Kaibab Agave
Kaibab Bird's Beak
Kaibab Bladderpod
Kaibab Draba
Kaibab Pincushion Cactus
Kaibab Plateau Beardtongue
Kaibab Plateau Indian Paintbrush
Kaibab Pussytoes
Kaibab Sedge
Kaibab Spinystar
Kaibab Suncup
Kanab Yucca
Kariba-weed
Kaweah River Phacelia
Kearney's Bluestar
Kearney's Snakewood
Kearney's Sumac
Keckiella
Kellogg's Knotweed
Kellogg's Sedge
Kellogg's Spurred Lupine
Kellogg's Tarweed
Kelloggia
Kentucky Bluegrass
Kern Cinquefoil
Key West Heliotrope
Keyflower
Kidneyleaf Buckwheat
Kidneyshape Buckwheat
Kidneywood
King's Clover
King's Lupine
King's Ragwort
Kingcup Cactus
Kinnikinnick
Kiss Me Quick
Kittentail
Knapweed
Knight's-spur
Knotgrass
Knotted Hedgeparsley
Knotted Rush
Knotweed
Knowlton's Hophornbeam