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 851–900 of 1,412 (introduced).

• 
  Moraea polystachya (Thunb.) Ker Gawl. Introduced MOPO2

  blue-tulip · Iridaceae 1 county
• 
  Morus alba L. Introduced MOAL

  white mulberry · Moraceae 12 counties
• 
  Muehlenbeckia complexa Meisn. Introduced MUCO3

  maidenhair vine · Polygonaceae 3 counties
• ⚘
  Muehlenbeckia hastatula (Sm.) I.M. Johnst. Introduced MUHA

  wirevine · Polygonaceae 1 county
• 
  Muntingia calabura L. Introduced MUCA4

  strawberrytree · Elaeocarpaceae 1 county
• 
  Muscari botryoides (L.) Mill. Introduced MUBO

  common grape hyacinth · Liliaceae 4 counties
• 
  Myoporum laetum G. Forst. Introduced MYLA5

  ngaio tree · Myoporaceae 9 counties
• 
  Myosotis discolor Pers. Introduced MYDI

  changing forget-me-not · Boraginaceae 15 counties
• 
  Myosotis latifolia Poir. Introduced MYLA4

  broadleaf forget-me-not · Boraginaceae 12 counties
• 
  Myosotis scorpioides L. Introduced MYSC

  true forget-me-not · Boraginaceae 5 counties
• 
  Myosotis stricta Link ex Roem. & Schult. Introduced MYST2

  strict forget-me-not · Boraginaceae 5 counties
• 
  Myosotis sylvatica Ehrh. Introduced MYSY

  woodland forget-me-not · Boraginaceae 3 counties
• 
  Myriophyllum aquaticum (Vell.) Verdc. Introduced MYAQ2

  parrot feather watermilfoil · Haloragaceae 14 counties
• 
  Myriophyllum spicatum L. Introduced MYSP2

  Eurasian watermilfoil · Haloragaceae 10 counties
• 
  Najas graminea Delile Introduced NAGR2

  ricefield waternymph · Najadaceae 2 counties
• 
  Najas minor All. Introduced NAMI

  brittle waternymph · Najadaceae 1 county
• 
  Narcissus papyraceus Ker Gawl. Introduced NAPA3

  paperwhite narcissus · Liliaceae 1 county
• 
  Narcissus pseudonarcissus L. Introduced NAPS

  daffodil · Liliaceae 3 counties
• 
  Narcissus tazetta L. Introduced NATA2

  cream narcissus · Liliaceae 2 counties
• 
  Nassella manicata (Desv.) Barkworth Introduced NAMA7

  tropical needlegrass · Poaceae 3 counties
• 
  Nasturtium officinale W.T. Aiton Introduced NAOF

  watercress · Brassicaceae 48 counties
• 
  Nepeta cataria L. Introduced NECA2

  catnip · Lamiaceae 8 counties
• 
  Nerium oleander L. Introduced NEOL

  oleander · Apocynaceae 5 counties
• 
  Nicandra physalodes (L.) Scop. Introduced NIPH

  apple of Peru · Solanaceae 2 counties
• 
  Nicotiana acuminata (Graham) Hook. Introduced NIAC

  manyflower tobacco · Solanaceae 28 counties
• 
  Nicotiana acuminata (Graham) Hook. var. multiflora (Phil.) Reiche Introduced NIACM

  manyflower tobacco · Solanaceae 28 counties
• 
  Nicotiana alata Link & Otto Introduced NIAL

  jasmine tobacco · Solanaceae 1 county
• 
  Nicotiana glauca Graham Introduced NIGL

  tree tobacco · Solanaceae 32 counties
• 
  Nicotiana sylvestris Speg. & Comes Introduced NISY

  South American tobacco · Solanaceae 4 counties
• 
  Nicotiana tabacum L. Introduced NITA

  cultivated tobacco · Solanaceae 3 counties
• ⚘
  Nicotiana ×sanderae hort. ex W. Watson (pro sp.) [alata × forgetiana] Introduced NISA

  tobacco · Solanaceae 1 county
• 
  Nigella damascena L. Introduced NIDA

  devil in the bush · Ranunculaceae 2 counties
• 
  Nothoscordum gracile (Aiton) Stearn Introduced NOGR3

  slender false garlic · Liliaceae 10 counties
• 
  Nymphoides peltata (S.G. Gmel.) Kuntze Introduced NYPE

  yellow floatingheart · Menyanthaceae 1 county
• 
  Oenanthe pimpinelloides L. Introduced OEPI

  corkyfruit waterdropwort · Apiaceae 1 county
• 
  Oenothera glazioviana Micheli Introduced OEGL

  redsepal evening primrose · Onagraceae 9 counties
• 
  Oenothera stricta Ledeb. ex Link Introduced OEST

  Chilean evening primrose · Onagraceae 1 county
• 
  Olea europaea L. Introduced OLEU

  olive · Oleaceae 17 counties
• 
  Olea europaea L. ssp. cuspidata (Wall. ex G. Don) Ciferri Introduced OLEUC

  African olive · Oleaceae 1 county
• 
  Olea europaea L. ssp. europaea Introduced OLEUE

  European olive · Oleaceae 16 counties
• 
  Oncosiphon piluliferum (L. f.) Källersjö Introduced ONPI

  stinknet · Asteraceae 3 counties
• 
  Onobrychis viciifolia Scop. Introduced ONVI

  sainfoin · Fabaceae 3 counties
• 
  Ononis alopecuroides L. Introduced ONAL5

  foxtail restharrow · Fabaceae 1 county
• 
  Onopordum acanthium L. Introduced ONAC

  Scotch cottonthistle · Asteraceae 35 counties
• 
  Onopordum illyricum L. Introduced ONIL

  Illyrian cottonthistle · Asteraceae 1 county
• 
  Onopordum tauricum Willd. Introduced ONTA

  bull cottonthistle · Asteraceae 5 counties
• 
  Opuntia ficus-indica (L.) Mill. Introduced OPFI

  Barbary fig · Cactaceae 8 counties
• 
  Origanum vulgare L. Introduced ORVU

  oregano · Lamiaceae 1 county
• 
  Ornithogalum umbellatum L. Introduced ORUM

  star of Bethlehem · Liliaceae 2 counties
• 
  Ornithopus pinnatus (Mill.) Druce Introduced ORPI3

  yellow bird's-foot · Fabaceae 1 county