Lactuca biennis --- tall blue lettuce
Lactuca canadensis --- Canada lettuce
Lactuca ludoviciana --- biannual lettuce
Lactuca serriola --- prickly lettuce
Lactuca tatarica --- blue lettuce
Lactuca tatarica var. pulchella --- blue lettuce
Lallemantia peltata --- lion's heart
Lamium amplexicaule --- henbit deadnettle
Lappula cenchrusoides --- Great Plains stickseed
Lappula occidentalis --- flatspine stickseed
Lappula occidentalis var. cupulata --- flatspine stickseed
Lappula occidentalis var. occidentalis --- flatspine stickseed
Lappula squarrosa --- European stickseed
Larix occidentalis --- western larch
Lathyrus eucosmus --- bush vetchling
Lathyrus laetivirens --- aspen pea
Lathyrus lanszwertii --- Nevada pea
Lathyrus lanszwertii var. lanszwertii --- Lanszwert's pea
Lathyrus lanszwertii var. leucanthus --- Nevada pea
Lathyrus lanszwertii var. pallescens --- Nevada pea
Lathyrus latifolius --- perennial pea
Lathyrus ochroleucus --- cream pea
Lathyrus polymorphus --- manystem pea
Lathyrus polymorphus ssp. incanus --- hoary pea
Lathyrus polymorphus ssp. polymorphus --- manystem pea
Lathyrus polymorphus ssp. polymorphus var. polymorphus --- manystem pea
Lathyrus sylvestris --- flat pea
Lavatera thuringiaca --- tree lavatera
Lechea intermedia --- largepod pinweed
Lechea intermedia var. intermedia --- largepod pinweed
Ledum glandulosum --- western Labrador tea
Leersia oryzoides --- rice cutgrass
Leersia virginica --- whitegrass
Lemna minor --- common duckweed
Lemna trisulca --- star duckweed
Lemna turionifera --- turion duckweed
Lemna valdiviana --- valdivia duckweed
Leonurus cardiaca --- common motherwort
Lepidium alyssoides --- mesa pepperwort
Lepidium alyssoides var. alyssoides --- mesa pepperwort
Lepidium campestre --- field pepperweed
Lepidium densiflorum --- common pepperweed
Lepidium densiflorum var. densiflorum --- common pepperweed
Lepidium densiflorum var. macrocarpum --- bigseed pepperweed
Lepidium densiflorum var. pubecarpum --- babyseed pepperweed
Lepidium densiflorum var. ramosum --- miner's pepperweed
Lepidium integrifolium --- thickleaf pepperweed
Lepidium integrifolium var. integrifolium --- thickleaf pepperweed
Lepidium latifolium --- broadleaved pepperweed
Lepidium montanum --- mountain pepperweed
Lepidium montanum var. montanum --- mountain pepperweed
Lepidium montanum var. wyomingense --- mountain pepperweed
Lepidium paysonii --- Payson's pepperweed
Lepidium perfoliatum --- clasping pepperweed
Lepidium ramosissimum --- manybranched pepperweed
Lepidium ramosissimum var. bourgeauanum --- Bourgeau's pepperweed
Lepidium ramosissimum var. ramosissimum --- manybranched pepperweed
Lepidium sativum --- gardencress pepperweed
Lepidium virginicum --- Virginia pepperweed
Lepidium virginicum var. medium --- medium pepperweed
Lepidium virginicum var. pubescens --- hairy pepperweed
Leptochloa fusca --- Malabar sprangletop
Leptochloa fusca ssp. fascicularis --- bearded sprangletop
Leptodactylon caespitosum --- mat prickly phlox
Leptodactylon pungens --- granite prickly phlox
Leptodactylon watsonii --- Watson's prickly phlox
Lesquerella alpina --- alpine bladderpod
Lesquerella alpina var. alpina --- alpine bladderpod
Lesquerella arenosa --- Great Plains bladderpod
Lesquerella arenosa var. arenosa --- Great Plains bladderpod
Lesquerella arenosa var. argillosa --- Great Plains bladderpod
Lesquerella carinata --- Idaho bladderpod
Lesquerella carinata var. carinata --- Idaho bladderpod
Lesquerella condensata --- dense bladderpod
Lesquerella fremontii --- Fremont's bladderpod
Lesquerella ludoviciana --- foothill bladderpod
Lesquerella macrocarpa --- largefruit bladderpod
Lesquerella montana --- mountain bladderpod
Lesquerella multiceps --- manyhead bladderpod
Lesquerella parvula --- pygmy bladderpod
Lesquerella paysonii --- Payson's bladderpod
Lesquerella prostrata --- low bladderpod
Lesquerella subumbellata --- parasol bladderpod
Leucanthemum vulgare --- oxeye daisy
Leucocrinum montanum --- common starlily
Leucopoa kingii --- spike fescue
Levisticum officinale --- garden lovage
Lewisia pygmaea --- alpine lewisia
Lewisia rediviva --- bitter root
Lewisia rediviva var. rediviva --- bitter root
Lewisia triphylla --- threeleaf lewisia
Leymus ambiguus --- Colorado wildrye
Leymus angustus --- Altai wildrye
Leymus cinereus --- basin wildrye
Leymus innovatus --- downy ryegrass
Leymus multicaulis --- manystem wildrye
Leymus racemosus --- mammoth wildrye
Leymus salinus --- saline wildrye
Leymus salinus ssp. salinus --- saline wildrye
Leymus simplex --- alkali wildrye
Leymus triticoides --- beardless wildrye
Liatris lancifolia --- lanceleaf blazing star
Liatris ligulistylis --- Rocky Mountain blazing star
Liatris punctata --- dotted blazing star
Liatris punctata var. punctata --- dotted blazing star
Ligusticum canbyi --- Canby's licorice-root
Ligusticum filicinum --- fernleaf licorice-root
Ligusticum porteri --- Porter's licorice-root
Ligusticum porteri var. porteri --- Porter's licorice-root
Ligusticum tenuifolium --- Idaho licorice-root
Lilium philadelphicum --- wood lily
Lilium philadelphicum var. andinum --- wood lily
Limosella aquatica --- water mudwort
Linanthus nuttallii --- Nuttall's linanthus
Linanthus nuttallii ssp. nuttallii --- Nuttall's linanthus
Linanthus septentrionalis --- northern linanthus
Linaria dalmatica --- Dalmatian toadflax
Linaria dalmatica ssp. dalmatica --- Dalmatian toadflax
Linaria vulgaris --- butter and eggs
Linnaea borealis --- twinflower
Linnaea borealis ssp. americana --- twinflower
Linum australe --- southern flax
Linum australe var. australe --- southern flax
Linum compactum --- Wyoming flax
Linum kingii --- King's flax
Linum lewisii --- prairie flax
Linum lewisii var. lewisii --- prairie flax
Linum puberulum --- plains flax
Linum rigidum --- stiffstem flax
Linum rigidum var. rigidum --- stiffstem flax
Linum usitatissimum --- common flax
Lipocarpha aristulata --- awned halfchaff sedge
Lipocarpha drummondii --- Drummond's halfchaff sedge
Listera borealis --- northern twayblade
Listera caurina --- northwestern twayblade
Listera convallarioides --- broadlipped twayblade
Listera cordata --- heartleaf twayblade
Listera cordata var. nephrophylla --- heartleaf twayblade
Lithophragma glabrum --- bulbous woodland-star
Lithophragma parviflorum --- smallflower woodland-star
Lithophragma parviflorum var. parviflorum --- smallflower woodland-star
Lithophragma tenellum --- slender woodland-star
Lithospermum incisum --- narrowleaf stoneseed
Lithospermum multiflorum --- manyflowered stoneseed
Lithospermum ruderale --- western stoneseed
Lloydia serotina --- common alplily
Lobelia siphilitica --- great blue lobelia
Lobelia siphilitica var. ludoviciana --- great blue lobelia
Lobularia maritima --- sweet alyssum
Loeflingia squarrosa --- spreading pygmyleaf
Loeflingia squarrosa ssp. artemisiarum --- spreading pygmyleaf
Loeflingia squarrosa ssp. squarrosa --- spreading pygmyleaf
Logfia arvensis --- field cottonrose
Lolium arundinaceum --- tall fescue
Lolium perenne --- perennial ryegrass
Lolium perenne ssp. multiflorum --- Italian ryegrass
Lolium perenne ssp. perenne --- perennial ryegrass
Lolium persicum --- Persian ryegrass
Lolium pratense --- meadow ryegrass
Lolium temulentum --- Darnel ryegrass
Lomatium ambiguum --- Wyeth biscuitroot
Lomatium attenuatum --- tapertip desertparsley
Lomatium bicolor --- Wasatch desertparsley
Lomatium bicolor var. bicolor --- Wasatch desertparsley
Lomatium bicolor var. leptocarpum --- Wasatch desertparsley
Lomatium cous --- cous biscuitroot
Lomatium dissectum --- fernleaf biscuitroot
Lomatium dissectum var. multifidum --- carrotleaf biscuitroot
Lomatium foeniculaceum --- desert biscuitroot
Lomatium foeniculaceum ssp. foeniculaceum --- desert biscuitroot
Lomatium foeniculaceum ssp. macdougalii --- Macdougal's biscuitroot
Lomatium graveolens --- king desertparsley
Lomatium graveolens var. graveolens --- king desertparsley
Lomatium grayi --- Gray's biscuitroot
Lomatium grayi var. grayi --- Gray's biscuitroot
Lomatium juniperinum --- juniper biscuitroot
Lomatium macrocarpum --- bigseed biscuitroot
Lomatium nuttallii --- Nuttall's biscuitroot
Lomatium orientale --- Northern Idaho biscuitroot
Lomatium simplex --- Great Basin desertparsley
Lomatium simplex var. leptophyllum --- slenderleaf lomatium
Lomatium simplex var. simplex --- Great Basin desertparsley
Lomatium triternatum --- nineleaf biscuitroot
Lomatium triternatum var. anomalum --- broadnineleaf biscuitroot
Lomatium triternatum var. triternatum --- nineleaf biscuitroot
Lomatogonium rotatum --- marsh felwort
Lonicera ×bella --- Bell's honeysuckle
Lonicera caerulea --- sweetberry honeysuckle
Lonicera caerulea var. cauriana --- bluefly honeysuckle
Lonicera dioica --- limber honeysuckle
Lonicera involucrata --- twinberry honeysuckle
Lonicera involucrata var. involucrata --- twinberry honeysuckle
Lonicera morrowii --- Morrow's honeysuckle
Lonicera tatarica --- Tatarian honeysuckle
Lonicera utahensis --- Utah honeysuckle
Lotus corniculatus --- birdfoot deervetch
Lotus unifoliolatus --- American bird's-foot trefoil
Lotus unifoliolatus var. unifoliolatus --- American bird's-foot trefoil
Lupinus ×alpestris --- Great Basin lupine
Lupinus argenteus --- silvery lupine
Lupinus argenteus ssp. argenteus --- silvery lupine
Lupinus argenteus ssp. argenteus var. argenteus --- silvery lupine
Lupinus argenteus ssp. argenteus var. laxiflorus --- silvery lupine
Lupinus argenteus ssp. rubricaulis --- silvery lupine
Lupinus argenteus ssp. spathulatus --- silvery lupine
Lupinus burkei --- largeleaf lupine
Lupinus burkei ssp. burkei --- largeleaf lupine
Lupinus caespitosus --- stemless dwarf lupine
Lupinus caespitosus var. caespitosus --- stemless dwarf lupine
Lupinus caespitosus var. utahensis --- Utah lupine
Lupinus caudatus --- tailcup lupine
Lupinus caudatus ssp. argophyllus --- Kellogg's spurred lupine
Lupinus caudatus ssp. caudatus --- tailcup lupine
Lupinus depressus --- depressed lupine
Lupinus leucophyllus --- velvet lupine
Lupinus leucophyllus ssp. erectus --- velvet lupine
Lupinus leucophyllus ssp. leucophyllus --- velvet lupine
Lupinus leucophyllus ssp. leucophyllus var. leucophyllus --- velvet lupine
Lupinus minimus --- Kettle Falls lupine
Lupinus monticola --- mountain lupine
Lupinus parviflorus --- lodgepole lupine
Lupinus parviflorus ssp. parviflorus --- lodgepole lupine
Lupinus plattensis --- Nebraska lupine
Lupinus prunophilus --- hairy bigleaf lupine
Lupinus pusillus --- rusty lupine
Lupinus pusillus ssp. intermontanus --- Intermountain lupine
Lupinus pusillus ssp. pusillus --- rusty lupine
Lupinus roseolus --- rosy lupine
Lupinus sericeus --- silky lupine
Lupinus sericeus ssp. sericeus --- silky lupine
Lupinus sericeus ssp. sericeus var. egglestonianus --- silky lupine
Lupinus sericeus ssp. sericeus var. sericeus --- silky lupine
Lupinus wyethii --- Wyeth's lupine
Lupinus wyethii ssp. tetonensis --- Teton lupine
Lupinus wyethii ssp. wyethii --- Wyeth's lupine
Luzula glabrata --- smooth woodrush
Luzula glabrata var. hitchcockii --- Hitchcock's smooth woodrush
Luzula multiflora --- common woodrush
Luzula multiflora ssp. frigida --- common woodrush
Luzula parviflora --- smallflowered woodrush
Luzula piperi --- Piper's woodrush
Luzula spicata --- spiked woodrush
Lycium barbarum --- matrimony vine
Lycopodium annotinum --- stiff clubmoss
Lycopodium complanatum --- groundcedar
Lycopodium dendroideum --- tree groundpine
Lycopus americanus --- American water horehound
Lycopus asper --- rough bugleweed
Lycopus uniflorus --- northern bugleweed
Lygodesmia grandiflora --- largeflower skeletonplant
Lygodesmia juncea --- rush skeletonplant
Lysichiton americanus --- American skunkcabbage
Lysimachia ciliata --- fringed loosestrife
Lysimachia thyrsiflora --- tufted loosestrife
Lythrum alatum --- winged lythrum
Lythrum alatum var. alatum --- winged lythrum
Lythrum salicaria --- purple loosestrife

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