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Key to families Table of families and genera
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Scientific Name

Index Page: L

Scientific NameCommon Name
Laburnum anagyroides
(Under Fabaceae (Leguminosae))
Mentioned in
a note
Lachnagrostis filiformis
(Under Agrostis avenacea)
Synonym
Lactuca
  ↳  Key to Lactuca
LETTUCE
Lactuca biennisNative
Lactuca canadensisNaturalized
Lactuca ludovicianaNaturalized
Lactuca salignaNaturalized
Lactuca sativa
(Under Lactuca)
Mentioned in
a note
Lactuca serriolaPRICKLY LETTUCENaturalized
Lactuca serriola var. integra
(Under Lactuca serriola)
Synonym
Lactuca tatarica subsp. pulchellaNative
Lactuca tatarica var. pulchella
(Under Lactuca tatarica subsp. pulchella)
Synonym
Lactuca virosaNaturalized
Ladeania
Ladeania lanceolataNative
Laennecia
Laennecia coulteriCOULTER'S HORSEWEEDNative
Lagophylla
  ↳  Key to Lagophylla
HARE-LEAF
Lagophylla diabolensisNative
Lagophylla dichotomaNative
Lagophylla dichotoma subsp. minor
(Under Lagophylla minor)
Synonym
Lagophylla glandulosaNative
Lagophylla glandulosa subsp. serrata
(Under Lagophylla glandulosa)
Synonym
Lagophylla minorNative
Lagophylla ramosissimaNative
Lagophylla ramosissima subsp. congesta
(Under Lagophylla ramosissima)
Synonym
Lagophylla ramosissima subsp. ramosissima
(Under Lagophylla ramosissima)
Synonym
Lagunaria
Lagunaria patersoniaNORFOLK ISLAND HIBISCUS, COW ITCH TREENaturalized
LagurusHARE'S TAIL GRASS
Lagurus ovatusNaturalized
LamarckiaGOLDENTOP
Lamarckia aureaNaturalized
Lamiaceae (Labiatae)
  ↳  Key to Lamiaceae (Labiatae)
MINT FAMILY
LamiastrumYELLOW ARCHANGEL
Lamiastrum galeobdolonWaif
Lamium
  ↳  Key to Lamium
DEAD NETTLE
Lamium amplexicauleHENBITNaturalized
Lamium galeobdolon
(Under Lamiastrum galeobdolon)
Synonym
Lamium purpureumNaturalized
Lampranthus coccineus
(Under Aizoaceae)
Mentioned in
a note
LandoltiaDOTTED DUCKMEAT
Landoltia punctataNative
Langloisia
Langloisia matthewsii
(Under Loeseliastrum matthewsii)
Synonym
Langloisia punctata
(Under Langloisia setosissima subsp. punctata)
Synonym
Langloisia schottii
(Under Loeseliastrum schottii)
Synonym
Langloisia setosissima
  ↳  Key to Langloisia setosissima
Native
Langloisia setosissima subsp. punctataLILAC SUNBONNETNative
Langloisia setosissima subsp. setosissimaBRISTLY LANGLOISIANative
Lantana
  ↳  Key to Lantana
Lantana camaraWaif
Lantana montevidensisWaif
Laphamia inyoensis
(Under Perityle inyoensis)
Synonym
Laphamia megalocephala var. intricata
(Under Perityle intricata)
Synonym
Laphamia megalocephala var. megalocephala
(Under Perityle megalocephala var. megalocephala)
Synonym
Laphamia villosa
(Under Perityle villosa)
Synonym
Lappula
  ↳  Key to Lappula
Lappula echinata
(Under Lappula squarrosa)
Synonym
Lappula fremontii
(Under Lappula squarrosa)
Synonym
Lappula occidentalis
(Under Lappula redowskii)
Synonym
Lappula redowskiiNative
Lappula redowskii var. cupulataCROWNED STICKSEEDNative
Lappula redowskii var. desertorum
(Under Lappula redowskii var. cupulata)
Synonym
Lappula redowskii var. redowskiiWESTERN STICKSEEDNative
Lappula squarrosaTWO-ROWED STICKSEEDWaif
LapsanaNIPPLEWORT
Lapsana communisNaturalized
LarreaCREOSOTE BUSH
Larrea divaricata
(Under Larrea tridentata)
Mentioned in
a note
Larrea divaricata subsp. tridentata
(Under Larrea tridentata)
Synonym
Larrea tridentataNative
Larrea tridentata var. arenaria
(Under Larrea tridentata)
Synonym
LasiospermumCOCOONHEAD
Lasiospermum bipinnatumNaturalized
Lastarriaea
Lastarriaea chilensis subsp. californica
(Under Lastarriaea coriacea)
Synonym
Lastarriaea coriaceaLEATHER-SPINEFLOWERNative
Lasthenia
  ↳  Key to Lasthenia
GOLDFIELDS
Lasthenia burkeiBURKE'S GOLDFIELDSNative
Lasthenia californicaNative
Lasthenia californica subsp. bakeriBAKER'S GOLDFIELDSNative
Lasthenia californica subsp. californicaCALIFORNIA GOLDFIELDSNative
Lasthenia californica subsp. macranthaPERENNIAL GOLDFIELDSNative
Lasthenia chrysanthaALKALI-SINK GOLDFIELDSNative
Lasthenia chrysostoma
(Under Lasthenia californica subsp. californica)
Synonym
Lasthenia conjugensCONTRA COSTA GOLDFIELDSNative
Lasthenia coronariaCROWNED or ROYAL GOLDFIELDSNative
Lasthenia debilisGREENE'S GOLDFIELDSNative
Lasthenia ferrisiaeFERRIS' GOLDFIELDSNative
Lasthenia fremontiiFREMONT'S GOLDFIELDSNative
Lasthenia glaberrimaSMOOTH GOLDFIELDSNative
Lasthenia glabrataNative
Lasthenia glabrata subsp. coulteriCOULTER'S GOLDFIELDSNative
Lasthenia glabrata subsp. glabrataYELLOW-RAY GOLDFIELDSNative
Lasthenia gracilisCOMMON GOLDFIELDSNative
Lasthenia hirsutula
(Under Lasthenia californica subsp. californica)
Synonym
Lasthenia leptaleaSALINAS VALLEY GOLDFIELDSNative
Lasthenia macrantha
(Under Lasthenia californica subsp. macrantha)
Synonym
Lasthenia macrantha subsp. bakeri
(Under Lasthenia californica subsp. bakeri)
Synonym
Lasthenia maritimaMARITIME or SEASIDE GOLDFIELDSNative
Lasthenia microglossaSMALL-RAY GOLDFIELDSNative
Lasthenia minorCOASTAL GOLDFIELDSNative
Lasthenia minor subsp. maritima
(Under Lasthenia maritima)
Synonym
Lasthenia platycarphaALKALI GOLDFIELDSNative
Lastrea oregana
(Under Thelypteris nevadensis)
Synonym
Lathrocasis
Lathrocasis tenerrimaDELICATE GILIANative
Lathyrus
  ↳  Key to Lathyrus
WILD PEA
Lathyrus alefeldii
(Under Lathyrus vestitus var. alefeldii)
Synonym
Lathyrus angulatusNaturalized
Lathyrus aphacaWaif
Lathyrus biflorusTWO-FLOWERED PEANative
Lathyrus browniiNative
Lathyrus ciceraNaturalized
Lathyrus delnorticusDEL NORTE PEANative
Lathyrus glandulosusSTICKY PEANative
Lathyrus hirsutusCALEY PEANaturalized
Lathyrus hitchcockianusBULLFROG MOUNTAIN PEANative
Lathyrus japonicusSEASIDE PEANative
Lathyrus japonicus var. glaber
(Under Lathyrus japonicus)
Synonym
Lathyrus japonicus var. maritimus
(Under Lathyrus japonicus)
Synonym
Lathyrus jepsoniiNative
Lathyrus jepsonii var. californicusNative
Lathyrus jepsonii var. jepsoniiDELTA TULE PEANative
Lathyrus laetiflorus
(Under Lathyrus vestitus var. vestitus)
Synonym
Lathyrus laetiflorus subsp. alefeldii
(Under Lathyrus vestitus var. alefeldii)
Synonym
Lathyrus laetiflorus subsp. barbarae
(Under Lathyrus vestitus var. vestitus)
Synonym
Lathyrus lanszwertiiNative
Lathyrus lanszwertii var. aridusNative
Lathyrus lanszwertii var. brownii
(Under Lathyrus brownii)
Synonym
Lathyrus lanszwertii var. lanszwertiiNative
Lathyrus lanszwertii var. tracyiNative
Lathyrus latifoliusPERENNIAL SWEET PEANaturalized
Lathyrus littoralisNative
Lathyrus maritimus
(Under Lathyrus japonicus)
Synonym
Lathyrus nevadensis subsp. lanceolatus
(Under Lathyrus nevadensis var. nevadensis)
Synonym
Lathyrus nevadensis var. nevadensisNative
Lathyrus nevadensis var. pilosellus
(Under Lathyrus nevadensis var. nevadensis)
Synonym
Lathyrus odoratusSWEET PEANaturalized
Lathyrus palustrisMARSH PEANative
Lathyrus pauciflorus subsp. brownii
(Under Lathyrus brownii)
Synonym
Lathyrus pauciflorus var. brownii
(Under Lathyrus brownii)
Synonym
Lathyrus polyphyllusNative
Lathyrus rigidusRIGID PEANative
Lathyrus sphaericusNaturalized
Lathyrus splendensPRIDE-OF-CALIFORNIANative
Lathyrus sulphureusNative
Lathyrus sulphureus var. argillaceus
(Under Lathyrus sulphureus)
Synonym
Lathyrus tingitanusTANGIER PEANaturalized
Lathyrus torreyiNative
Lathyrus tracyi
(Under Lathyrus lanszwertii var. tracyi)
Synonym
Lathyrus vestitusNative
Lathyrus vestitus subsp. bolanderi
(Under Lathyrus vestitus var. ochropetalus)
Synonym
Lathyrus vestitus subsp. bolanderi
(Under Lathyrus vestitus var. vestitus)
Synonym
Lathyrus vestitus subsp. laetiflorus
(Under Lathyrus vestitus var. vestitus)
Synonym
Lathyrus vestitus subsp. laevicarpus
(Under Lathyrus vestitus var. vestitus)
Synonym
Lathyrus vestitus subsp. puberulus
(Under Lathyrus vestitus var. vestitus)
Synonym
Lathyrus vestitus var. alefeldiiNative
Lathyrus vestitus var. ochropetalusNative
Lathyrus vestitus var. vestitusNative
Lauraceae
  ↳  Key to Lauraceae
LAUREL FAMILY
LaurusLAUREL
Laurus nobilisBAY LAURELWaif
Lavatera
  ↳  Key to Lavatera
Lavatera arborea
(Under Malva arborea)
Synonym
Lavatera assurgentiflora
(Under Malva assurgentiflora)
Synonym
Lavatera assurgentiflora subsp. assurgentiflora
(Under Malva assurgentiflora)
Synonym
Lavatera assurgentiflora subsp. glabra
(Under Malva assurgentiflora)
Synonym
Lavatera cashmiriana
(Under Lavatera)
Mentioned in
a note
Lavatera cretica
(Under Malva pseudolavatera)
Synonym
Lavatera olbiaTREE LAVATERANaturalized
Lavatera thuringiaca
(Under Lavatera)
Mentioned in
a note
Lavatera trimestrisANNUAL LAVATERA, ROSE MALLOWWaif
LaxmanniaceaeWIRE-LILY FAMILY
Layia
  ↳  Key to Layia
Layia carnosaBEACH LAYIANative
Layia chrysanthemoidesNative
Layia chrysanthemoides subsp. maritima
(Under Layia chrysanthemoides)
Synonym
Layia discoideaRAYLESS LAYIANative
Layia fremontiiNative
Layia gaillardioidesNative
Layia glandulosaWHITE LAYIANative
Layia glandulosa subsp. lutea
(Under Layia glandulosa)
Synonym
Layia heterotrichaPALE-YELLOW LAYIANative
Layia hieracioidesNative
Layia jonesiiJONES' LAYIANative
Layia leucopappaCOMANCHE POINT LAYIANative
Layia munziiMUNZ'S TIDY-TIPSNative
Layia paniculata
(Under Layia hieracioides)
Synonym
Layia pentachaetaNative
Layia pentachaeta subsp. albidaNative
Layia pentachaeta subsp. pentachaetaNative
Layia platyglossaTIDY-TIPSNative
Layia platyglossa subsp. campestris
(Under Layia platyglossa)
Synonym
Layia septentrionalisCOLUSA LAYIANative
Ledum glandulosum
(Under Rhododendron columbianum)
Synonym
LeersiaCUTGRASS
Leersia hexandra
(Under Leersia oryzoides)
Mentioned in
a note
Leersia oryzoidesRICE CUTGRASSNative
Legenere
Legenere limosaLEGENERENative
Lembertia congdonii
(Under Monolopia congdonii)
Synonym
Lemmonia californica
(Under Nama californica)
Synonym
Lemna
  ↳  Key to Lemna
DUCKWEED
Lemna aequinoctialisNative
Lemna cyclostasa
(Under Lemna valdiviana)
Synonym
Lemna gibbaNative
Lemna minima
(Under Lemna minuta)
Synonym
Lemna minorNative
Lemna minor var. minima
(Under Lemna minor)
Synonym
Lemna minor var. obscura
(Under Lemna)
Mentioned in
a note
Lemna minuscula
(Under Lemna minuta)
Synonym
Lemna minutaNative
Lemna obscura
(Under Lemna)
Mentioned in
a note
Lemna paucicostata
(Under Lemna aequinoctialis)
Synonym
Lemna trisulcaNative
Lemna turioniferaNative
Lemna valdivianaNative
Lemna valdiviana var. abbreviata
(Under Lemna valdiviana)
Synonym
Lemna valdiviana var. valdiviana
(Under Lemna valdiviana)
Synonym
Lens
Lens culinarisLENTILAgricultural, garden, or urban weed
Lentibulariaceae
  ↳  Key to Lentibulariaceae
BLADDERWORT FAMILY
LeontodonHAWKBIT
Leontodon leysseri
(Under Leontodon saxatilis)
Synonym
Leontodon saxatilis
  ↳  Key to Leontodon saxatilis
HAIRY HAWKBITNaturalized
Leontodon saxatilis subsp. longirostrisNaturalized
Leontodon saxatilis subsp. saxatilisNaturalized
Leontodon taraxacoides
(Under Leontodon saxatilis)
Synonym
Leontodon taraxacoides
(Under Taraxia)
Mentioned in
a note
Leontodon taraxacoides subsp. longirostris
(Under Leontodon saxatilis subsp. longirostris)
Synonym
Leontodon taraxacoides subsp. taraxacoides
(Under Leontodon saxatilis subsp. saxatilis)
Synonym
Lepechinia
  ↳  Key to Lepechinia
PITCHER SAGE
Lepechinia calycinaNative
Lepechinia cardiophyllaHEART-LEAVED PITCHER SAGENative
Lepechinia fragransFRAGRANT PITCHER SAGENative
Lepechinia ganderiGANDER'S PITCHER SAGENative
Lepechinia rossiiROSS' PITCHER SAGENative
Lepidium
  ↳  Key to Lepidium
PEPPERGRASS, PEPPERCRESS
Lepidium acutidensNative
Lepidium appelianumWHITE-TOPNaturalized
Lepidium campestreNaturalized
Lepidium chalepenseLENS-PODDED HOARY CRESSNaturalized
Lepidium coronopusSWINE CRESSNaturalized
Lepidium densiflorumNative
Lepidium densiflorum var. bourgeauanum
(Under Lepidium ramosissimum)
Synonym
Lepidium densiflorum var. elongatum
(Under Lepidium densiflorum)
Synonym
Lepidium densiflorum var. macrocarpum
(Under Lepidium densiflorum)
Synonym
Lepidium densiflorum var. pubicarpum
(Under Lepidium densiflorum)
Synonym
Lepidium densiflorum var. ramosum
(Under Lepidium densiflorum)
Synonym
Lepidium dictyotumNative
Lepidium dictyotum var. acutidens
(Under Lepidium acutidens)
Synonym
Lepidium didymumLESSER SWINE CRESSNaturalized
Lepidium drabaHEART-PODDED HOARY CRESSNaturalized
Lepidium flavumNative
Lepidium flavum var. felipense
(Under Lepidium flavum)
Synonym
Lepidium fremontiiNative
Lepidium fremontii var. fremontii
(Under Lepidium fremontii)
Synonym
Lepidium fremontii var. stipitatum
(Under Lepidium fremontii)
Synonym
Lepidium heterophyllumNaturalized
Lepidium jarediiJARED'S PEPPERGRASSNative
Lepidium lasiocarpum subsp. lasiocarpumNative
Lepidium lasiocarpum subsp. wrightii
(Under Lepidium lasiocarpum subsp. lasiocarpum)
Mentioned in
a note
Lepidium lasiocarpum var. lasiocarpum
(Under Lepidium lasiocarpum subsp. lasiocarpum)
Synonym
Lepidium latifoliumPERENNIAL PEPPERWEEDNaturalized
Lepidium latipesNative
Lepidium latipes var. heckardii
(Under Lepidium latipes)
Synonym
Lepidium latipes var. latipes
(Under Lepidium latipes)
Synonym
Lepidium montanumNative
Lepidium montanum subsp. canescens
(Under Lepidium montanum)
Synonym
Lepidium montanum subsp. cinereum
(Under Lepidium montanum)
Synonym
Lepidium montanum var. canescens
(Under Lepidium montanum)
Synonym
Lepidium montanum var. cinereum
(Under Lepidium montanum)
Synonym
Lepidium nitidumNative
Lepidium nitidum var. howellii
(Under Lepidium nitidum)
Synonym
Lepidium nitidum var. oreganum
(Under Lepidium nitidum)
Synonym
Lepidium oblongumNative
Lepidium oblongum var. insulare
(Under Lepidium oblongum)
Synonym
Lepidium oblongum var. oblongum
(Under Lepidium oblongum)
Synonym
Lepidium oxycarpumNative
Lepidium oxycarpum var. acutidens
(Under Lepidium acutidens)
Synonym
Lepidium perfoliatumNaturalized
Lepidium pinnatifidumNaturalized
Lepidium ramosissimumNative
Lepidium ramosissimum var. bourgeauanum
(Under Lepidium ramosissimum)
Synonym
Lepidium ruderale
(Under Lepidium virginicum)
Synonym
Lepidium squamatum
(Under Lepidium coronopus)
Synonym
Lepidium strictumNaturalized
Lepidium thurberiNative
Lepidium virginicumNative
Lepidium virginicum subsp. menziesiiNative
Lepidium virginicum subsp. virginicumNative
Lepidium virginicum var. medium
(Under Lepidium virginicum subsp. menziesii)
Synonym
Lepidium virginicum var. menziesii
(Under Lepidium virginicum subsp. menziesii)
Synonym
Lepidium virginicum var. pubescens
(Under Lepidium virginicum subsp. menziesii)
Synonym
Lepidium virginicum var. robinsonii
(Under Lepidium virginicum subsp. menziesii)
Synonym
Lepidospartum
  ↳  Key to Lepidospartum
SCALE-BROOM
Lepidospartum latisquamumNative
Lepidospartum squamatumNative
Leptochloa
  ↳  Key to Leptochloa
Leptochloa dubiaGREEN SPRANGLETOPNative
Leptochloa fascicularis
(Under Leptochloa fusca subsp. fascicularis)
Synonym
Leptochloa filiformis
(Under Leptochloa panicea subsp. brachiata)
Synonym
Leptochloa fuscaSPRANGLETOPNative
Leptochloa fusca subsp. fascicularisBEARDED SPRANGLETOPNative
Leptochloa fusca subsp. fusca
(Under Leptochloa fusca)
Mentioned in
a note
Leptochloa fusca subsp. uninerviaMEXICAN SPRANGLETOPNative
Leptochloa mucronata
(Under Leptochloa panicea subsp. brachiata)
Synonym
Leptochloa panicea subsp. brachiataRED SPRANGLETOPNative
Leptochloa uninervia
(Under Leptochloa fusca subsp. uninervia)
Synonym
Leptochloa viscidaSTICKY SPRANGLETOP, SONORAN SPRANGLETOPNative
Leptodactylon californicum
(Under Linanthus californicus)
Synonym
Leptodactylon californicum subsp. brevitrichomum
(Under Linanthus californicus)
Synonym
Leptodactylon californicum subsp. californicum
(Under Linanthus californicus)
Synonym
Leptodactylon californicum subsp. glandulosum
(Under Linanthus californicus)
Synonym
Leptodactylon californicum subsp. leptotrichomum
(Under Linanthus californicus)
Synonym
Leptodactylon californicum subsp. tomentosum
(Under Linanthus californicus)
Synonym
Leptodactylon jaegeri
(Under Linanthus jaegeri)
Synonym
Leptodactylon pungens
(Under Linanthus pungens)
Synonym
Leptodactylon pungens subsp. hallii
(Under Linanthus pungens)
Synonym
Leptodactylon pungens subsp. hookeri
(Under Linanthus pungens)
Synonym
Leptodactylon pungens subsp. pulchriflorum
(Under Linanthus pungens)
Synonym
Leptosiphon
  ↳  Key to Leptosiphon
Leptosiphon acicularisBRISTLY LEPTOSIPHONNative
Leptosiphon ambiguusSERPENTINE LEPTOSIPHONNative
Leptosiphon androsaceusNative
Leptosiphon aureusNative
Leptosiphon aureus subsp. aureusNative
Leptosiphon aureus subsp. decorusNative
Leptosiphon bicolorNative
Leptosiphon bolanderiNative
Leptosiphon breviculusNative
Leptosiphon ciliatusWHISKER BRUSHNative
Leptosiphon croceusCOAST YELLOW LEPTOSIPHONNative
Leptosiphon filipesNative
Leptosiphon floribundusNative
Leptosiphon floribundus subsp. floribundusNative
Leptosiphon floribundus subsp. glaberNative
Leptosiphon floribundus subsp. halliiSANTA ROSA MOUNTAINS LEPTOSIPHONNative
Leptosiphon grandiflorusLARGE-FLOWERED LEPTOSIPHONNative
Leptosiphon harknessiiNative
Leptosiphon jepsoniiJEPSON'S LEPTOSIPHONNative
Leptosiphon laetus
(Under Leptosiphon parviflorus)
Synonym
Leptosiphon latisectusBROAD-LOBED LEPTOSIPHONNative
Leptosiphon lemmoniiNative
Leptosiphon liniflorusNative
Leptosiphon luteolus
(Under Leptosiphon parviflorus)
Synonym
Leptosiphon luteus
(Under Leptosiphon parviflorus)
Synonym
Leptosiphon melingii
(Under Leptosiphon floribundus)
Mentioned in
a note
Leptosiphon micranthus
(Under Leptosiphon parviflorus)
Synonym
Leptosiphon minimusNative
Leptosiphon montanusMUSTANG CLOVERNative
Leptosiphon nudatusNative
Leptosiphon nuttalliiNative
Leptosiphon nuttallii subsp. howelliiMOUNT TEDOC LEPTOSIPHONNative
Leptosiphon nuttallii subsp. nuttalliiNative
Leptosiphon nuttallii subsp. pubescensNative
Leptosiphon oblanceolatusSIERRA NEVADA LEPTOSIPHONNative
Leptosiphon pachyphyllusNative
Leptosiphon parviflorusNative
Leptosiphon pygmaeusNative
Leptosiphon pygmaeus subsp. continentalisNative
Leptosiphon pygmaeus subsp. pygmaeusPYGMY LEPTOSIPHONNative
Leptosiphon rattaniiRATTAN'S LEPTOSIPHONNative
Leptosiphon rosaceusROSE LEPTOSIPHONNative
Leptosiphon septentrionalisNative
Leptosiphon serrulatusMADERA LEPTOSIPHONNative
Leptospermum
Leptospermum laevigatumAUSTRALIAN TEA TREENaturalized
Leptosyne
  ↳  Key to Leptosyne
TICKSEED
Leptosyne bigeloviiNative
Leptosyne californicaNative
Leptosyne calliopsideaNative
Leptosyne douglasiiNative
Leptosyne giganteaGIANT TICKSEEDNative
Leptosyne hamiltoniiMOUNT HAMILTON TICKSEEDNative
Leptosyne maritimaSEA DAHLIANative
Leptosyne stillmaniiNative
Leptotaenia californica
(Under Lomatium californicum)
Synonym
Lepturus cylindricus
(Under Hainardia cylindrica)
Synonym
Lepus europaeus
(Under Vinca)
Mentioned in
a note
Lesquerella cordiformis
(Under Physaria cordiformis)
Synonym
Lesquerella cusickii
(Under Physaria occidentalis subsp. occidentalis)
Synonym
Lesquerella kingii
(Under Physaria kingii)
Synonym
Lesquerella kingii subsp. bernardina
(Under Physaria kingii subsp. bernardina)
Synonym
Lesquerella kingii subsp. kingii
(Under Physaria kingii subsp. kingii)
Synonym
Lesquerella kingii subsp. latifolia
(Under Physaria kingii subsp. latifolia)
Synonym
Lesquerella kingii var. cordiformis
(Under Physaria cordiformis)
Synonym
Lesquerella ludoviciana
(Under Physaria ludoviciana)
Synonym
Lesquerella occidentalis subsp. occidentalis
(Under Physaria occidentalis subsp. occidentalis)
Synonym
Lesquerella tenella
(Under Physaria tenella)
Synonym
Lesquerella wardii
(Under Physaria kingii subsp. latifolia)
Synonym
Lessingia
  ↳  Key to Lessingia
Lessingia arachnoideaCRYSTAL SPRINGS LESSINGIANative
Lessingia filaginifolia var. californica
(Under Corethrogyne filaginifolia)
Synonym
Lessingia filaginifolia var. filaginifolia
(Under Corethrogyne filaginifolia)
Synonym
Lessingia germanorumSAN FRANCISCO LESSINGIANative
Lessingia germanorum var. parvula
(Under Lessingia tenuis)
Synonym
Lessingia germanorum var. tenuis
(Under Lessingia tenuis)
Synonym
Lessingia glanduliferaNative
Lessingia glandulifera var. glanduliferaNative
Lessingia glandulifera var. glandulifera
(Under Lessingia pectinata var. tenuipes)
Synonym
Lessingia glandulifera var. pectinata
(Under Lessingia pectinata var. pectinata)
Synonym
Lessingia glandulifera var. peirsoniiNative
Lessingia glandulifera var. tomentosaWARNER SPRINGS LESSINGIANative
Lessingia hololeucaWOOLLY-HEADED LESSINGIANative
Lessingia hololeuca var. arachnoidea
(Under Lessingia arachnoidea)
Synonym
Lessingia lemmonii
(Under Lessingia glandulifera)
Mentioned in
a note
Lessingia lemmonii var. lemmonii
(Under Lessingia glandulifera var. glandulifera)
Synonym
Lessingia lemmonii var. peirsonii
(Under Lessingia glandulifera var. peirsonii)
Synonym
Lessingia lemmonii var. ramulosissima
(Under Lessingia glandulifera var. glandulifera)
Synonym
Lessingia leptocladaSIERRA LESSINGIANative
Lessingia micradeniaNative
Lessingia micradenia var. glabrataSMOOTH LESSINGIANative
Lessingia micradenia var. micradeniaTAMALPAIS LESSINGIANative
Lessingia nanaDWARF LESSINGIANative
Lessingia nemacladaNative
Lessingia nemaclada var. albiflora
(Under Lessingia nemaclada)
Synonym
Lessingia occidentalis
(Under Benitoa occidentalis)
Synonym
Lessingia pectinataNative
Lessingia pectinata var. pectinataNative
Lessingia pectinata var. tenuipesNative
Lessingia ramulosaNative
Lessingia tenuisSPRING LESSINGIANative
Lessingia virgataWAND LESSINGIANative
Leucanthemum
  ↳  Key to Leucanthemum
Leucanthemum lacustrePORTUGUESE DAISYNaturalized
Leucanthemum maximumSHASTA DAISYNaturalized
Leucanthemum paludosum
(Under Mauranthemum paludosum)
Synonym
Leucanthemum vulgareOX-EYE DAISYNaturalized
Leucelene ericoides
(Under Chaetopappa ericoides)
Synonym
Leucocraspedum albicaulis
(Under Frasera albicaulis)
Synonym
LeucocrinumSAND LILY
Leucocrinum montanumNative
Leucojum
Leucojum aestivumSNOWFLAKEWaif
Leucophysalis nana
(Under Chamaesaracha nana)
Synonym
Leucopoa kingii
(Under Festuca kingii)
Synonym
Leucoseris tenuifolia
(Under Malacothrix saxatilis var. tenuifolia)
Synonym
Leucosyris
  ↳  Key to Leucosyris
Leucosyris aridaSILVER LAKE DAISYNative
Leucosyris carnosaSHRUBBY ALKALI ASTERNative
Leucothoe
Leucothoe davisiaeSIERRA LAURELNative
Lewisia
  ↳  Key to Lewisia
Lewisia ×whiteaeNative
Lewisia alba
(Under Lewisia rediviva var. rediviva)
Synonym
Lewisia bernardina
(Under Lewisia nevadensis)
Synonym
Lewisia brachycalyxSHORT-SEPALED LEWISIANative
Lewisia brachycarpa
(Under Lewisia brachycalyx)
Synonym
Lewisia canteloviiCANTELOW'S LEWISIANative
Lewisia cantelowii
(Under Lewisia cantelovii)
Synonym
Lewisia columbiana
(Under Lewisia)
Mentioned in
a note
Lewisia columbiana subsp. congdonii
(Under Lewisia congdonii)
Synonym
Lewisia congdoniiCONGDON'S LEWISIANative
Lewisia cotyledonCLIFF MAIDSNative
Lewisia cotyledon var. cotyledonNative
Lewisia cotyledon var. heckneriHECKNER'S LEWISIANative
Lewisia cotyledon var. howelliiHOWELL'S LEWISIANative
Lewisia cotyledon var. purdyi
(Under Lewisia cotyledon var. cotyledon)
Synonym
Lewisia disepalaYOSEMITE LEWISIANative
Lewisia eastwoodiana
(Under Lewisia leeana)
Synonym
Lewisia exarticulata
(Under Lewisia pygmaea)
Synonym
Lewisia finchiae
(Under Lewisia cotyledon var. cotyledon)
Synonym
Lewisia glandulosaGLANDULAR LEWISIANative
Lewisia glandulosa
(Under Lewisia glandulosa)
Synonym
Lewisia heckneri
(Under Lewisia cotyledon var. heckneri)
Synonym
Lewisia howellii
(Under Lewisia cotyledon var. howellii)
Synonym
Lewisia kelloggiiKELLOGG'S LEWISIANative
Lewisia kelloggii subsp. hutchisoniiHUTCHISON'S LEWISIANative
Lewisia kelloggii subsp. kelloggiiNative
Lewisia leana
(Under Lewisia leeana)
Synonym
Lewisia leeanaQUILL-LEAVED LEWISIANative
Lewisia longipetalaLONG-PETALED LEWISIANative
Lewisia maguirei
(Under Lewisia)
Mentioned in
a note
Lewisia minima
(Under Lewisia pygmaea)
Synonym
Lewisia minor
(Under Lewisia rediviva var. minor)
Synonym
Lewisia nevadensisNEVADA LEWISIANative
Lewisia oppositifoliaOPPOSITE-LEAVED LEWISIANative
Lewisia purdyi
(Under Lewisia cotyledon var. cotyledon)
Synonym
Lewisia pygmaeaDWARF LEWISIANative
Lewisia pygmaea subsp. glandulosa
(Under Lewisia glandulosa)
Synonym
Lewisia pygmaea subsp. longipetala
(Under Lewisia longipetala)
Synonym
Lewisia pygmaea var. aridorum
(Under Lewisia pygmaea)
Synonym
Lewisia pygmaea var. nevadensis
(Under Lewisia nevadensis)
Synonym
Lewisia pygmaea var. sierrae
(Under Lewisia pygmaea)
Synonym
Lewisia redivivaNative
Lewisia rediviva subsp. minor
(Under Lewisia rediviva var. minor)
Synonym
Lewisia rediviva var. minorSMALL BITTERROOTNative
Lewisia rediviva var. redivivaBITTERROOTNative
Lewisia rediviva var. yosemitana
(Under Lewisia disepala)
Synonym
Lewisia sacajaweana
(Under Lewisia)
Mentioned in
a note
Lewisia sacajaweana
(Under Lewisia kelloggii)
Mentioned in
a note
Lewisia serrataSAW-TOOTHED LEWISIANative
Lewisia sierrae
(Under Lewisia pygmaea)
Synonym
Lewisia stebbinsiiSTEBBINS' LEWISIANative
Lewisia triphyllaTHREE-LEAVED LEWISIANative
Lewisia tweedyi
(Under Lewisia)
Mentioned in
a note
Leymus ×multiflorus (Gould) Barkworth & R.J. Atkins
(Under Elymus ×gouldii)
Synonym
Leymus ×vancouverensis (Vasey) Pilg.
(Under Elymus ×vancouverensis)
Synonym
Leymus californicus
(Under Elymus californicus)
Synonym
Leymus cinereus
(Under Elymus cinereus)
Synonym
Leymus condensatus
(Under Elymus condensatus)
Synonym
Leymus mollis subsp. mollis
(Under Elymus mollis subsp. mollis)
Synonym
Leymus pacificus
(Under Elymus pacificus)
Synonym
Leymus salina subsp. mojavensis
(Under Elymus salina)
Synonym
Leymus salinus subsp. mojavensis
(Under Elymus salina)
Synonym
Leymus triticoides
(Under Elymus triticoides)
Synonym
Libertia
Libertia formosaWaif
Libocedrus decurrens
(Under Calocedrus decurrens)
Synonym
Ligusticum
  ↳  Key to Ligusticum
Ligusticum apiifoliumNative
Ligusticum californicumNative
Ligusticum grayiNative
Ligustrum
  ↳  Key to Ligustrum
PRIVET
Ligustrum japonicumJAPANESE PRIVETNaturalized
Ligustrum lucidumCHINESE PRIVETNaturalized
Ligustrum ovalifoliumCALIFORNIA PRIVETNaturalized
Lilaea scilloides
(Under Triglochin scilloides)
Synonym
Lilaeopsis
  ↳  Key to Lilaeopsis
Lilaeopsis masoniiMASON'S LILAEOPSISNative
Lilaeopsis occidentalisNative
Liliaceae
  ↳  Key to Liliaceae
LILY FAMILY
Lilium
  ↳  Key to Lilium
LILY
Lilium bloomerianum var. ocellatum
(Under Lilium humboldtii subsp. ocellatum)
Synonym
Lilium bolanderiBOLANDER'S LILYNative
Lilium canadense var. parviflorum
(Under Lilium columbianum)
Synonym
Lilium canadense var. parvum
(Under Lilium parvum)
Synonym
Lilium columbianumCOLUMBIA LILYNative
Lilium fairchildii
(Under Lilium humboldtii subsp. ocellatum)
Synonym
Lilium fresnense
(Under Lilium kelleyanum)
Synonym
Lilium harrisianum
(Under Lilium pardalinum subsp. pardalinum)
Synonym
Lilium howellii
(Under Lilium bolanderi)
Synonym
Lilium humboldtiiNative
Lilium humboldtii subsp. humboldtiiHUMBOLDT LILYNative
Lilium humboldtii subsp. ocellatumOCELLATED HUMBOLDT LILYNative
Lilium humboldtii var. bloomerianum
(Under Lilium humboldtii subsp. ocellatum)
Synonym
Lilium humboldtii var. magnificum
(Under Lilium humboldtii subsp. ocellatum)
Synonym
Lilium humboldtii var. ocellatum
(Under Lilium humboldtii subsp. ocellatum)
Synonym
Lilium inyoense
(Under Lilium kelleyanum)
Synonym
Lilium kelleyanumKELLEY'S LILYNative
Lilium kelloggiiKELLOGG'S LILYNative
Lilium lucidum
(Under Lilium columbianum)
Synonym
Lilium maritimumCOAST LILYNative
Lilium nevadense
(Under Lilium pardalinum subsp. shastense)
Synonym
Lilium nevadense var. fresnense
(Under Lilium kelleyanum)
Synonym
Lilium nevadense var. monense
(Under Lilium kelleyanum)
Synonym
Lilium nevadense var. shastense
(Under Lilium pardalinum subsp. shastense)
Synonym
Lilium occidentaleWESTERN LILYNative
Lilium ocellatum
(Under Lilium humboldtii subsp. ocellatum)
Synonym
Lilium pardalinumNative
Lilium pardalinum subsp. pardalinumLEOPARD LILYNative
Lilium pardalinum subsp. pitkinensePITKIN MARSH LILYNative
Lilium pardalinum subsp. shastenseSHASTA LILYNative
Lilium pardalinum subsp. vollmeriVOLLMER'S LILYNative
Lilium pardalinum subsp. wigginsiiWIGGINS' LILYNative
Lilium pardalinum var. angustifolium
(Under Lilium pardalinum subsp. pardalinum)
Synonym
Lilium pardalinum var. parviflorum
(Under Lilium kelleyanum)
Synonym
Lilium parryiLEMON LILYNative
Lilium parryi var. kessleri
(Under Lilium parryi)
Synonym
Lilium parviflorum
(Under Lilium columbianum)
Synonym
Lilium parviflorum var. luteum
(Under Lilium pardalinum subsp. shastense)
Synonym
Lilium parvumALPINE LILY, SIERRA TIGER LILYNative
Lilium parvum var. crocatum
(Under Lilium parvum)
Synonym
Lilium parvum var. luteum
(Under Lilium pardalinum subsp. shastense)
Synonym
Lilium pitkinense
(Under Lilium pardalinum subsp. pitkinense)
Synonym
Lilium purpureum
(Under Lilium washingtonianum subsp. purpurascens)
Synonym
Lilium roezlii
(Under Lilium pardalinum subsp. pardalinum)
Synonym
Lilium rubescensREDWOOD LILYNative
Lilium shastense
(Under Lilium pardalinum subsp. shastense)
Synonym
Lilium vollmeri
(Under Lilium pardalinum subsp. vollmeri)
Synonym
Lilium washingtonianumWASHINGTON LILYNative
Lilium washingtonianum subsp. purpurascensPURPLE-FLOWERED WASHINGTON LILYNative
Lilium washingtonianum subsp. washingtonianumNative
Lilium washingtonianum var. minor
(Under Lilium washingtonianum subsp. washingtonianum)
Synonym
Lilium washingtonianum var. purpurascens
(Under Lilium washingtonianum subsp. purpurascens)
Synonym
Lilium washingtonianum var. purpureum
(Under Lilium rubescens)
Synonym
Lilium washingtonianum var. purpureum
(Under Lilium washingtonianum subsp. purpurascens)
Synonym
Lilium wigginsii
(Under Lilium pardalinum subsp. wigginsii)
Synonym
Limnanthaceae
  ↳  Key to Limnanthaceae
MEADOWFOAM FAMILY
Limnanthes
  ↳  Key to Limnanthes
MEADOWFOAM
Limnanthes albaNative
Limnanthes alba subsp. albaNative
Limnanthes alba subsp. parishiiNative
Limnanthes alba subsp. versicolorNative
Limnanthes bakeriBAKER'S MEADOWFOAMNative
Limnanthes douglasiiNative
Limnanthes douglasii subsp. douglasiiNative
Limnanthes douglasii subsp. niveaNative
Limnanthes douglasii subsp. roseaNative
Limnanthes douglasii subsp. striataNative
Limnanthes douglasii subsp. sulphureaPOINT REYES MEADOWFOAMNative
Limnanthes floccosaNative
Limnanthes floccosa subsp. bellingerianaBELLINGER'S MEADOWFOAMNative
Limnanthes floccosa subsp. californicaBUTTE COUNTY MEADOWFOAMNative
Limnanthes floccosa subsp. floccosaWOOLLY MEADOWFOAMNative
Limnanthes gracilis subsp. parishii
(Under Limnanthes alba subsp. parishii)
Synonym
Limnanthes macounii
(Under Limnanthes)
Mentioned in
a note
Limnanthes montanaNative
Limnanthes striata
(Under Limnanthes douglasii subsp. striata)
Synonym
Limnanthes versicolor var. parishii
(Under Limnanthes alba subsp. parishii)
Synonym
Limnanthes vinculansSEBASTOPOL MEADOWFOAMNative
LimnobiumFROGBIT
Limnobium laevigatum
(Under Limnobium spongia)
Synonym
Limnobium spongiaAMERICAN FROGBITNaturalized
Limonium
  ↳  Key to Limonium
SEA-LAVENDER, MARSH-ROSEMARY
Limonium arborescens
(Under Limonium)
Mentioned in
a note
Limonium brassicifoliumWaif
Limonium californicumWESTERN MARSH-ROSEMARYNative
Limonium californicum var. mexicanum
(Under Limonium californicum)
Synonym
Limonium duriusculumNaturalized
Limonium otolepisWaif
Limonium pereziiNaturalized
Limonium perfoliatum
(Under Limonium otolepis)
Synonym
Limonium preauxiiWaif
Limonium ramosissimumNaturalized
Limonium sinuatumNaturalized
Limonium sventeniiWaif
Limosella
  ↳  Key to Limosella
MUDWORT
Limosella acaulisNative
Limosella aquaticaNative
Limosella australisDELTA MUDWORTNaturalized
Limosella subulata
(Under Limosella australis)
Synonym
Linaceae
  ↳  Key to Linaceae
FLAX FAMILY
Linanthastrum nuttallii subsp. pubescens
(Under Leptosiphon nuttallii subsp. pubescens)
Synonym
Linanthastrum pachyphyllum
(Under Leptosiphon pachyphyllus)
Synonym
Linanthus
  ↳  Key to Linanthus
Linanthus acicularis
(Under Leptosiphon acicularis)
Synonym
Linanthus ambiguus
(Under Leptosiphon ambiguus)
Synonym
Linanthus androsaceus
(Under Leptosiphon androsaceus)
Synonym
Linanthus androsaceus subsp. laetus
(Under Leptosiphon parviflorus)
Synonym
Linanthus arenicolaSAND LINANTHUSNative
Linanthus aureus subsp. aureus
(Under Leptosiphon aureus subsp. aureus)
Synonym
Linanthus aureus subsp. decorus
(Under Leptosiphon aureus subsp. decorus)
Synonym
Linanthus bakeri
(Under Leptosiphon bolanderi)
Synonym
Linanthus bellusDESERT BEAUTYNative
Linanthus bernardinusPIONEERTOWN LINANTHUSNative
Linanthus bicolor
(Under Leptosiphon bicolor)
Synonym
Linanthus bicolor subsp. minimus
(Under Leptosiphon minimus)
Synonym
Linanthus bigeloviiNative
Linanthus bolanderi
(Under Leptosiphon bolanderi)
Synonym
Linanthus breviculus
(Under Leptosiphon breviculus)
Synonym
Linanthus californicusPRICKLY PHLOXNative
Linanthus campanulatusNative
Linanthus ciliatus
(Under Leptosiphon ciliatus)
Synonym
Linanthus concinnusSAN GABRIEL LINANTHUSNative
Linanthus croceus
(Under Leptosiphon croceus)
Synonym
Linanthus demissusNative
Linanthus dianthiflorusNative
Linanthus dianthiflorus subsp. farinosus
(Under Linanthus dianthiflorus)
Synonym
Linanthus dichotomusNative
Linanthus dichotomus subsp. dichotomusEVENING SNOWNative
Linanthus dichotomus subsp. meridianusNative
Linanthus filiformisNative
Linanthus filipes
(Under Leptosiphon filipes)
Synonym
Linanthus floribundus subsp. floribundus
(Under Leptosiphon floribundus subsp. floribundus)
Synonym
Linanthus floribundus subsp. glaber
(Under Leptosiphon floribundus subsp. glaber)
Synonym
Linanthus floribundus subsp. hallii
(Under Leptosiphon floribundus subsp. hallii)
Synonym
Linanthus grandiflorus
(Under Leptosiphon grandiflorus)
Synonym
Linanthus harknessii
(Under Leptosiphon harknessii)
Synonym
Linanthus harknessii subsp. condensatus
(Under Leptosiphon harknessii)
Synonym
Linanthus inyoensisNative
Linanthus jaegeriSAN JACINTO LINANTHUSNative
Linanthus jepsonii
(Under Leptosiphon jepsonii)
Synonym
Linanthus jonesiiNative
Linanthus killipiiBALDWIN LAKE LINANTHUSNative
Linanthus latisectus
(Under Leptosiphon latisectus)
Synonym
Linanthus lemmonii
(Under Leptosiphon lemmonii)
Synonym
Linanthus liniflorus
(Under Leptosiphon liniflorus)
Synonym
Linanthus liniflorus subsp. pharnaceoides
(Under Leptosiphon liniflorus)
Synonym
Linanthus maculatusLITTLE SAN BERNARDINO MOUNTAINS LINANTHUSNative
Linanthus montanus
(Under Leptosiphon montanus)
Synonym
Linanthus nudatus
(Under Leptosiphon nudatus)
Synonym
Linanthus nuttallii subsp. floribundus
(Under Leptosiphon floribundus subsp. floribundus)
Synonym
Linanthus nuttallii subsp. howellii
(Under Leptosiphon nuttallii subsp. howellii)
Synonym
Linanthus nuttallii subsp. nuttallii
(Under Leptosiphon nuttallii subsp. nuttallii)
Synonym
Linanthus nuttallii subsp. pubescens
(Under Leptosiphon nuttallii subsp. pubescens)
Synonym
Linanthus oblanceolatus
(Under Leptosiphon oblanceolatus)
Synonym
Linanthus orcuttiiORCUTT'S LINANTHUSNative
Linanthus pachyphyllus
(Under Leptosiphon pachyphyllus)
Synonym
Linanthus parryaeNative
Linanthus parviflorus
(Under Leptosiphon parviflorus)
Synonym
Linanthus parviflorus var. rosaceus
(Under Leptosiphon rosaceus)
Synonym
Linanthus plaskettii
(Under Leptosiphon parviflorus)
Synonym
Linanthus pungensGRANITE GILIANative
Linanthus pygmaeus subsp. continentalis
(Under Leptosiphon pygmaeus subsp. continentalis)
Synonym
Linanthus pygmaeus subsp. pygmaeus
(Under Leptosiphon pygmaeus subsp. pygmaeus)
Synonym
Linanthus rattanii
(Under Leptosiphon rattanii)
Synonym
Linanthus rosaceus
(Under Leptosiphon rosaceus)
Synonym
Linanthus septentrionalis
(Under Leptosiphon septentrionalis)
Synonym
Linanthus serrulatus
(Under Leptosiphon serrulatus)
Synonym
Linaria
  ↳  Key to Linaria
TOADFLAX
Linaria bipartitaNaturalized
Linaria canadensis
(Under Nuttallanthus texanus)
Synonym
Linaria canadensis
(Under Linaria)
Mentioned in
a note
Linaria canadensis var. texana
(Under Nuttallanthus texanus)
Synonym
Linaria dalmatica subsp. dalmaticaDALMATIAN TOADFLAXNaturalized
Linaria genistifolia subsp. dalmatica
(Under Linaria dalmatica subsp. dalmatica)
Synonym
Linaria maroccanaNaturalized
Linaria pinifoliaNaturalized
Linaria purpureaWaif
Linaria reticulata
(Under Linaria pinifolia)
Synonym
Linaria supina
(Under Linaria)
Mentioned in
a note
Linaria vulgarisBUTTER-AND-EGGSNaturalized
LinderniaFALSE PIMPERNEL
Lindernia dubiaNative
Lindernia dubia var. anagallidea
(Under Lindernia dubia)
Synonym
Lindernia dubia var. dubia
(Under Lindernia dubia)
Synonym
LinnaeaTWIN FLOWER
Linnaea borealis subsp. americana
(Under Linnaea borealis var. longiflora)
Synonym
Linnaea borealis var. longifloraNative
LinnaeaceaeTWIN FLOWER FAMILY
Linum
  ↳  Key to Linum
FLAX
Linum angustifolium
(Under Linum bienne)
Synonym
Linum bienneNaturalized
Linum clevelandii
(Under Hesperolinon clevelandii)
Synonym
Linum congestum
(Under Hesperolinon congestum)
Synonym
Linum drymarioides
(Under Hesperolinon drymarioides)
Synonym
Linum grandiflorumNaturalized
Linum lewisii var. alpicola
(Under Linum lewisii var. lewisii)
Synonym
Linum lewisii var. lewisiiNative
Linum micranthum
(Under Hesperolinon micranthum)
Synonym
Linum perenne
(Under Linum)
Mentioned in
a note
Linum perenne
(Under Linum lewisii var. lewisii)
Mentioned in
a note
Linum perenne subsp. lewisii
(Under Linum lewisii var. lewisii)
Synonym
Linum puberulumPLAINS FLAXNative
Linum spergulinum
(Under Hesperolinon spergulinum)
Synonym
Linum usitatissimumNaturalized
Lipocarpha
  ↳  Key to Lipocarpha
Lipocarpha aristulataNative
Lipocarpha micranthaNative
Lipocarpha occidentalisNative
Lippia lanceolata
(Under Phyla lanceolata)
Synonym
Lippia wrightii
(Under Aloysia wrightii)
Synonym
Listera
  ↳  Key to Listera
TWAYBLADE
Listera banksianaNORTHWEST TWAYBLADENative
Listera caurina
(Under Listera banksiana)
Synonym
Listera convallarioidesBROAD-LEAVED TWAYBLADENative
Listera cordataHEART-LEAVED TWAYBLADENative
Listera cordata var. cordata
(Under Listera cordata)
Synonym
Listera cordata var. nephrophylla
(Under Listera cordata)
Synonym
Listera nephrophylla
(Under Listera cordata)
Synonym
Listera retusa
(Under Listera banksiana)
Synonym
Lithocarpus densiflorus
(Under Notholithocarpus densiflorus)
Synonym
Lithocarpus densiflorus
(Under Fagaceae)
Mentioned in
a note
Lithocarpus densiflorus var. densiflorus
(Under Notholithocarpus densiflorus var. densiflorus)
Synonym
Lithocarpus densiflorus var. echinoides
(Under Notholithocarpus densiflorus var. echinoides)
Synonym
Lithophragma
  ↳  Key to Lithophragma
WOODLAND STAR
Lithophragma affineNative
Lithophragma affine subsp. mixtum
(Under Lithophragma affine)
Synonym
Lithophragma bolanderiNative
Lithophragma breviloba
(Under Lithophragma tenellum)
Synonym
Lithophragma bulbiferum
(Under Lithophragma glabrum)
Synonym
Lithophragma campanulatumNative
Lithophragma cymbalariaNative
Lithophragma glabrumNative
Lithophragma heterophyllumNative
Lithophragma maximumSAN CLEMENTE ISLAND WOODLAND STARNative
Lithophragma parviflorumNative
Lithophragma parviflorum var. parviflorumNative
Lithophragma parviflorum var. trifoliatumNative
Lithophragma rupicola
(Under Lithophragma tenellum)
Synonym
Lithophragma scabrella
(Under Lithophragma bolanderi)
Synonym
Lithophragma tenellumNative
Lithophragma trifoliatum
(Under Lithophragma parviflorum var. trifoliatum)
Synonym
Lithophragma tripartitum
(Under Lithophragma affine)
Synonym
Lithospermum
  ↳  Key to Lithospermum
STONESEED
Lithospermum arvenseGROMWELLNaturalized
Lithospermum californicumCALIFORNIA STONESEEDNative
Lithospermum incisumPLAINS STONESEEDNative
Lithospermum ruderaleWESTERN STONESEEDNative
Loasaceae
  ↳  Key to Loasaceae
LOASA FAMILY
Lobelia
  ↳  Key to Lobelia
Lobelia cardinalis subsp. graminea
(Under Lobelia cardinalis var. pseudosplendens)
Mentioned in
a note
Lobelia cardinalis var. multiflora
(Under Lobelia cardinalis var. pseudosplendens)
Mentioned in
a note
Lobelia cardinalis var. pseudosplendensCARDINAL FLOWERNative
Lobelia dunnii var. serrataNative
Lobelia erinusWaif
LobulariaSWEET ALYSSUM
Lobularia maritimaNaturalized
Loeflingia
Loeflingia pusilla
(Under Loeflingia squarrosa)
Synonym
Loeflingia squarrosaSPREADING PYGMYLEAFNative
Loeflingia squarrosa subsp. artemisiarum
(Under Loeflingia squarrosa)
Synonym
Loeflingia squarrosa subsp. squarosa
(Under Loeflingia squarrosa)
Synonym
Loeflingia squarrosa var. artemisiarum
(Under Loeflingia squarrosa)
Synonym
Loeflingia squarrosa var. squarrosa
(Under Loeflingia squarrosa)
Synonym
Loeselia tenuifolia
(Under Ipomopsis tenuifolia)
Synonym
Loeseliastrum
  ↳  Key to Loeseliastrum
Loeseliastrum depressumDEPRESSED STANDING-CYPRESSNative
Loeseliastrum matthewsiiDESERT CALICONative
Loeseliastrum schottiiNative
Logfia
  ↳  Key to Logfia
Logfia arizonicaARIZONA COTTONROSENative
Logfia arvensis
(Under Logfia)
Mentioned in
a note
Logfia depressaHIERBA LIMPIANative
Logfia filaginoidesCALIFORNIA COTTONROSENative
Logfia gallicaDAGGERLEAF COTTONROSENaturalized
Logfia minima
(Under Logfia)
Mentioned in
a note
Lolium arundinaceum
(Under Festuca arundinacea)
Synonym
Lolium multiflorum
(Under Festuca perennis)
Synonym
Lolium perenne
(Under Festuca perennis)
Synonym
Lolium perenne var. multiflorum
(Under Festuca perennis)
Synonym
Lolium pratense
(Under Festuca pratensis)
Synonym
Lolium rigidum
(Under Festuca)
Mentioned in
a note
Lolium strictum
(Under Festuca perennis)
Synonym
Lolium temulentum
(Under Festuca temulenta)
Synonym
Lolium temulentum subsp. remotum
(Under Festuca temulenta)
Mentioned in
a note
Lomatium
  ↳  Key to Lomatium
Lomatium alatum
(Under Lomatium triternatum var. macrocarpum)
Synonym
Lomatium bicolor var. bicolor
(Under Lomatium bicolor var. leptocarpum)
Mentioned in
a note
Lomatium bicolor var. leptocarpumNative
Lomatium californicumNative
Lomatium canbyiCANBY'S LOMATIUMNative
Lomatium caruifoliumNative
Lomatium caruifolium var. caruifoliumNative
Lomatium caruifolium var. denticulatumNative
Lomatium ciliolatumNative
Lomatium ciliolatum var. hooveri
(Under Lomatium hooveri)
Synonym
Lomatium congdoniiCONGDON'S LOMATIUMNative
Lomatium dasycarpumNative
Lomatium dasycarpum subsp. dasycarpumNative
Lomatium dasycarpum subsp. tomentosumNative
Lomatium dissectumNative
Lomatium dissectum var. dissectumNative
Lomatium dissectum var. multifidumNative
Lomatium engelmanniiENGELMANN'S LOMATIUMNative
Lomatium foeniculaceumNative
Lomatium foeniculaceum subsp. fimbriatumNative
Lomatium foeniculaceum subsp. inyoenseINYO LOMATIUMNative
Lomatium foeniculaceum subsp. macdougaliiMACDOUGAL'S LOMATIUMNative
Lomatium foeniculaceum var. macdougalii
(Under Lomatium foeniculaceum subsp. macdougalii)
Synonym
Lomatium giganteum
(Under Lomatium triternatum var. macrocarpum)
Synonym
Lomatium grayiGRAY'S LOMATIUMNative
Lomatium halliiNative
Lomatium hendersoniiHENDERSON'S LOMATIUMNative
Lomatium hooveriHOOVER'S LOMATIUMNative
Lomatium howelliiHOWELL'S LOMATIUMNative
Lomatium humile
(Under Lomatium caruifolium var. denticulatum)
Synonym
Lomatium insulareSAN NICOLAS ISLAND LOMATIUMNative
Lomatium inyoense
(Under Lomatium foeniculaceum subsp. inyoense)
Synonym
Lomatium leptocarpum
(Under Lomatium bicolor var. leptocarpum)
Synonym
Lomatium lucidumNative
Lomatium lucidum var. repostum
(Under Lomatium repostum)
Synonym
Lomatium macrocarpumNative
Lomatium macrocarpum var. ellipticum
(Under Lomatium macrocarpum)
Synonym
Lomatium marginatumNative
Lomatium marginatum var. marginatumNative
Lomatium marginatum var. purpureumNative
Lomatium martindaleiCOAST RANGE LOMATIUMNative
Lomatium microcarpum
(Under Lomatium hallii)
Synonym
Lomatium mohavenseNative
Lomatium nelsonianum
(Under Lomatium hallii)
Synonym
Lomatium nevadenseNative
Lomatium nevadense var. holopterum
(Under Lomatium nevadense var. parishii)
Synonym
Lomatium nevadense var. nevadenseNative
Lomatium nevadense var. parishiiNative
Lomatium nevadense var. pseudorientale
(Under Lomatium nevadense var. parishii)
Synonym
Lomatium nudicauleNative
Lomatium nudicaule var. puberulum
(Under Lomatium triternatum var. triternatum)
Synonym
Lomatium observatoriumMOUNT HAMILTON LOMATIUMNative
Lomatium parryiNative
Lomatium parvifoliumSMALL-LEAVED LOMATIUMNative
Lomatium parvifolium var. pallidum
(Under Lomatium parvifolium)
Synonym
Lomatium peckianumPECK'S LOMATIUMNative
Lomatium piperiNative
Lomatium plummeraeNative
Lomatium plummerae var. austiniae
(Under Lomatium plummerae)
Synonym
Lomatium plummerae var. sonnei
(Under Lomatium plummerae)
Synonym
Lomatium raveniiRAVEN'S LOMATIUMNative
Lomatium repostumNAPA LOMATIUMNative
Lomatium rigidumSTIFF LOMATIUMNative
Lomatium roseanum
(Under Lomatium)
Mentioned in
a note
Lomatium roseanum
(Under Lomatium hendersonii)
Mentioned in
a note
Lomatium shevockiiOWENS PEAK LOMATIUMNative
Lomatium stebbinsiiSTEBBINS' LOMATIUMNative
Lomatium tomentosum
(Under Lomatium dasycarpum subsp. tomentosum)
Synonym
Lomatium torreyiNative
Lomatium tracyiTRACY'S LOMATIUMNative
Lomatium triternatumNative
Lomatium triternatum var. anomalum
(Under Lomatium triternatum)
Mentioned in
a note
Lomatium triternatum var. macrocarpumNative
Lomatium triternatum var. triternatumNative
Lomatium utriculatumNative
Lomatium vaginatumNative
Lomatium vaseyi
(Under Lomatium utriculatum)
Synonym
Lonicera
  ↳  Key to Lonicera
HONEYSUCKLE
Lonicera caerulea var. cauriana
(Under Lonicera cauriana)
Synonym
Lonicera caurianaNative
Lonicera ciliosaORANGE HONEYSUCKLENative
Lonicera conjugialisNative
Lonicera etruscaWaif
Lonicera hispidulaNative
Lonicera hispidula var. californica
(Under Lonicera hispidula)
Synonym
Lonicera hispidula var. hispidula
(Under Lonicera hispidula)
Synonym
Lonicera hispidula var. vacillans
(Under Lonicera hispidula)
Synonym
Lonicera interruptaNative
Lonicera involucrataTWINBERRYNative
Lonicera involucrata var. involucrataNative
Lonicera involucrata var. ledebouriiNative
Lonicera japonicaJAPANESE HONEYSUCKLENaturalized
Lonicera subspicataNative
Lonicera subspicata var. denudataNative
Lonicera subspicata var. johnstonii
(Under Lonicera subspicata var. denudata)
Synonym
Lonicera subspicata var. subspicataSANTA BARBARA HONEYSUCKLENative
Lonicera tataricaNaturalized
Lophochloa cristata
(Under Koeleria gerardi)
Synonym
Lorandersonia peirsonii
(Under Tonestus peirsonii)
Synonym
Lotus
  ↳  Key to Lotus
Lotus aboriginus
(Under Hosackia rosea)
Synonym
Lotus angustissimusNaturalized
Lotus argophyllus
(Under Acmispon argophyllus)
Synonym
Lotus argophyllus subsp. adsurgens
(Under Acmispon argophyllus var. adsurgens)
Synonym
Lotus argophyllus subsp. niveus
(Under Acmispon argophyllus var. niveus)
Synonym
Lotus argophyllus var. adsurgens
(Under Acmispon argophyllus var. adsurgens)
Synonym
Lotus argophyllus var. argenteus
(Under Acmispon argophyllus var. argenteus)
Synonym
Lotus argophyllus var. argophyllus
(Under Acmispon argophyllus var. argophyllus)
Synonym
Lotus argophyllus var. decorus
(Under Acmispon argophyllus var. argophyllus)
Synonym
Lotus argophyllus var. fremontii
(Under Acmispon argophyllus var. fremontii)
Synonym
Lotus argophyllus var. niveus
(Under Acmispon argophyllus var. niveus)
Synonym
Lotus argophyllus var. ornithopus
(Under Acmispon argophyllus var. argenteus)
Synonym
Lotus argyraeus
(Under Acmispon argyraeus)
Synonym
Lotus argyraeus subsp. argyraeus
(Under Acmispon argyraeus var. argyraeus)
Synonym
Lotus argyraeus subsp. multicaulis
(Under Acmispon argyraeus var. multicaulis)
Synonym
Lotus argyraeus var. argyraeus
(Under Acmispon argyraeus var. argyraeus)
Synonym
Lotus argyraeus var. multicaulis
(Under Acmispon argyraeus var. multicaulis)
Synonym
Lotus argyraeus var. notitius
(Under Acmispon argyraeus var. notitius)
Synonym
Lotus benthamii
(Under Acmispon cytisoides)
Synonym
Lotus corniculatusBIRD'S-FOOT TREFOILNaturalized
Lotus crassifolius var. crassifolius
(Under Hosackia crassifolia var. crassifolia)
Synonym
Lotus crassifolius var. otayensis
(Under Hosackia crassifolia var. otayensis)
Synonym
Lotus cupreus
(Under Hosackia oblongifolia var. cuprea)
Synonym
Lotus davidsonii
(Under Acmispon nevadensis var. davidsonii)
Synonym
Lotus dendroideus
(Under Acmispon dendroideus)
Synonym
Lotus dendroideus
(Under Acmispon glaber var. glaber)
Mentioned in
a note
Lotus dendroideus var. dendroideus
(Under Acmispon dendroideus var. dendroideus)
Synonym
Lotus dendroideus var. traskiae
(Under Acmispon dendroideus var. traskiae)
Synonym
Lotus dendroideus var. veatchii
(Under Acmispon dendroideus var. veatchii)
Synonym
Lotus denticulatus
(Under Acmispon denticulatus)
Synonym
Lotus douglasii
(Under Acmispon nevadensis var. nevadensis)
Synonym
Lotus formosissimus
(Under Hosackia gracilis)
Synonym
Lotus glaber
(Under Lotus tenuis)
Synonym
Lotus grandiflorus
(Under Acmispon grandiflorus)
Synonym
Lotus grandiflorus var. grandiflorus
(Under Acmispon grandiflorus var. grandiflorus)
Synonym
Lotus grandiflorus var. macranthus
(Under Acmispon grandiflorus var. macranthus)
Synonym
Lotus grandiflorus var. mutabilis
(Under Acmispon grandiflorus var. grandiflorus)
Synonym
Lotus hamatus
(Under Acmispon micranthus)
Synonym
Lotus haydonii
(Under Acmispon haydonii)
Synonym
Lotus heermannii
(Under Acmispon heermannii)
Synonym
Lotus heermannii var. eriophorus
(Under Acmispon heermannii var. orbicularis)
Synonym
Lotus heermannii var. heermannii
(Under Acmispon heermannii var. heermannii)
Synonym
Lotus heermannii var. orbicularis
(Under Acmispon heermannii var. orbicularis)
Synonym
Lotus humistratus
(Under Acmispon brachycarpus)
Synonym
Lotus incanus
(Under Hosackia incana)
Synonym
Lotus junceus
(Under Acmispon junceus)
Synonym
Lotus junceus var. biolettii
(Under Acmispon junceus var. biolettii)
Synonym
Lotus junceus var. junceus
(Under Acmispon junceus var. junceus)
Synonym
Lotus micranthus
(Under Acmispon parviflorus)
Synonym
Lotus micranthus
(Under Acmispon micranthus)
Mentioned in
a note
Lotus neo-incanus
(Under Hosackia incana)
Synonym
Lotus nevadensis
(Under Acmispon nevadensis)
Synonym
Lotus nevadensis var. davidsonii
(Under Acmispon nevadensis var. davidsonii)
Synonym
Lotus nevadensis var. douglasii
(Under Acmispon nevadensis var. nevadensis)
Synonym
Lotus nevadensis var. nevadensis
(Under Acmispon nevadensis var. nevadensis)
Synonym
Lotus nuttallianus
(Under Acmispon prostratus)
Synonym
Lotus oblongifolius var. cupreus
(Under Hosackia oblongifolia var. cuprea)
Synonym
Lotus oblongifolius var. nevadensis
(Under Hosackia oblongifolia var. oblongifolia)
Synonym
Lotus oblongifolius var. oblongifolius
(Under Hosackia oblongifolia var. oblongifolia)
Synonym
Lotus pinnatus
(Under Hosackia pinnata)
Synonym
Lotus procumbens
(Under Acmispon procumbens)
Synonym
Lotus procumbens var. jepsonii
(Under Acmispon procumbens var. jepsonii)
Synonym
Lotus procumbens var. procumbens
(Under Acmispon procumbens var. procumbens)
Synonym
Lotus purshianus var. glaber
(Under Acmispon americanus var. americanus)
Synonym
Lotus purshianus var. purshianus
(Under Acmispon americanus var. americanus)
Synonym
Lotus rigidus
(Under Acmispon rigidus)
Synonym
Lotus rubriflorus
(Under Acmispon rubriflorus)
Synonym
Lotus salsuginosus
(Under Acmispon maritimus)
Synonym
Lotus salsuginosus subsp. brevivexillus
(Under Acmispon maritimus var. brevivexillus)
Synonym
Lotus salsuginosus subsp. salsuginosus
(Under Acmispon maritimus var. maritimus)
Synonym
Lotus salsuginosus var. brevivexillus
(Under Acmispon maritimus var. brevivexillus)
Synonym
Lotus salsuginosus var. salsuginosus
(Under Acmispon maritimus var. maritimus)
Synonym
Lotus scoparius
(Under Acmispon glaber)
Synonym
Lotus scoparius
(Under Acmispon glaber var. brevialatus)
Synonym
Lotus scoparius subsp. scoparius
(Under Acmispon glaber var. glaber)
Synonym
Lotus scoparius subsp. traskiae
(Under Acmispon dendroideus var. traskiae)
Synonym
Lotus scoparius var. brevialatus
(Under Acmispon glaber var. brevialatus)
Synonym
Lotus scoparius var. dendroideus
(Under Acmispon dendroideus var. dendroideus)
Synonym
Lotus scoparius var. scoparius
(Under Acmispon glaber var. glaber)
Synonym
Lotus scoparius var. veatchii
(Under Acmispon dendroideus var. veatchii)
Synonym
Lotus stipularis
(Under Hosackia stipularis)
Synonym
Lotus stipularis var. ottleyi
(Under Hosackia stipularis var. ottleyi)
Synonym
Lotus stipularis var. stipularis
(Under Hosackia stipularis var. stipularis)
Synonym
Lotus strigosus
(Under Acmispon strigosus)
Synonym
Lotus strigosus var. hirtellus
(Under Acmispon strigosus)
Synonym
Lotus strigosus var. tomentellus
(Under Acmispon strigosus)
Synonym
Lotus subpinnatus
(Under Acmispon wrangelianus)
Synonym
Lotus tenuisNaturalized
Lotus tomentellus
(Under Acmispon strigosus)
Synonym
Lotus uliginosusNaturalized
Lotus wrangelianus
(Under Acmispon wrangelianus)
Synonym
Lotus yollabolliensis
(Under Hosackia yollabolliensis)
Synonym
Ludwigia
  ↳  Key to Ludwigia
FALSE LOOSESTRIFE, WATER PRIMROSE
Ludwigia grandifloraLARGE-FLOWERED PRIMROSE-WILLOWNaturalized
Ludwigia grandiflora subsp. hexapetala
(Under Ludwigia hexapetala)
Synonym
Ludwigia hexapetalaURUGUAYAN PRIMROSE-WILLOWNaturalized
Ludwigia natans var. stipitata
(Under Ludwigia repens)
Synonym
Ludwigia palustrisNative
Ludwigia palustris var. americana
(Under Ludwigia palustris)
Synonym
Ludwigia palustris var. pacifica
(Under Ludwigia palustris)
Synonym
Ludwigia peploidesNaturalized
Ludwigia peploides subsp. montevidensisNaturalized
Ludwigia peploides subsp. peploidesNaturalized
Ludwigia repensNative
Ludwigia repens var. stipitata
(Under Ludwigia repens)
Synonym
Luetkea
Luetkea pectinataNative
Luina
Luina hypoleucaNative
Luma
Luma apiculataARRAYAN, TEMUWaif
LunariaMONEY PLANT, HONESTY
Lunaria annuaNaturalized
Lupinus
  ↳  Key to Lupinus
LUPINE
Lupinus arenicola
(Under Lupinus microcarpus var. horizontalis)
Synonym
Lupinus abramsii
(Under Lupinus albifrons var. abramsii)
Synonym
Lupinus adsurgensNative
Lupinus adsurgens var. lilacinus
(Under Lupinus antoninus)
Synonym
Lupinus adsurgens var. lilacinus
(Under Lupinus adsurgens)
Mentioned in
a note
Lupinus adsurgens var. undulatus
(Under Lupinus dalesiae)
Synonym
Lupinus adsurgens var. undulatus
(Under Lupinus adsurgens)
Mentioned in
a note
Lupinus affinisNative
Lupinus albicaulisNative
Lupinus albicaulis var. shastensis
(Under Lupinus albicaulis)
Mentioned in
a note
Lupinus albicaulis var. silvestris
(Under Lupinus elmeri)
Synonym
Lupinus albifronsNative
Lupinus albifrons var. abramsiiABRAMS' LUPINENative
Lupinus albifrons var. albifronsNative
Lupinus albifrons var. collinusNative
Lupinus albifrons var. douglasiiNative
Lupinus albifrons var. flumineus
(Under Lupinus albifrons var. collinus)
Synonym
Lupinus andersoniiNative
Lupinus andersonii var. apertus
(Under Lupinus apertus)
Synonym
Lupinus andersonii var. christinae
(Under Lupinus angustiflorus)
Synonym
Lupinus angustiflorusNative
Lupinus antoninusANTHONY PEAK LUPINENative
Lupinus apertusNative
Lupinus arboreusYELLOW BUSH LUPINENative
Lupinus arboreus var. eximius
(Under Lupinus arboreus)
Mentioned in
a note
Lupinus arbustusSPUR LUPINENative
Lupinus arbustus subsp. calcaratus
(Under Lupinus arbustus)
Synonym
Lupinus arbustus subsp. silvicola
(Under Lupinus arbustus)
Synonym
Lupinus arbustus var. montanus
(Under Lupinus arbustus)
Synonym
Lupinus argenteusNative
Lupinus argenteus var. argenteusNative
Lupinus argenteus var. heteranthusNative
Lupinus argenteus var. meionanthusNative
Lupinus argenteus var. montigenusNative
Lupinus argenteus var. palmeriNative
Lupinus argenteus var. rubricaulis
(Under Lupinus argenteus)
Mentioned in
a note
Lupinus argenteus var. tenellus
(Under Lupinus argenteus var. argenteus)
Synonym
Lupinus arizonicusARIZONA LUPINENative
Lupinus arizonicus subsp. arizonicus
(Under Lupinus arizonicus)
Synonym
Lupinus arizonicus subsp. setosissimus
(Under Lupinus arizonicus)
Synonym
Lupinus arizonicus subsp. sonorensis
(Under Lupinus arizonicus)
Synonym
Lupinus arizonicus var. arizonicus
(Under Lupinus arizonicus)
Synonym
Lupinus arizonicus var. barbatulus
(Under Lupinus arizonicus)
Mentioned in
a note
Lupinus benthamiiSPIDER LUPINENative
Lupinus benthamii var. benthamii
(Under Lupinus benthamii)
Synonym
Lupinus benthamii var. opimus
(Under Lupinus benthamii)
Synonym
Lupinus bicolorMINIATURE LUPINENative
Lupinus bicolor subsp. marginatus
(Under Lupinus bicolor)
Synonym
Lupinus bicolor subsp. microphyllus
(Under Lupinus bicolor)
Synonym
Lupinus bicolor subsp. pipersmithii
(Under Lupinus bicolor)
Synonym
Lupinus bicolor subsp. tridentatus
(Under Lupinus bicolor)
Synonym
Lupinus bicolor subsp. umbellatus
(Under Lupinus bicolor)
Synonym
Lupinus bicolor var. rostratus
(Under Lupinus bicolor)
Synonym
Lupinus bicolor var. trifidus
(Under Lupinus bicolor)
Synonym
Lupinus brevicaulisSAND LUPINENative
Lupinus breweriNative
Lupinus breweri var. breweriNative
Lupinus breweri var. bryoidesNative
Lupinus breweri var. grandiflorusNative
Lupinus caespitosus
(Under Lupinus lepidus var. utahensis)
Synonym
Lupinus caudatus
(Under Lupinus argenteus var. heteranthus)
Synonym
Lupinus cervinusSANTA LUCIA LUPINENative
Lupinus chamissonisNative
Lupinus citrinusNative
Lupinus citrinus var. citrinusORANGE LUPINENative
Lupinus citrinus var. deflexusMARIPOSA LUPINENative
Lupinus concinnusBAJADA LUPINENative
Lupinus concinnus var. agardhianus
(Under Lupinus concinnus)
Synonym
Lupinus concinnus var. brevior
(Under Lupinus arizonicus)
Synonym
Lupinus concinnus var. concinnus
(Under Lupinus concinnus)
Synonym
Lupinus concinnus var. desertorum
(Under Lupinus concinnus)
Synonym
Lupinus concinnus var. optatus
(Under Lupinus concinnus)
Synonym
Lupinus concinnus var. orcuttii
(Under Lupinus concinnus)
Synonym
Lupinus concinnus var. pallidus
(Under Lupinus concinnus)
Synonym
Lupinus confertus
(Under Lupinus lepidus var. confertus)
Synonym
Lupinus congdonii
(Under Lupinus bicolor)
Synonym
Lupinus constanceiTHE LASSICS LUPINENative
Lupinus covilleiNative
Lupinus croceusNative
Lupinus croceus var. pilosellus
(Under Lupinus croceus)
Mentioned in
a note
Lupinus culbertsonii
(Under Lupinus lepidus var. culbertsonii)
Synonym
Lupinus dalesiaeQUINCY LUPINENative
Lupinus dedeckerae
(Under Lupinus padre-crowleyi)
Synonym
Lupinus deflexus
(Under Lupinus citrinus var. deflexus)
Synonym
Lupinus densiflorus
(Under Lupinus microcarpus var. densiflorus)
Synonym
Lupinus densiflorus var. aureus
(Under Lupinus microcarpus var. densiflorus)
Synonym
Lupinus densiflorus var. austrocollium
(Under Lupinus microcarpus var. microcarpus)
Synonym
Lupinus densiflorus var. glareosus
(Under Lupinus microcarpus var. horizontalis)
Synonym
Lupinus densiflorus var. lacteus
(Under Lupinus microcarpus var. densiflorus)
Synonym
Lupinus densiflorus var. palustris
(Under Lupinus microcarpus var. microcarpus)
Synonym
Lupinus densiflorus var. persecundus
(Under Lupinus microcarpus var. microcarpus)
Synonym
Lupinus duraniiMONO LAKE LUPINENative
Lupinus elatusSILKY LUPINENative
Lupinus elmeriSOUTH FORK MOUNTAIN LUPINENative
Lupinus excubitusGRAPE SODA LUPINENative
Lupinus excubitus var. austromontanusNative
Lupinus excubitus var. excubitusNative
Lupinus excubitus var. halliiNative
Lupinus excubitus var. johnstoniiINTERIOR BUSH LUPINENative
Lupinus excubitus var. mediusMOUNTAIN SPRINGS BUSH LUPINENative
Lupinus flavoculatusNative
Lupinus formosusNative
Lupinus formosus var. formosusNative
Lupinus formosus var. hyacinthinus
(Under Lupinus hyacinthinus)
Synonym
Lupinus formosus var. robustusNative
Lupinus fulcratusNative
Lupinus gracilentusSLENDER LUPINENative
Lupinus gracilentus var. covillei
(Under Lupinus covillei)
Synonym
Lupinus grayiNative
Lupinus guadalupensisGUADALUPE ISLAND LUPINENative
Lupinus hirsutissimusSTINGING LUPINENative
Lupinus holmgrenanus
(Under Lupinus holmgrenianus)
Synonym
Lupinus holmgrenianusHOLMGRENS' LUPINENative
Lupinus horizontalis
(Under Lupinus microcarpus var. horizontalis)
Synonym
Lupinus horizontalis var. platypetalus
(Under Lupinus microcarpus var. horizontalis)
Synonym
Lupinus hyacinthinusNative
Lupinus hypolasius
(Under Lupinus lepidus var. ramosus)
Synonym
Lupinus inyoensis
(Under Lupinus argenteus var. heteranthus)
Synonym
Lupinus inyoensis
(Under Lupinus padre-crowleyi)
Synonym
Lupinus lapidicolaHELLER'S MOUNT EDDY LUPINENative
Lupinus latifoliusNative
Lupinus latifolius var. barbatusBEARDED LUPINENative
Lupinus latifolius var. columbianusNative
Lupinus latifolius var. dudleyiNative
Lupinus latifolius var. latifoliusNative
Lupinus latifolius var. parishiiNative
Lupinus latifolius var. viridifoliusNative
Lupinus lepidusDWARF LUPINENative
Lupinus lepidus var. confertusNative
Lupinus lepidus var. culbertsoniiHOCKETT MEADOWS LUPINENative
Lupinus lepidus var. lobbiiNative
Lupinus lepidus var. ramosusNative
Lupinus lepidus var. sellulusNative
Lupinus lepidus var. utahensisSTEMLESS LUPINENative
Lupinus leucophyllusNative
Lupinus leucophyllus var. canescens
(Under Lupinus leucophyllus)
Synonym
Lupinus littoralisNative
Lupinus lobbii
(Under Lupinus lepidus var. lobbii)
Synonym
Lupinus longifoliusNative
Lupinus ludovicianusSAN LUIS OBISPO COUNTY LUPINENative
Lupinus luteolusBUTTER LUPINENative
Lupinus lyallii var. danaus
(Under Lupinus lepidus var. lobbii)
Synonym
Lupinus lyallii var. lyallii
(Under Lupinus lepidus var. lobbii)
Synonym
Lupinus magnificusNative
Lupinus magnificus var. glarecolaCOSO MOUNTAINS LUPINENative
Lupinus magnificus var. hesperius
(Under Lupinus magnificus)
Mentioned in
a note
Lupinus magnificus var. magnificusPANAMINT MOUNTAINS LUPINENative
Lupinus meionanthus
(Under Lupinus argenteus var. meionanthus)
Synonym
Lupinus microcarpusCHICK LUPINENative
Lupinus microcarpus var. densiflorusNative
Lupinus microcarpus var. horizontalisNative
Lupinus microcarpus var. microcarpusNative
Lupinus milo-bakeriMILO BAKER'S LUPINENative
Lupinus montigenus
(Under Lupinus argenteus var. montigenus)
Synonym
Lupinus nanusNative
Lupinus nanus subsp. apricus
(Under Lupinus nanus)
Synonym
Lupinus nanus subsp. latifolius
(Under Lupinus nanus)
Synonym
Lupinus nanus subsp. menkerae
(Under Lupinus nanus)
Synonym
Lupinus nanus var. maritimus
(Under Lupinus nanus)
Synonym
Lupinus nevadensisNEVADA LUPINENative
Lupinus nipomensisNIPOMO MESA LUPINENative
Lupinus obtusilobusNative
Lupinus odoratusMOJAVE LUPINENative
Lupinus odoratus var. pilosellus
(Under Lupinus odoratus)
Mentioned in
a note
Lupinus onustusNative
Lupinus pachylobusBIG POD LUPINENative
Lupinus padre-crowleyiFATHER CROWLEY'S LUPINENative
Lupinus palmeri
(Under Lupinus argenteus var. palmeri)
Synonym
Lupinus peirsoniiPEIRSON'S LUPINENative
Lupinus polycarpus
(Under Lupinus bicolor)
Synonym
Lupinus polyphyllusNative
Lupinus polyphyllus subsp. bernardinus
(Under Lupinus polyphyllus var. burkei)
Synonym
Lupinus polyphyllus subsp. superbus
(Under Lupinus polyphyllus var. burkei)
Synonym
Lupinus polyphyllus var. burkeiNative
Lupinus polyphyllus var. humicola
(Under Lupinus holmgrenianus)
Synonym
Lupinus polyphyllus var. pallidipesNative
Lupinus polyphyllus var. polyphyllusNative
Lupinus polyphyllus var. saxosus
(Under Lupinus saxosus)
Synonym
Lupinus pratensisNative
Lupinus pratensis var. eriostachyusNative
Lupinus pratensis var. pratensisNative
Lupinus propinquus
(Under Lupinus arboreus)
Mentioned in
a note
Lupinus pusillus var. intermontanusINTERMONTANE LUPINENative
Lupinus rivularisNative
Lupinus rivularis
(Under Lupinus latifolius)
Synonym
Lupinus rostratus
(Under Lupinus bicolor)
Synonym
Lupinus ruber
(Under Lupinus microcarpus var. microcarpus)
Synonym
Lupinus saxosusNative
Lupinus sellulus subsp. ursinus
(Under Lupinus lepidus var. sellulus)
Synonym
Lupinus sellulus var. artulus
(Under Lupinus lepidus var. sellulus)
Synonym
Lupinus sellulus var. sellulus
(Under Lupinus lepidus var. sellulus)
Synonym
Lupinus sericatusCOBB MOUNTAIN LUPINENative
Lupinus shockleyiDESERT LUPINENative
Lupinus silvicola
(Under Lupinus arbustus)
Synonym
Lupinus sonomensis
(Under Lupinus formosus var. robustus)
Synonym
Lupinus sparsiflorusCOULTER'S LUPINENative
Lupinus sparsiflorus subsp. inopinatus
(Under Lupinus sparsiflorus)
Mentioned in
a note
Lupinus sparsiflorus subsp. mohavensis
(Under Lupinus sparsiflorus)
Mentioned in
a note
Lupinus sparsiflorus var. brevior
(Under Lupinus arizonicus)
Synonym
Lupinus spectabilisSHAGGYHAIR LUPINENative
Lupinus stiversiiHARLEQUIN LUPINENative
Lupinus sublanatus
(Under Lupinus argenteus var. argenteus)
Synonym
Lupinus subvexus
(Under Lupinus microcarpus var. microcarpus)
Synonym
Lupinus subvexus var. insularis
(Under Lupinus microcarpus var. microcarpus)
Synonym
Lupinus subvexus var. phoeniceus
(Under Lupinus microcarpus var. microcarpus)
Synonym
Lupinus subvexus var. subvexus
(Under Lupinus microcarpus var. microcarpus)
Synonym
Lupinus subvexus var. transmontanus
(Under Lupinus microcarpus var. microcarpus)
Synonym
Lupinus succulentusARROYO LUPINENative
Lupinus sylvestris
(Under Lupinus albicaulis)
Synonym
Lupinus tegeticulatus
(Under Lupinus breweri var. bryoides)
Synonym
Lupinus tegeticulatus var. duranii
(Under Lupinus duranii)
Synonym
Lupinus tidestromiiTIDESTROM'S LUPINENative
Lupinus tidestromii var. layneae
(Under Lupinus tidestromii)
Mentioned in
a note
Lupinus tracyiTRACY'S LUPINENative
Lupinus truncatusNative
Lupinus uncialisLILLIPUT LUPINENative
Lupinus vallicola
(Under Lupinus nanus)
Synonym
Lupinus variicolorNative
Lupinus violaceus
(Under Lupinus onustus)
Synonym
Lupinus viridifolius
(Under Lupinus latifolius var. viridifolius)
Synonym
Luzula
  ↳  Key to Luzula
HAIRY WOOD RUSH
Luzula campestris var. comosa
(Under Luzula comosa)
Synonym
Luzula comosaNative
Luzula comosa var. comosaNative
Luzula comosa var. congesta
(Under Luzula comosa var. comosa)
Synonym
Luzula comosa var. laxaNative
Luzula comosa var. macrantha
(Under Luzula subsessilis)
Synonym
Luzula comosa var. subsessilis
(Under Luzula subsessilis)
Synonym
Luzula divaricataNative
Luzula divaricata
(Under Luzula parviflora subsp. fastigiata)
Synonym
Luzula oresteraNative
Luzula parvifloraNative
Luzula parviflora subsp. fastigiataNative
Luzula parviflora subsp. parvifloraNative
Luzula piperiNative
Luzula spadicea var. subcongesta
(Under Luzula subcongesta)
Synonym
Luzula spicataNative
Luzula spicata subsp. saximontana
(Under Luzula spicata)
Synonym
Luzula spicata var. nova
(Under Luzula spicata)
Synonym
Luzula subcongestaNative
Luzula subsessilisNative
Luzula wahlenbergii subsp. piperi
(Under Luzula piperi)
Synonym
LychnisCAMPION
Lychnis alba
(Under Silene latifolia)
Synonym
Lychnis coronariaROSE CAMPIONNaturalized
Lycium
  ↳  Key to Lycium
BOX-THORN, WOLFBERRY
Lycium andersoniiNative
Lycium andersonii var. deserticola
(Under Lycium andersonii)
Synonym
Lycium barbarumMATRIMONY VINENaturalized
Lycium brevipesNative
Lycium brevipes var. brevipesNative
Lycium brevipes var. hasseiSANTA CATALINA ISLAND DESERT-THORNNative
Lycium californicumCALIFORNIA BOX-THORNNative
Lycium chinense
(Under Lycium barbarum)
Mentioned in
a note
Lycium cooperiNative
Lycium fremontiiNative
Lycium halimifolium
(Under Lycium barbarum)
Synonym
Lycium hassei
(Under Lycium brevipes var. hassei)
Synonym
Lycium pallidum var. oligospermumNative
Lycium pallidum var. pallidum
(Under Lycium pallidum var. oligospermum)
Mentioned in
a note
Lycium parishiiPARISH'S DESERT-THORNNative
Lycium torreyiNative
Lycium verrucosumSAN NICOLAS ISLAND DESERT-THORNNative
Lycopersicon
  ↳  Key to Lycopersicon
Lycopersicon esculentumTOMATONaturalized
Lycopersicon peruvianumNaturalized
Lycopodiaceae
  ↳  Key to Lycopodiaceae
CLUB-MOSS FAMILY
LycopodiellaBOG CLUB-MOSS
Lycopodiella inundataINUNDATED BOG CLUB-MOSSNative
LycopodiumRUNNING-PINE, CLUB-MOSS
Lycopodium clavatumRUNNING-PINENative
Lycopodium inundatum
(Under Lycopodiella inundata)
Synonym
Lycopus
  ↳  Key to Lycopus
BUGLEWEED
Lycopus americanusNative
Lycopus asperNative
Lycopus lucidus
(Under Lycopus asper)
Synonym
Lycopus uniflorusNORTHERN BUGLEWEEDNative
Lycurus phleoides
(Under Muhlenbergia alopecuroides)
Synonym
Lycurus setosus
(Under Muhlenbergia alopecuroides)
Synonym
Lygodesmia exigua
(Under Prenanthella exigua)
Synonym
LyonothamnusCATALINA IRONWOOD
Lyonothamnus floribundus
  ↳  Key to Lyonothamnus floribundus
Native
Lyonothamnus floribundus subsp. aspleniifoliusSANTA CRUZ ISLAND IRONWOODNative
Lyonothamnus floribundus subsp. floribundusSANTA CATALINA ISLAND IRONWOODNative
Lyonothamnus floribundus var. aspleniifolius
(Under Lyonothamnus floribundus subsp. aspleniifolius)
Synonym
Lyrocarpa
Lyrocarpa coulteriCOULTER'S LYREPODNative
Lyrocarpa coulteri var. coulteri
(Under Lyrocarpa coulteri)
Synonym
Lyrocarpa coulteri var. palmeri
(Under Lyrocarpa coulteri)
Synonym
Lysichiton
Lysichiton americanum
(Under Lysichiton americanus)
Synonym
Lysichiton americanusYELLOW SKUNK-CABBAGENative
Lysimachia
  ↳  Key to Lysimachia
LOOSESTRIFE
Lysimachia arvensisSCARLET PIMPERNELNaturalized
Lysimachia europaeaARCTIC STARFLOWERNative
Lysimachia latifoliaPACIFIC STARFLOWERNative
Lysimachia maritimaSEA MILKWORTNative
Lysimachia minimaCHAFFWEEDNative
Lysimachia monelliFLAXLEAF PIMPERNELWaif
Lysimachia nummulariaCREEPING-JENNYNaturalized
Lysimachia thyrsifloraTUFTED LOOSESTRIFENative
Lythraceae
  ↳  Key to Lythraceae
LOOSESTRIFE FAMILY
Lythrum
  ↳  Key to Lythrum
LOOSESTRIFE
Lythrum alatum var. linearifolium
(Under Lythrum californicum)
Synonym
Lythrum californicumCALIFORNIA LOOSESTRIFENative
Lythrum hyssopifoliaNaturalized
Lythrum portulaNaturalized
Lythrum salicariaPURPLE LOOSESTRIFENaturalized
Lythrum sanfordii
(Under Lythrum californicum)
Synonym
Lythrum tribracteatumNaturalized