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Key to families Table of families and genera
  Index to accepted names and synonyms:
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Scientific Name

Index Page: J

Scientific NameCommon Name
JacarandaJACARANDA
Jacaranda mimosifoliaBLUE JACARANDAUrban weed
Jacobaea vulgaris
(Under Senecio jacobaea)
Synonym
JamesiaCLIFFBUSH
Jamesia americana subsp. californica
(Under Jamesia americana var. rosea)
Synonym
Jamesia americana var. californica
(Under Jamesia americana var. rosea)
Synonym
Jamesia americana var. roseaROSY-PETALLED CLIFFBUSHNative
Jamesia californica
(Under Jamesia americana var. rosea)
Synonym
Jarava plumosa
(Under Stipa)
Mentioned in
a note
Jarava speciosa
(Under Stipa speciosa)
Synonym
Jaumea
Jaumea carnosaNative
Jensia
  ↳  Key to Jensia
TARWEED, TARPLANT
Jensia rammiiNative
Jensia yosemitanaYOSEMITE TARPLANTNative
Jepsonia
  ↳  Key to Jepsonia
Jepsonia heterandraFOOTHILL JEPSONIANative
Jepsonia malvifoliaISLAND JEPSONIANative
Jepsonia parryiNative
Jepsonia parryi var. heterandra
(Under Jepsonia heterandra)
Synonym
Johanneshowellia
Johanneshowellia puberulaDOWNY BUCKWHEATNative
Johnstonella inaequata
(Under Cryptantha inaequata)
Synonym
Johnstonella micromeres
(Under Cryptantha micromeres)
Synonym
Johnstonella racemosa
(Under Cryptantha racemosa)
Synonym
Juglandaceae
  ↳  Key to Juglandaceae
WALNUT FAMILY
Juglans
  ↳  Key to Juglans
WALNUT
Juglans californicaSOUTHERN CALIFORNIA BLACK WALNUTNative
Juglans californica var. californica
(Under Juglans californica)
Synonym
Juglans californica var. hindsii
(Under Juglans hindsii)
Synonym
Juglans hindsiiNORTHERN CALIFORNIA BLACK WALNUTNative
Juglans nigra
(Under Juglans)
Mentioned in
a note
Juglans regiaPERSIAN or ENGLISH WALNUTWaif
Juncaceae
  ↳  Key to Juncaceae
RUSH FAMILY
JuncaginaceaeARROW-GRASS FAMILY
Juncus
  ↳  Key to Juncus
RUSH
Juncus acuminatusTAPERED RUSHNative
Juncus acutus subsp. leopoldiiSOUTHWESTERN SPINY RUSHNative
Juncus acutus var. sphaerocarpus
(Under Juncus acutus subsp. leopoldii)
Synonym
Juncus ambiguusFROG RUSHNaturalized
Juncus amuricus
(Under Juncus bufonius var. occidentalis)
Mentioned in
a note
Juncus anthelatusKENTUCKY or POVERTY RUSHWaif
Juncus arcticus var. balticus
(Under Juncus balticus subsp. ater)
Synonym
Juncus arcticus var. mexicanus
(Under Juncus mexicanus)
Synonym
Juncus articulatus subsp. articulatusJOINTED RUSHNative
Juncus balticus subsp. aterBALTIC RUSHNative
Juncus balticus var. montanus
(Under Juncus balticus subsp. ater)
Synonym
Juncus bolanderiBOLANDER'S RUSHNative
Juncus brachyphyllus
(Under Juncus)
Mentioned in
a note
Juncus brachyphyllus
(Under Juncus trilocularis)
Mentioned in
a note
Juncus breweriSALT or BREWER'S RUSHNative
Juncus bryoidesMOSS RUSHNative
Juncus bufoniusTOAD RUSHNative
Juncus bufonius var. bufoniusNative
Juncus bufonius var. congdonii
(Under Juncus bufonius var. bufonius)
Synonym
Juncus bufonius var. congestusCLUSTERED TOAD RUSHNaturalized
Juncus bufonius var. halophilus
(Under Juncus ambiguus)
Synonym
Juncus bufonius var. occidentalisWESTERN TOAD RUSHNative
Juncus bulbosusBULBOUS RUSHNaturalized
Juncus capillarisHAIRSTEMMED RUSHNative
Juncus capitatusDWARF RUSHNaturalized
Juncus chlorocephalusGREENHEADED RUSHNative
Juncus confususCOLORADO RUSHNative
Juncus cooperiCOOPER'S RUSHNative
Juncus covilleiCOVILLE'S RUSHNative
Juncus covillei var. covillei
(Under Juncus covillei)
Synonym
Juncus covillei var. obtusatus
(Under Juncus covillei)
Synonym
Juncus cyperoidesBOLIVIAN RUSHNaturalized
Juncus dichotomusDICHOTOMOUS RUSHNaturalized
Juncus diffusissimusSLIM-POD RUSHNaturalized
Juncus digitatusFINGER RUSHNative
Juncus drummondiiDRUMMOND'S RUSHNative
Juncus drummondii var. subtriflorus
(Under Juncus drummondii)
Synonym
Juncus dubiusMARIPOSA RUSHNative
Juncus dudleyiDUDLEY'S RUSHNative
Juncus duraniiDURAN'S RUSHNative
Juncus effususSOFT or LAMP RUSHNative
Juncus effusus subsp. austrocalifornicusSONORAN or BAJA RUSHNative
Juncus effusus subsp. austrocalifornicus
(Under Juncus effusus subsp. austrocalifornicus)
Synonym
Juncus effusus subsp. effususCOMMON RUSHNaturalized
Juncus effusus subsp. pacificusPACIFIC RUSHNative
Juncus effusus subsp. solutusEASTERN SOFT RUSHNaturalized
Juncus effusus var. australis
(Under Juncus effusus subsp. austrocalifornicus)
Synonym
Juncus effusus var. brunneus
(Under Juncus hesperius)
Synonym
Juncus effusus var. compactus
(Under Juncus effusus subsp. effusus)
Synonym
Juncus effusus var. exiguus
(Under Juncus exiguus)
Synonym
Juncus effusus var. gracilis
(Under Juncus laccatus)
Synonym
Juncus effusus var. pacificus
(Under Juncus effusus subsp. pacificus)
Synonym
Juncus effusus var. solutus
(Under Juncus effusus subsp. solutus)
Synonym
Juncus elliottiiELLIOTT'S RUSHNaturalized
Juncus ensifoliusDAGGER RUSH, SWORDLEAVED RUSHNative
Juncus ensifolius var. montanus
(Under Juncus saximontanus)
Synonym
Juncus exiguusKLAMATH or WEAK RUSHNative
Juncus falcatusNative
Juncus falcatus subsp. falcatusSICKLELEAVED RUSHNative
Juncus falcatus subsp. sitchensisALASKAN SICKLELEAVED RUSHNative
Juncus falcatus var. falcatus
(Under Juncus falcatus subsp. falcatus)
Synonym
Juncus falcatus var. sitchensis
(Under Juncus falcatus subsp. sitchensis)
Synonym
Juncus gerardi subsp. gerardiMUD RUSHNaturalized
Juncus hemiendytusNative
Juncus hemiendytus var. abjectusCENTER BASIN RUSHNative
Juncus hemiendytus var. hemiendytusHERMANN'S DWARF RUSHNative
Juncus hesperiusCOAST or BOG RUSHNative
Juncus howelliiHOWELL'S RUSHNative
Juncus hybridus
(Under Juncus bufonius)
Mentioned in
a note
Juncus interiorINLAND RUSHNative
Juncus interior var. arizonicus
(Under Juncus interior)
Synonym
Juncus interior var. neomexicanus
(Under Juncus interior)
Synonym
Juncus kelloggiiKELLOGG'S DWARF RUSHNative
Juncus laccatusSHINY RUSHNative
Juncus leiospermusNative
Juncus leiospermus var. ahartiiAHART'S DWARF RUSHNative
Juncus leiospermus var. leiospermusRED BLUFF DWARF RUSHNative
Juncus lescuriiSAN FRANCISCO RUSHNative
Juncus lescurii var. tracyi
(Under Juncus breweri)
Synonym
Juncus lesueurii
(Under Juncus lescurii)
Synonym
Juncus longistylisLONG-STYLED RUSHNative
Juncus luciensisSANTA LUCIA DWARF RUSHNative
Juncus macrandrusLONG-ANTHERED RUSHNative
Juncus macrophyllusLONG-LEAVED RUSHNative
Juncus marginatusGRASSLEAVED or RED-ANTHERED RUSHNaturalized
Juncus marginatus var. marginatus
(Under Juncus marginatus)
Synonym
Juncus megaspermus
(Under Juncus triformis)
Synonym
Juncus mertensianusMERTENS' RUSHNative
Juncus mertensianus subsp. gracilis
(Under Juncus nevadensis var. nevadensis)
Synonym
Juncus mertensianus var. duranii
(Under Juncus duranii)
Synonym
Juncus mexicanusMEXICAN RUSHNative
Juncus nevadensisNative
Juncus nevadensis var. inventusDUNE RUSHNative
Juncus nevadensis var. nevadensisNEVADA or SIERRAN RUSHNative
Juncus nodosusKNOTTED RUSHNative
Juncus nodosus var. nodosus
(Under Juncus nodosus)
Synonym
Juncus occidentalisWESTERN RUSHNative
Juncus oreganus
(Under Juncus supiniformis)
Synonym
Juncus orthophyllusSTRAIGHTLEAVED RUSHNative
Juncus oxymerisPOINTED RUSHNative
Juncus parryiPARRY'S RUSHNative
Juncus patensSPREADING RUSHNative
Juncus phaeocephalusNative
Juncus phaeocephalus var. gracilis
(Under Juncus nevadensis var. nevadensis)
Synonym
Juncus phaeocephalus var. paniculatusPANICLED RUSHNative
Juncus phaeocephalus var. phaeocephalusBROWNHEADED RUSHNative
Juncus planifoliusNEW ZEALAND or FLAT-LEAVED RUSHNaturalized
Juncus ranarius
(Under Juncus ambiguus)
Synonym
Juncus ranarius
(Under Juncus bufonius)
Mentioned in
a note
Juncus regeliiREGEL'S RUSHNative
Juncus rugulosusWRINKLED RUSHNative
Juncus saximontanusROCKY MOUNTAIN RUSHNative
Juncus saximontanus f. brunnescens
(Under Juncus saximontanus)
Synonym
Juncus sphaerocarpus
(Under Juncus bufonius var. occidentalis)
Mentioned in
a note
Juncus supiniformisHAIR-LEAVED RUSHNative
Juncus tenuisPOVERTY or SLENDER RUSHNative
Juncus tenuis var. congestus
(Under Juncus occidentalis)
Synonym
Juncus tenuis var. dudleyi
(Under Juncus dudleyi)
Synonym
Juncus tenuis var. occidentalis
(Under Juncus occidentalis)
Synonym
Juncus textilisMAT or BASKET RUSHNative
Juncus tiehmiiTIEHM'S RUSHNative
Juncus torreyiTORREY'S RUSHNative
Juncus triformisYOSEMITE DWARF RUSHNative
Juncus trilocularisFOOTHILL RUSHNative
Juncus uncialisINCH-HIGH RUSHNative
Juncus usitatusAUSTRALIAN RUSHNaturalized
Juncus xiphioidesIRIS-LEAVED RUSHNative
Juniperus
  ↳  Key to Juniperus
JUNIPER
Juniperus californicaCALIFORNIA JUNIPERNative
Juniperus communisCOMMON JUNIPERNative
Juniperus communis var. depressaDEPRESSED JUNIPERNative
Juniperus communis var. depressa
(Under Juniperus communis var. saxatilis)
Synonym
Juniperus communis var. jackiiJACK'S JUNIPERNative
Juniperus communis var. jackii
(Under Juniperus communis var. saxatilis)
Synonym
Juniperus communis var. montana
(Under Juniperus communis var. jackii)
Synonym
Juniperus communis var. montana
(Under Juniperus communis var. saxatilis)
Synonym
Juniperus communis var. saxatilisMOUNTAIN JUNIPERNative
Juniperus grandisSIERRA JUNIPER, GRAND JUNIPERNative
Juniperus occidentalisWESTERN JUNIPERNative
Juniperus occidentalis var. australis
(Under Juniperus grandis)
Synonym
Juniperus occidentalis var. occidentalis
(Under Juniperus occidentalis)
Synonym
Juniperus osteospermaUTAH JUNIPERNative
Jussiaea californica
(Under Ludwigia peploides subsp. peploides)
Synonym
Jussiaea repens var. californica
(Under Ludwigia peploides subsp. peploides)
Synonym
Jussiaea repens var. montevidensis
(Under Ludwigia peploides subsp. montevidensis)
Synonym
Jussiaea repens var. peploides
(Under Ludwigia peploides subsp. peploides)
Synonym
Jussiaea uruguayensis
(Under Ludwigia grandiflora)
Synonym
Jussiaea uruguayensis
(Under Ludwigia hexapetala)
Synonym
Justicia
Justicia californicaBELOPERONE, CHUPAROSANative