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 601–650 of 1,412 (introduced).

• 
  Geranium pyrenaicum Burm. f. Introduced GEPY

  hedgerow geranium · Geraniaceae 1 county
• 
  Geranium retrorsum L'Hér. ex DC. Introduced GERE

  New Zealand geranium · Geraniaceae 16 counties
• 
  Geranium robertianum L. ssp. purpureum (Vill.) Nyman Introduced GEROP

  Robert geranium · Geraniaceae 2 counties
• 
  Geranium rotundifolium L. Introduced GERO3

  roundleaf geranium · Geraniaceae 5 counties
• 
  Geranium yeoi Aedo & Muñoz Garm. Introduced GEYE

  greater herb robert · Geraniaceae 1 county
• 
  Gladiolus italicus Mill. Introduced GLIT

  Italian gladiolus · Iridaceae 3 counties
• 
  Gladiolus tristis L. Introduced GLTR2

  ever-flowering gladiolus · Iridaceae 1 county
• 
  Glandularia pulchella (Sweet) Troncoso Introduced GLPU3

  South American mock vervain · Verbenaceae 3 counties
• 
  Glaucium flavum Crantz Introduced GLFL

  yellow hornpoppy · Papaveraceae 2 counties
• 
  Glebionis carinatum (Schousb.) Tzvelev Introduced GLCA5

  tricolor daisy · Asteraceae 1 county
• 
  Glebionis coronarium (L.) Tzvelev Introduced GLCO6

  crowndaisy · Asteraceae 11 counties
• 
  Glebionis segetum (L.) Fourr. Introduced GLSE5

  corndaisy · Asteraceae 10 counties
• 
  Glechoma hederacea L. Introduced GLHE2

  ground ivy · Lamiaceae 11 counties
• 
  Glinus lotoides L. Introduced GLLO

  lotus sweetjuice · Molluginaceae 17 counties
• 
  Glyceria fluitans (L.) R. Br. Introduced GLFL2

  water mannagrass · Poaceae 5 counties
• 
  Glycyrrhiza glabra L. Introduced GLGL

  cultivated licorice · Fabaceae 3 counties
• ⚘
  Gracilariopsis chorda (Holmes) Ohmi Introduced GRCH4

  gracilariopsis · Gracilariaceae 1 county
• 
  Grateloupia asiatica S. Kawaguchi & H.W. Wang Introduced GRAS4

  grateloupia · Halymeniaceae 1 county
• 
  Guizotia abyssinica (L. f.) Cass. Introduced GUAB

  ramtilla · Asteraceae 4 counties
• 
  Gunnera tinctoria (Molina) Mirb. Introduced GUTI

  Chilean gunnera · Gunneraceae 1 county
• 
  Gypsophila elegans M. Bieb. Introduced GYEL

  showy baby's-breath · Caryophyllaceae 1 county
• 
  Gypsophila paniculata L. Introduced GYPA

  baby's breath · Caryophyllaceae 16 counties
• 
  Gypsophila scorzonerifolia Ser. Introduced GYSC

  garden baby's-breath · Caryophyllaceae 1 county
• 
  Hainardia cylindrica (Willd.) Greuter Introduced HACY

  barbgrass · Poaceae 23 counties
• 
  Halimium lasianthum (Lam.) Spach Introduced HALA9

  Lisbon false sun-rose · Cistaceae 1 county
• 
  Halimodendron halodendron (Pall.) Voss Introduced HAHA8

  common salttree · Fabaceae 4 counties
• 
  Halogeton glomeratus (M. Bieb.) C.A. Mey. Introduced HAGL

  saltlover · Chenopodiaceae 11 counties
• 
  Haloragis erecta (Murray) Eichler Introduced HAER2

  erect seaberry · Haloragaceae 1 county
• 
  Hebe speciosa (R. Cunn. ex A. Cunn.) J.C. Andersen Introduced HESP

  New Zealand hebe · Scrophulariaceae 1 county
• ⚘
  Hebe ×franciscana (Eastw.) Souster [elliptica × speciosa] Introduced HEFR

  hebe · Scrophulariaceae 1 county
• 
  Hedera helix L. Introduced HEHE

  English ivy · Araliaceae 15 counties
• 
  Hedera helix L. ssp. canariensis (Willd.) Cout. Introduced HEHEC

  Algerian ivy · Araliaceae 4 counties
• 
  Hedypnois cretica (L.) Dum. Cours. Introduced HECR2

  Cretanweed · Asteraceae 22 counties
• 
  Helichrysum petiolare Hilliard & B.L. Burtt Introduced HEPE8

  licorice-plant · Asteraceae 2 counties
• 
  Heliotropium amplexicaule Vahl Introduced HEAM4

  clasping heliotrope · Boraginaceae 2 counties
• 
  Heliotropium europaeum L. Introduced HEEU

  European heliotrope · Boraginaceae 7 counties
• 
  Herniaria hirsuta L. Introduced HEHI7

  hairy rupturewort · Caryophyllaceae 26 counties
• 
  Herniaria hirsuta L. ssp. cinerea (DC.) Coutinho Introduced HEHIC

  hairy rupturewort · Caryophyllaceae 20 counties
• 
  Herniaria hirsuta L. ssp. hirsuta Introduced HEHIH

  hairy rupturewort · Caryophyllaceae 12 counties
• 
  Hesperis matronalis L. Introduced HEMA3

  dames rocket · Brassicaceae 3 counties
• 
  Heteranthemis viscidehirta Schott Introduced HEVI12

  sticky oxeye · Asteraceae 11 counties
• 
  Hibiscus trionum L. Introduced HITR

  flower of an hour · Malvaceae 2 counties
• 
  Hieracium aurantiacum L. Introduced HIAU

  orange hawkweed · Asteraceae 1 county
• 
  Hirschfeldia incana (L.) Lagr.-Foss. Introduced HIIN3

  shortpod mustard · Brassicaceae 35 counties
• 
  Hoheria populnea A. Cunn. Introduced HOPO5

  lacebark · Malvaceae 1 county
• 
  Holcus lanatus L. Introduced HOLA

  common velvetgrass · Poaceae 39 counties
• 
  Holcus mollis L. Introduced HOMO

  creeping velvetgrass · Poaceae 2 counties
• 
  Holosteum umbellatum L. Introduced HOUM

  jagged chickweed · Caryophyllaceae 5 counties
• 
  Hordeum marinum Huds. Introduced HOMA2

  seaside barley · Poaceae 47 counties
• 
  Hordeum marinum Huds. ssp. gussoneanum (Parl.) Thell. Introduced HOMAG

  Mediterranean barley · Poaceae 47 counties