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Plant List
Indexed Alphabetically by Common Name
L-M
For a list of plants indexed by Scientific Name, click here
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| National Common Name | Scientific Name with Author | Symbol | Family | |
| La Cruz manzanita | Arctostaphylos cruzensis J.B. Roof | ARCR6 | Ericaceae | |
| la graciosa thistle | Cirsium loncholepis Petrak | CILO | Asteraceae | |
| La Panza manzanita | Arctostaphylos pilosula Jepson & Wies. ex Jepson | ARPI | Ericaceae | |
| La Purissima manzanita | Arctostaphylos purissima P.V. Wells | ARPU10 | Ericaceae | |
| Labrador bryum moss | Bryum longisetum Bland. ex Schwaegr. var. labradorense (Philib.) C. Jens. | BRLOL2 | Bryaceae | |
| Labrador cup lichen | Cladonia labradorica Ahti & Brodo | CLLA8 | Cladoniaceae | |
| Labrador Indian paintbrush | Castilleja septentrionalis Lindl. | CASE4 | Scrophulariaceae | |
| lace lipfern | Cheilanthes gracillima D.C. Eat. | CHGR | Pteridaceae | |
| lacefern | Aspidotis (Nutt. ex Hook.) Copeland | ASPID2 | Pteridaceae | |
| lacefern | Ctenitis (C. Christens.) C. Christens. ex Tardieu-Blot & C. Christens | CTENI2 | Dryopteridaceae | |
| laceleaf | Anthurium Schott | ANTHU | Araceae | |
| Lackschewitz's milkvetch | Astragalus lackschewitzii Lavin & H. Marriott | ASLA26 | Fabaceae | |
| lacy spleenwort | Asplenium horridum Kaulfuss | ASHO4 | Aspleniaceae | |
| lacy thistle | Cirsium modestum (Osterhout) Cockerell | CIMO2 | Asteraceae | |
| ladies'-tresses | Cyclopogon K. Presl | CYCLO5 | Orchidaceae | |
| Lady Bird's centaury | Centaurium texense (Griseb.) Fern. | CETE2 | Gentianaceae | |
| lady of the night cactus | Cereus hexagonus (L.) P. Mill. | CEHE3 | Cactaceae | |
| lady of the night orchid | Brassavola nodosa (L.) Lindl. | BRNO3 | Orchidaceae | |
| ladyfern | Athyrium Roth | ATHYR | Dryopteridaceae | |
| lady's mantle | Alchemilla L. | ALCHE | Rosaceae | |
| lady's nightcap | Bonamia Thouars | BONAM | Convolvulaceae | |
| lady's slipper | Cypripedium L. | CYPRI | Orchidaceae | |
| lady's-mantle | Alchemilla mollis (Buser) Rothm. | ALMO12 | Rosaceae | |
| Lahontan milkvetch | Astragalus porrectus S. Wats. | ASPO3 | Fabaceae | |
| Lake Almanor clarkia | Clarkia stellata Mosquin | CLST3 | Onagraceae | |
| Lake Ella hawthorn | Crataegus integra Beadle | CRIN18 | Rosaceae | |
| lakeshore sedge | Carex lenticularis Michx. | CALE8 | Cyperaceae | |
| lakeshore sedge | Carex lenticularis Michx. var. impressa (Bailey) L.A. Standley | CALEI | Cyperaceae | |
| lakeshore sedge | Carex lenticularis Michx. var. lenticularis | CALEL | Cyperaceae | |
| lakeshore sedge | Carex lenticularis Michx. var. limnophila (Holm) Cronq. | CALEL2 | Cyperaceae | |
| lamb succory | Arnoseris minima (L.) Schweig. & Koerte | ARMI3 | Asteraceae | |
| lambsquarters | Chenopodium album L. | CHAL7 | Chenopodiaceae | |
| lambsquarters | Chenopodium album L. var. album | CHALA | Chenopodiaceae | |
| lambsquarters | Chenopodium album L. var. microphyllum Boenn. | CHALM | Chenopodiaceae | |
| lamilla | Bouteloua juncea (Desv. ex Beauv.) A.S. Hitchc. | BOJU | Poaceae | |
| lanate balsamroot | Balsamorhiza lanata (Sharp) W.A. Weber | BALA8 | Asteraceae | |
| lance asplenium | Asplenium ruta-muraria L. var. lanceolum Christ | ASRUL | Aspleniaceae | |
| lanceleaf anoda | Anoda lanceolata Hook. & Arn. | ANLA4 | Malvaceae | |
| lanceleaf arnica | Arnica lanceolata Nutt. | ARLA7 | Asteraceae | |
| lanceleaf browneyes | Camissonia claviformis (Torr. & Frém.) Raven ssp. lancifolia (Heller) Raven | CACLL | Onagraceae | |
| lanceleaf cyanea | Cyanea lanceolata (Gaud.) Lammers, Givnish & Sytsma | CYLA12 | Campanulaceae | |
| lanceleaf grapefern | Botrychium lanceolatum (Gmel.) Angstr. | BOLA | Ophioglossaceae | |
| lanceleaf grapefern | Botrychium lanceolatum (Gmel.) Angstr. var. angustisegmentum Pease & Moore | BOLAA2 | Ophioglossaceae | |
| lanceleaf grapefern | Botrychium lanceolatum (Gmel.) Angstr. var. lanceolatum | BOLAL | Ophioglossaceae | |
| lanceleaf ragweed | Ambrosia bidentata Michx. | AMBI2 | Asteraceae | |
| lanceleaf rattlebox | Crotalaria lanceolata E. Mey. | CRLA7 | Fabaceae | |
| lanceleaf springbeauty | Claytonia flava A. Nels. | CLFL3 | Portulacaceae | |
| lanceleaf springbeauty | Claytonia lanceolata Pall. ex Pursh | CLLA2 | Portulacaceae | |
| lanceleaf springbeauty | Claytonia lanceolata Pall. ex Pursh var. chrysantha (Greene) C.L. Hitchc. | CLLAC | Portulacaceae | |
| lanceleaf springbeauty | Claytonia lanceolata Pall. ex Pursh var. lanceolata | CLLAL | Portulacaceae | |
| lanceleaf springbeauty | Claytonia lanceolata Pall. ex Pursh var. sessilifolia (Torr.) A. Nels. | CLLAS | Portulacaceae | |
| lanceleaf springbeauty | Claytonia multiscapa Rydb. | CLMU5 | Portulacaceae | |
| lanceleaf thorow wax | Bupleurum lancifolium Hornem. | BULA3 | Apiaceae | |
| lanceleaf tickseed | Coreopsis lanceolata L. | COLA5 | Asteraceae | |
| lanceleaf water plantain | Alisma lanceolatum Withering | ALLA2 | Alismataceae | |
| Lane Mountain milkvetch | Astragalus jaegerianus Munz | ASJA | Fabaceae | |
| Langsdorf's copaifera | Copaifera langsdorfii Desf. | COLA14 | Fabaceae | |
| lapalapa | Cheirodendron platyphyllum (Hook. & Arn.) Seem. | CHPL | Araliaceae | |
| lapalapa | Cheirodendron platyphyllum (Hook. & Arn.) Seem. ssp. kauaiense (Krajina) Lowry | CHPLK | Araliaceae | |
| lapalapa | Cheirodendron platyphyllum (Hook. & Arn.) Seem. ssp. platyphyllum | CHPLP | Araliaceae | |
| Lapland amphidium moss | Amphidium lapponicum (Hedw.) Schimp. | AMLA70 | Orthotrichaceae | |
| Lapland cornel | Cornus suecica L. | COSU4 | Cornaceae | |
| lapland reedgrass | Calamagrostis lapponica (Wahlenb.) Hartman | CALA6 | Poaceae | |
| Lapland sedge | Carex lapponica O.F. Lang | CALA15 | Cyperaceae | |
| Laramie columbine | Aquilegia laramiensis A. Nels. | AQLA | Ranunculaceae | |
| larch dwarf mistletoe | Arceuthobium laricis (Piper) St. John | ARLA11 | Viscaceae | |
| Laredo sandmat | Chamaesyce laredana (Millsp.) Small | CHLA8 | Euphorbiaceae | |
| large boykinia | Boykinia major Gray | BOMA3 | Saxifragaceae | |
| large bullwort | Ammi majus L. | AMMA | Apiaceae | |
| large camas | Camassia leichtlinii (Baker) S. Wats. | CALE5 | Liliaceae | |
| large camas | Camassia leichtlinii (Baker) S. Wats. ssp. leichtlinii | CALEL6 | Liliaceae | |
| large fever berry | Croton megalobotrys Müll.Arg. | CRME15 | Euphorbiaceae | |
| large toothwort | Cardamine maxima (Nutt.) Wood | CAMA36 | Brassicaceae | |
| largebract spiderling | Boerhavia wrightii Gray | BOWR | Nyctaginaceae | |
| largeflower brunfelsia | Brunfelsia grandiflora D. Don | BRGR9 | Solanaceae | |