California

• Alameda 06001
  1,856 taxa Open ↗
• Alpine 06003
  1,174 taxa Open ↗
• Amador 06005
  1,226 taxa Open ↗
• Butte 06007
  2,704 taxa Open ↗
• Calaveras 06009
  1,227 taxa Open ↗
• Colusa 06011
  1,330 taxa Open ↗
• Contra Costa 06013
  1,712 taxa Open ↗
• Del Norte 06015
  1,424 taxa Open ↗
• El Dorado 06017
  1,950 taxa Open ↗
• Fresno 06019
  2,373 taxa Open ↗

Showing 1,101–1,150 of 1,412 (introduced).

• 
  Rubia tinctorum L. Introduced RUTI2

  dyer's madder · Rubiaceae 1 county
• 
  Rubus armeniacus Focke Introduced RUAR9

  Himalayan blackberry · Rosaceae 37 counties
• 
  Rubus bifrons × laciniatus [unnamed hybrid] Introduced RUBI6

  hybrid European blackberry · Rosaceae 4 counties
• 
  Rubus bifrons × ursinus [unnamed hybrid] Introduced RUBI7

  hybrid blackberry · Rosaceae 1 county
• 
  Rubus laciniatus Willd. Introduced RULA

  cutleaf blackberry · Rosaceae 15 counties
• 
  Rubus pensilvanicus × ursinus [unnamed hybrid] Introduced RUPE5

  hybrid blackberry · Rosaceae 2 counties
• 
  Rubus ulmifolius Schott Introduced RUUL

  elmleaf blackberry · Rosaceae 9 counties
• 
  Rubus ulmifolius Schott var. anoplothyrsus Sudre Introduced RUULA

  unarmed elmleaf blackberry · Rosaceae 6 counties
• 
  Rubus ulmifolius Schott var. ulmifolius Introduced RUULU2

  elmleaf blackberry · Rosaceae 3 counties
• 
  Rumex acetosella L. Introduced RUAC3

  common sheep sorrel · Polygonaceae 44 counties
• 
  Rumex conglomeratus Murray Introduced RUCO2

  clustered dock · Polygonaceae 38 counties
• 
  Rumex crispus L. Introduced RUCR

  curly dock · Polygonaceae 51 counties
• 
  Rumex crispus L. ssp. crispus Introduced RUCRC

  curly dock · Polygonaceae 51 counties
• 
  Rumex dentatus L. Introduced RUDE3

  toothed dock · Polygonaceae 4 counties
• 
  Rumex frutescens Thouars Introduced RUFR7

  wedgeleaf dock · Polygonaceae 2 counties
• 
  Rumex kerneri Borbás Introduced RUKE

  Kerner's dock · Polygonaceae 3 counties
• 
  Rumex obtusifolius L. Introduced RUOB

  bitter dock · Polygonaceae 17 counties
• 
  Rumex palustris Sm. Introduced RUPA12

  marsh dock · Polygonaceae 1 county
• 
  Rumex pulcher L. Introduced RUPU3

  fiddle dock · Polygonaceae 28 counties
• 
  Rumex stenophyllus Ledeb. Introduced RUST4

  narrowleaf dock · Polygonaceae 4 counties
• 
  Ruta chalepensis L. Introduced RUCH4

  fringed rue · Rutaceae 6 counties
• 
  Ruta graveolens L. Introduced RUGR3

  common rue · Rutaceae 4 counties
• 
  Rytidosperma biannulare (Zotov) Connor & Edgar Introduced RYBI

  wallaby grass · Poaceae 1 county
• 
  Rytidosperma caespitosum (Gaudich.) Connor & Edgar Introduced RYCA

  tufted wallaby grass · Poaceae 3 counties
• 
  Rytidosperma pilosum (R. Br.) Connor & Edgar Introduced RYPI

  hairy wallaby grass · Poaceae 9 counties
• 
  Rytidosperma racemosum (R. Br.) Connor & Edgar Introduced RYRA

  wallaby grass · Poaceae 3 counties
• 
  Saccharum ravennae (L.) L. Introduced SARA3

  ravennagrass · Poaceae 1 county
• 
  Sagina apetala Ard. Introduced SAAP

  annual pearlwort · Caryophyllaceae 30 counties
• 
  Sagina procumbens L. Introduced SAPR

  birdeye pearlwort · Caryophyllaceae 8 counties
• 
  Salix alba L. Introduced SAAL2

  white willow · Salicaceae 56 counties
• ⚘
  Salix ×pendulina Wender. [babylonica × euxina] Introduced SAPE12

  Wisconsin weeping willow · Salicaceae 1 county
• ⚘
  Salix ×sepulcralis Simonkai [alba × babylonica] Introduced SASE10

  weeping willow · Salicaceae 3 counties
• 
  Salpichroa origanifolia (Lam.) Thell. Introduced SAOR4

  lily of the valley vine · Solanaceae 16 counties
• 
  Salsola kali L. Introduced SAKA

  Russian thistle · Chenopodiaceae 4 counties
• 
  Salsola kali L. ssp. pontica (Pall.) Mosyakin Introduced SAKAP

  Russian thistle · Chenopodiaceae 3 counties
• 
  Salsola paulsenii Litv. Introduced SAPA8

  barbwire Russian thistle · Chenopodiaceae 8 counties
• 
  Salsola soda L. Introduced SASO3

  oppositeleaf Russian thistle · Chenopodiaceae 4 counties
• 
  Salsola tragus L. Introduced SATR12

  prickly Russian thistle · Chenopodiaceae 35 counties
• 
  Salsola vermiculata L. Introduced SAVE6

  shrubby Russian thistle · Chenopodiaceae 2 counties
• 
  Salvia aethiopis L. Introduced SAAE

  Mediterranean sage · Lamiaceae 5 counties
• 
  Salvia longistyla Benth. Introduced SALO6

  Mexican sage · Lamiaceae 1 county
• 
  Salvia microphylla Benth. Introduced SAMI20

  baby sage · Lamiaceae 8 counties
• 
  Salvia officinalis L. Introduced SAOF2

  kitchen sage · Lamiaceae 1 county
• 
  Salvia sclarea L. Introduced SASC2

  Europe sage · Lamiaceae 1 county
• 
  Salvia verbenaca L. Introduced SAVE12

  wild clary · Lamiaceae 2 counties
• 
  Salvia virgata Jacq. Introduced SAVI18

  wand sage · Lamiaceae 3 counties
• 
  Salvinia molesta Mitchell Introduced SAMO5

  kariba-weed · Salviniaceae 6 counties
• 
  Salvinia oblongifolia Mart. Introduced SAOB5

  oblong salvinia · Salviniaceae 1 county
• 
  Sanguisorba minor Scop. Introduced SAMI3

  small burnet · Rosaceae 26 counties
• 
  Sanguisorba minor Scop. ssp. balearica (Bourg. ex Nyman) M. Garm. & C. Navarro Introduced SAMIB2

  small burnet · Rosaceae 26 counties