• (1) Würgefeige - Wallflower Diuris
• (2) Wallflower Mustard - Warwick Cup Hosta
• (3) Warwick Curtsey Hosta - Water Wheel Daylily
• (4) Water Whorl Grass - Waterlily
• (5) Waterlily - Waterlily Dahlia
• (6) Waterlily Dahlia - Watermelon
• (7) Watermelon - Wavy Bluegrass
• (8) Wavy Cyanea - Wayside War Paint Daylily
• (9) Wayward Ways Daylily - Weißkiefer
• (10) Weißklee - West Indies Cockscomb
• (11) West Indies False-Box - Western Scarlet Gilia
• (12) Western Schistidium Moss - Whipple's Beardtongue
• (13) Whipple's Cholla - White Dutch Clover
• (14) White Dwarf Fan Columbine - White Mountain Ragwort
• (15) White Mountain Saxifrage - White Water Buttercup
• (16) White Water Crowsfoot - Whitemouth Dayflower
• (17) Whitemouth Dayflower - Wiesen-Klee
• (18) Wiesen-Löwenzahn - Wild Hydrangea
• (19) Wild Hydrangea - Wild Sarsaparilla
• (20) Wild Sarsaparilla - William Harris Daylily
• (21) William Henry Krekler Daylily - Winged Fern
• (22) Winged Flax - Winter Squash
• (23) Winter Squash - Witch Alder
• (24) Witch Alder - Wood Sedge
• (25) Wood Shaving Flower - Woolly Leaved Povertyweed Ambrosia Tomentosa
• (26) Woolly Lip Fern - Wright Lipfern
• (27) Wright Lippia - Wyths Rhododendron