloom (see Witch Hazel, common)
Wintergreen, Spotted/Striped Wintergreen Chimaphila maculata
Wintergreen/ TeaBerry/ Checkerberry Gaultheria procumbens Heath
Witch Hazel, common Hamamelis virginiana Witch-hazel
Witch's butter Tremella mesenterica Crusts And Slimes
Wood-crust, coral Phlebia incarnata Crusts And Slimes
Wood-Mint, Hairy Blephila hirsuta Mint
Wood-Poppy (see Celandine Poppy, Wood Poppy)
Wood-Sorrel, Common Oxalis montana Wood Sorrel
Wood-Sorrel, Large Yellow Oxalis grandis Wood Sorrel
Wood-Sorrel, Upright Yellow Oxalis stricta Wood Sorrel
Wood-Sorrel, Violet Oxalis violacea Wood Sorrel
Wood-Sorrel, Yellow/ Sour Grass Oxalis europaea Wood Sorrel
Woodcrust, gelatinous (see Merulius, trembling)
Woodfern Leatherleaf (see Woodfern, Marginal)
Woodfern, Evergreen (see Woodfern, Marginal)
Woodfern, Marginal Dryopteris marginalis Fern
Woodfern, Spinulose Dryopteris spinulosa Fern
Woodruff Galium odoratum Bedstraw (Madder)
Wool Grass Scirpus pedicellatus Sedge
Woundwort (see Hedge-Nettle, Rough/ Woundwort)
Wrinkled psathyrella (see Artist's crumblecap)
Juglans cineria
Carya cordiformis
Carya glabra
Carya ovata
Juglans nigra
Nymphaea odorata
Hydrophyllum appendiculatum
Hydrophyllum canadense
Hydrophyllum virginianum
Populus grandidentata
Populus tremuloides
Populus deltoides
Populus balsamifera
Populus canescens
Salix fragilis
Salix discolor
Salix interior
Salix babylonica
Monotropa uniflora
Pyrola rotundiflora
Liquidambar styraciflua
Hamamelis virginiana
Oxalis montana
Oxalis grandis
Oxalis stricta
Oxalis violacea
Oxalis europaea