Kidneyleaf Buckwheat (Eriogonum reniforme)
Kigelia
africana
pinnata
King
Devil (Hieracium caespitosum)
Protea (Protea cynaroides)
Sago Palm (Cycas revoluta)
Solomon’s-seal (Polygonatum biflorum)
King,
Jungle (Alpinia purpurata cv. ‘Tahitian Ginger’)
Jungle (Alpinia purpurata)
King-devil, Yellow (Hieracium caespitosum)
King-of-the-meadow (Thalictrum pubescens)
Kingcup (Caltha palustris)
Kinnikinnick (Arctostaphylos uva-ursi)
Kleinia repens
Knapweed,
Black (Centaurea nigra)
Brown (Centaurea jacea)
Diffuse (Centaurea diffusa)
Spotted (Centaurea stoebe ssp. micranthos)
Tumble (Centaurea diffusa)
White (Centaurea diffusa)
Knautia arvensis
Knawel (Scleranthus annuus)
Kneiffia
allenii
arenicola
brevistipata
fruticosa
glauca
hybrida
latifolia
linearis
longipedicellata
perennis
pumila
riparia
semiglandulosa
subglobosa
tetragona
Kniphofia
caulescens
uvaria
‘Nancy’s Red’
Knotweed,
Giant (Polygonum sachalinense)
Japanese (Polygonum cuspidatum)
Mile-a-minute (Polygonum perfoliatum)
Sakhalin (Polygonum sachalinense)
Water (Polygonum amphibium)
Kochia (Bassia scoparia)
Kochia
alata
scoparia
scoparia var. culta
scoparia var. pubescens
scoparia var. subvillosa
scoparia var. trichophila
scoparia var. trichophylla
sieversiana
trichophila
trichophylla
Korean
Barberry (Berberis koreana)
Maple (Acer pseudosieboldianum)
Kousa
Dogwood (Cornus kousa cv. ‘Milky Way’)
Dogwood (Cornus kousa)
Kouse Dogwood (Cornus kousa)
Krameria
erecta
glandulosa
imparata
parvifolia
parvifolia var. glandulosa
parvifolia var. imparata
Kraunhia
frutescens
macrostachya
Krigia virginica
Krugiodendron ferreum
Kudu (Adenium obesum)
Kudzu (Pueraria sp.)
Kumquat, Nagami (Fortunella margarita)
Kyllinga nemoralis
Kärnefelt &
Kī (Cordyline fruticosa)
L. maritimus
Labrador Tea (Ledum groenlandicum)
Laburnum anagyroides
Laccaria longipes
Lace,
Bishop’s (Daucus carota)
Golden (Mammillaria elongata var. Cristata)
Lacebark, Queensland (Brachychiton discolor)
Lactarius piperatus
Lactuca
biennis
canadensis
canadensis var. integrifolia
canadensis var. latifolia
canadensis var. longifolia
canadensis var. obovata
canadensis var. typica
floridana
sagittifolia
sagittifolia
scariola
serriola
spicata
spicata var. integrifolia
steelei
Lacy Tree Fern (Cyathea cooperi)
Ladder,
Jacob’s (Polemonium caeruleum)
Jacob’s (Polemonium vanbruntiae)
Ladies, Quaker (Houstonia caerulea)
Ladies’-eardrops (Fuchsia ‘President’)
Ladies’-tresses, Common (Spiranthes cernua)
Lady
Fern (Athyrium felix-femina ‘Minutissimum’)
Fern (Athyrium filix-femina ‘Dre’s Dagger’)
Fern (Athyrium filix-femina)
Finger Cactus (Echinocereus pentalophus)
of the Night (Brunfelsia nitida)
Lady,
Dancing (Oncidium ‘Burgundy’)
Dancing (Oncidium ‘Happy Valentine’)
Eleven-o’clock (Ornithogalum umbellatum)
Naked (Euphorbia tirucalli)
Lady-in-a-bath (Lamprocapnos spectabilis)
Ladysthumb, Spotted (Polygonum persicaria)
Lady’s
Mantle (Alchemilla mollis)
Slipper (Cypripedium acaule)
Smock (Cardamine pratensis)
Thumb (Polygonum persicaria)
Laetiporus
conifericola
gilbertsonii
sulphureus
Lagerstroemia
indica cv.
indica ‘Acomi’
indica ‘Red Rocket’
indica ‘Watermelon Pink’
⨉ ‘Natchez’
Lagerstromia faumei ‘Townhouse’
Lagos Rubber Tree (Ficus lutea)
Lake Loosestrife (Lysimachia terrestris)
Lakeside Daisy (Tetraneuris herbacea)
Lamance Iris (Iris brevicaulis)
Lambkill (Kalmia latifolia)
Lamb’s
Ear (Stachys byzantina ‘Silver Carpet’)
Ears (Stachys byzantina ‘Silver Carpet’)
Ears (Stachys byzantina)
Tail (Chiastophyllum oppositifolium)
Lamb’s-ears (Stachys byzantina ‘Silver Carpet’)
Lamium
amplexicaule
amplexicaule var. album
maculatum
purpureum
Lampranthus spectabilis
Lamprocapnos [Genus]
Lamprocapnos spectabilis
Lance-leaf Aster (Symphyotrichum lanceolatum)
Lance-leaved
Goldenrod (Euthamia graminifolia)
Tickseed (Coreopsis lanceolata)
Violet (Viola lanceolata)
Lanceleaf
Arrowhead (Sagittaria lancifolia)
Figwort (Scrophularia lanceolata)
Tickseed (Coreopsis lanceolata)
Lancewood (Nectandra coriacea)
Languas speciosa
Lantana
(Lantana camara cv.)
(Lantana camara)
Lantana
aculeata
camara
camara cv.
camara var. aculeata
camara var. flava
camara var. hybrida
camara var. mista
camara var. mutabilis
camara var. nivea
camara var. sanguinea
strigocamara
tiliifolia
× ‘Pink Caprice’
Lantana,
Common (Lantana camara cv.)
Kamara (Lantana camara cv.)
Largeleaf (Lantana camara cv.)
Lantern, Devil's (Oenothera deltoides)
Lapland Beard Lichen (Usnea lapponica)
Laportea canadensis
Lappa
major
minor
Lapsana communis
Laquered Polypore (Ganoderma lucidum)
Larch (Larix laricina)
Larch,
American (Larix laricina)
Black (Larix laricina)
Eastern (Larix laricina)
Red (Larix laricina)
Large
Barrel Cactus (Echinocactus platyacanthus)
Blue Flag (Iris versicolor)
Crabgrass (Digitaria sanguinalis)
Cranberry (Vaccinium macrocarpon)
Fothergilla (Fothergilla major)
Hop Clover (Trifolium aureum)
Hop Trefoil (Trifolium aureum)
Houstonia (Houstonia purpurea)
Quaking Grass (Briza maxima)
Tree Aloe (Aloe barberae)
Yellow Lady’s Slipper (Cypripedium parviflorum var. pubescens)
Yellow Loosestrife (Lysimachia punctata)
Large-flowered
Bellwort (Uvularia grandiflora)
Fairy Bell (Prosartes smithii)
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Large-leaved Lupine (Lupinus polyphyllus)
Large-tooth Aspen (Populus grandidentata)
Largeflower Mexican Clover (Richardia grandiflora f.)
Largeleaf
Avens (Geum macrophyllum)
Lantana (Lantana camara cv.)
Larger
Bindweed (Calystegia sepium)
Bur Marigold (Bidens laevis)
Larix
alaskensis
laricina
laricina ssp. alaskensis
laricina var. alaskensis
Larkspur (Delphinium)
Larkspur,
Carolina (Delphinium carolinianum)
Dwarf (Delphinium tricorne)
Larrea tridentata
Lasallea
adnata
novae-angliae
Lasallia
papulosa
pustulata ssp. papulosa
Lasiococcus
dumosus
dumosus var. bigelovianus
orocola
Latanier Latte (Verschaffeltia splendida)
Late Fall Polypore (Ischnoderma resinosum)
Lathyrus
japonicus
latifolius
latifolius var. splendens
littoralis
myrtifolius
odoratus
palustris
palustris ssp. pilosus
palustris var. linearifolius
palustris var. macranthus
palustris var. meridionalis
palustris var. myrtifolius
palustris var. pilosus
palustris var. retusus
sylvestris
Latte, Latanier (Verschaffeltia splendida)
Laua'e Fern (Phymatosorus grossus)
Laurel Dodder (Cassytha filiformis)
Laurel,
Drooping (Leucothoe fontanesiana cv. Scarletta)
Great (Rhododendron maximum)
Mountain (Kalmia latifolia)
Sheep (Kalmia angustifolia)
Laurus
albidus
coriacea
sassafras
Lavandula heterophylla
Lavauxia
taraxacoides
taraxacoides
Lavender
Cotton (Santolina chamaecyparissus)
Thistle (Cirsium neomexicanum)
Lavender,
Desert (Hyptis emoryi)
Sweet (Lavandula heterophylla)
Lavenderleaf Sundrops (Calylophus lavandulifolius)
Lawn Marsh Pennywort (Hydrocotyle sibthorpioides)
Lawyer’s Wig (Coprinus comatus)
Laxflower (Baileya pauciradiata)
Le Conte Barrel Cactus (Ferocactus cylindraceus)
Leadplant (Amorpha canescens)
Leadtree, White (Leucaena leucocephala)
Leadwort (Ceratostigma plumbaginoides)
Leaf,
Copper (Acalypha amentacea ssp. wilkesiana)
Cranberry (Hibiscus acetosella ‘Haight-Ashbury’)
Dollar (Desmodium rotundifolium)
Umbrella (Diphylleia cymosa)
Velvet (Kalanchoe beharensis)
Leafy
Beggarticks (Bidens frondosa)
Bulrush (Scirpus polyphyllus)
Jelly Fungus (Tremella foliacea)
Liverwort (Bazzania trilobata)
Least Hop Clover (Trifolium dubium)
Leather Fern (Acrostichum danaeifolium)
Leatherleaf
(Chamaedaphne calyculata)
Mahonia (Mahonia bealei)
Leatherwood (Dirca palustris)
Leatherwood, Eastern (Dirca palustris)
Leavenworth’s Tickseed (Coreopsis leavenworthii)
Lea’s Mycena (Mycena leaiana)
Lecanora
oreinoides
thysanophora
Leccinum aurantiacum
Lechuguilla (Agave lechuguilla)
Lecidea
albocaerulescens
atrata
dicksonii
Ledum
groenlandicum
palustre ssp. groenlandicum
palustre var. latifolium
Leek (Allium ampeloprasum ‘Bleu Solaize’)
Leek, Wild (Allium tricoccum)
Legousia perfoliata
Lei Orchid (Dendrobium ‘Pegasus’)
Leiophyllum
buxifolium
buxifolium
buxifolium var. hugeri
buxifolium var. hugeri
buxifolium var. prostratum
buxifolium var. prostratum
hugeri
lyonii
Lemaireocereus marginatus
Lemna
cyclostasa
cyclostasa
minima
minor
Lemon Balm (Melissa officinalis)
Lemon,
Ground (Podophyllum peltatum)
Wild (Podophyllum peltatum)
Lemonade
Berry (Rhus integrifolia)
Sumac (Rhus integrifolia)
Lemonadeberry (Rhus integrifolia)
Lenticular Sedge (Carex lenticularis)
Lentinula edodes
Lentinus
edodes
mellianus
shiitake
tonkinensis
Leonotis leonurus
Leonurus [Genus]
Leonurus cardiaca
Leotia lubrica
Lepachys
columnaris
columnifera
Lepargyrea argentea
Lepidium
montanum
virginicum
Lepidospartum latisquamum
Lepiota shiitake
Leptamnium virginianum
Leptandra virginica
Leptoglottis
angustisiliqua
chapmanii
microphylla
Leptospermum scoparium ‘Burgundy Queen’
Lespedeza
bicknellii
capitata
capitata var. stenophylla
capitata var. velutina
capitata var. vulgaris
cuneata
cuneata var. serpens
hirta
hirta
juncea var. sericea
latissima
procumbens
sericea
serpens
stuevei
virginica
Lespedeza,
Chinese (Lespedeza cuneata)
Perennial (Lespedeza cuneata)
Roundhead (Lespedeza capitata)
Sericea (Lespedeza cuneata)
Lesquerella
arizonica
arizonica var. nudicaulis
Lesser
Bulrush (Typha angustifolia)
Celandine (Ranunculus ficaria)
Crowfoot (Ranunculus ficaria)
Daisy Fleabane (Erigeron strigosus)
Reedmace (Typha angustifolia)
Rushy Milkvetch (Astragalus convallarius)
Snakeroot (Ageratina aromatica)
Letharia vulpina
Lettuce,
Canada (Lactuca canadensis)
Florida (Lactuca floridana)
Prickly (Lactuca serriola)
Sea (Scaevola sericea var. taccada)
Water (Pistia stratiotes)
Wild (Lactuca canadensis)
Woodland (Lactuca floridana)
Leucadendron
argenteum
nutans
Leucaena leucocephala
Leucanthemum
leucanthemum
leucanthemum
vulgare
vulgare var. pinnatifidum
× superbum
Leucoagaricus naucinus
Leucobryum [Genus]
Leucophyllum frutescens
Leucospermum
cordifolium
‘Hawaii Yellow’
Leucothoe
axillaris var. editorum
catesbaei
editorum
fontanesiana
fontanesiana cv. Scarletta
Lewisia (Lewisia cotyledon)
Lewisia cotyledon
Liatris [Genus]
Liatris
bracteata
elegans
scariosa
spicata
spicata ‘Floristan Violet’
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