Kalmiopsis
Kamchatka Fritillary
Kaweah River Phacelia
Keckiella
Kelloggia
Kenilworth Ivy
Kentucky Bluegrass
Kettle Falls Lupine
King Bladderpod
Kinnikinnick
Kiss Me Over The Garden Gate
Kitchen Sage
Kittentail
Kittentails
Klamath Arnica
Klamath Basin Milkvetch
Klamath Cinquefoil
Klamath Erigeron
Klamath Fawnlily
Klamath Fir Dwarf Mistletoe
Klamath Gooseberry
Klamath Mountain Mahogany
Klamath Plum
Klamath Rockcress
Klamath Rushlily
Klamath Sedge
Knapweed
Kneeling Angelica
Knobcone Pine
Knobcone Pine Dwarf Mistletoe
Knotgrass
Knotsheath Sedge
Knotted Clover
Knotted Hedgeparsley
Knotted Rush
Knotweed
Kudzu