Yam
Yankee Blackberry
Yarrow
Yellow Avens
Yellow Birch
Yellow Coralroot
Yellow Daylily
Yellow Floatingheart
Yellow Foxtail
Yellow Fringed Orchid
Yellow Hornpoppy
Yellow Loosestrife
Yellow Marsh Marigold
Yellow Mignonette
Yellow Nutsedge
Yellow Pimpernel
Yellow Pond-lily
Yellow Rattle
Yellow Salsify
Yellow Screwstem
Yellow Sedge
Yellow Spring Bedstraw
Yellow Star-thistle
Yellow Thistle
Yellow Water Buttercup
Yellow Widelip Orchid
Yellowcress
Yelloweyed Grass
Yellowfruit Horse-gentian
Yellowfruit Sedge
Yellowhead
Yellowrocket
Yellowseed False Pimpernel
Yellowwood
Yew
Yucca