Iberian Knapweed
Iceplant
Idaho Bentgrass
Idaho Blue-eyed Grass
Idaho Buttercup
Idaho Fescue
Idaho Gumweed
Idahoa
Idria Buckwheat
Illinois Pondweed
Illyrian Cottonthistle
Imbricate Phacelia
Incense Cedar
Incense Cedar Mistletoe
Inchhigh Lupine
Indian Biscuitroot
Indian Blanket
Indian Breadroot
Indian Goosegrass
Indian Headdress
Indian Hedgemustard
Indian Jujube
Indian Knob Mountainbalm
Indian Lovegrass
Indian Mallow
Indian Manzanita
Indian Paintbrush
Indian Pink
Indian Plum
Indian Potato
Indian Rhubarb
Indian Ricegrass
Indian Rushpea
Indian Springparsley
Indian Strawberry
Indian Teasel
Indian Tobacco
Indian Toothcup
Indian Valley Brodiaea
Indian Valley Spinycape
Indian Warrior
Indianhemp
Indianpipe
Indiantree Spurge