Lace-leaved Rockdaisy
Lacespine Nipple Cactus
Lacy Phacelia
Lacy Tansyaster
Ladder Buckwheat
Lady Orchid
Ladyfern
Lagascea
Lagenaria
Lakeshore Sedge
Lambsquarters
Lamp Rush
Lance Selfheal
Lanceleaf Anoda
Lanceleaf Beardtongue
Lanceleaf Cottonwood
Lanceleaf Fogfruit
Lanceleaf Grapefern
Lanceleaf Sage
Lanceleaf Thorow Wax
Langloisia
Lantana
Large Adderstongue
Large Bullwort
Large Buttercup
Large-spike Bristlegrass
Largebract Spiderling
Largeflower Hawksbeard
Largeflower Onion
Largeflower Skeletonplant
Largeflower Wild Hollyhock
Largeleaf Avens
Largeleaf Springparsley
Larkspur
Las Animas Nakedwood
Lasianthaea
Late Snakeweed
Latin American Buttercup
Lavender Thoroughwort
Lavenderleaf Sundrops
Lax-flowered Green Orchid
Laxflower
Leadtree
Leadwort