La Cruz Manzanita          

La Graciosa Thistle          

La Panza Manzanita          

La Plata Sandspurry          

La Purissima Manzanita          

Labrador Tea          

Lace Grass          

Lace Lipfern          

Lacebark          

Lacefern          

Lacy Phacelia      

Lacy Tansyaster          

Ladder Brake          

Ladder Buckwheat          

Ladiestongue Mustard          

Lady Tulip          

Ladyfern          

Laguna Beach Liveforever          

Laguna Mountain Alumroot          

Laguna Mountain Jewelflower          

Lake Almanor Clarkia          

Lake County Dwarf-flax          

Lake County Mock Stonecrop          

Lake Tahoe Draba          

Lake Tahoe Lupine          

Lake Tahoe Serpentweed          

Lake Tahoe Yellowcress          

Lake Willow Dock          

Lakeshore Sedge      

Lambsquarters          

Lambstongue Ragwort      

Lamiastrum          

Lamp Rush          

Lampranthus          

Lanate Balsamroot          

Lance Selfheal          

Lanceleaf Browneyes          

Lanceleaf Figwort          

Lanceleaf Fogfruit          

Lanceleaf Goldenweed          

Lanceleaf Grapefern      

Lanceleaf Liveforever          

Lanceleaf Sage          

Lanceleaf Springbeauty