Lactuca serriola [Prickly Lettuce]
Lambsquarters [Chenopodium album]
Larix decidua [European Larch]
Larix kaempferi [Japanese Larch]
Larix Laricina [Tamarack]
Larrea tridentata [Creosote Bush]
Lasthenia californica [California Goldfields]
Leaf Succulent [Agave vilmoriniana]
Ledum palustre [Wild Rosemary]
Lemna gibba [Swollen Duckweed]
Lettuce, Prickly [Lactuca serriola]
Leucadendron coniferum [Dune Conebush]
Leucadendron laureolum [Golden Conebush]
Leucadendron meridianum [Limestone Conebush]
Leucadendron xanthoconus [Sickle-leaf Conebush]
Lichen [Caloplaxa trachyphylla]
Lichen, Felt [Peltigera canina]
Lichen, Felt [Peltigera rufescens]
Lichen, Membraneous Felt [Peltigera membranacea]
Lichen, Flavopunctelia [Parmelia praesignis]
Lichen, Foliose [Parmelia caperata]
Lichen, Foliose [Parmelia kurokawae]
Lichen, Foliose [Peltigera polydactyla]
Lichen, Fruticose [Cladonia rangiferina]