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 1,401–1,450 of 9,954.

• 
  Buddleja davidii Franch. Introduced BUDA2

  orange eye butterflybush · Buddlejaceae 6 counties
• 
  Buddleja saligna Willd. Introduced BUSA

  squarestem butterflybush · Buddlejaceae 1 county
• 
  Buddleja utahensis Coville Native BUUT

  Utah butterflybush · Buddlejaceae 2 counties
• 
  Buglossoides arvensis (L.) I.M. Johnst. Introduced BUAR3

  corn gromwell · Boraginaceae 3 counties
• 
  Bulbostylis barbata (Rottb.) C.B. Clarke Introduced BUBA

  watergrass · Cyperaceae 1 county
• 
  Bulbostylis capillaris (L.) Kunth ex C.B. Clarke Native BUCA2

  densetuft hairsedge · Cyperaceae 8 counties
• 
  Bulbostylis capillaris (L.) Kunth ex C.B. Clarke ssp. capillaris Native BUCAC

  densetuft hairsedge · Cyperaceae 8 counties
• 
  Bupleurum lancifolium Hornem. Introduced BULA3

  lanceleaf thorow wax · Apiaceae 4 counties
• 
  Bursera microphylla A. Gray Native BUMI

  elephant tree · Burseraceae 3 counties
• 
  Cabomba caroliniana A. Gray Native CACA

  Carolina fanwort · Cabombaceae 3 counties
• 
  Cabomba caroliniana A. Gray var. caroliniana Native CACAC4

  Carolina fanwort · Cabombaceae 3 counties
• 
  Cacaliopsis nardosmia (A. Gray) A. Gray Native CANA5

  silvercrown · Asteraceae 11 counties
• 
  Caesalpinia gilliesii (Wall. ex Hook.) Wall. ex D. Dietr. Introduced CAGI

  bird-of-paradise shrub · Fabaceae 3 counties
• 
  Caesalpinia spinosa (Molina) Kuntze Introduced CASP11

  spiny holdback · Fabaceae 1 county
• 
  Cakile edentula (Bigelow) Hook. Native CAED

  American searocket · Brassicaceae 12 counties
• 
  Cakile edentula (Bigelow) Hook. ssp. edentula Native CAEDE

  American searocket · Brassicaceae 12 counties
• 
  Cakile edentula (Bigelow) Hook. ssp. edentula var. edentula Native CAEDE2

  American searocket · Brassicaceae 12 counties
• 
  Cakile maritima Scop. Introduced CAMA

  European searocket · Brassicaceae 17 counties
• 
  Calamagrostis bolanderi Thurb. Native CABO

  Bolander's reedgrass · Poaceae 3 counties
• 
  Calamagrostis breweri Thurb. Native CABR

  shorthair reedgrass · Poaceae 13 counties
• 
  Calamagrostis canadensis (Michx.) P. Beauv. Native CACA4

  bluejoint · Poaceae 20 counties
• 
  Calamagrostis canadensis (Michx.) P. Beauv. var. canadensis Native CACAC10

  bluejoint · Poaceae 20 counties
• 
  Calamagrostis foliosa Kearney Native CAFO

  leafy reedgrass · Poaceae 3 counties
• 
  Calamagrostis koelerioides Vasey Native CAKO

  fire reedgrass · Poaceae 16 counties
• 
  Calamagrostis muiriana B.L. Wilson & Sami Gray Native CAMU15

  Muir's reedgrass · Poaceae 7 counties
• 
  Calamagrostis nutkaensis (J. Presl) J. Presl ex Steud. Native CANU

  Pacific reedgrass · Poaceae 10 counties
• 
  Calamagrostis ophitidis (J.T. Howell) Nygren Native CAOP2

  serpentine reedgrass · Poaceae 5 counties
• 
  Calamagrostis purpurascens R. Br. Native CAPU

  purple reedgrass · Poaceae 9 counties
• 
  Calamagrostis purpurascens R. Br. var. purpurascens Native CAPUP7

  purple reedgrass · Poaceae 9 counties
• 
  Calamagrostis rubescens Buckley Native CARU

  pinegrass · Poaceae 18 counties
• 
  Calamagrostis stricta (Timm) Koeler Native CAST36

  slimstem reedgrass · Poaceae 14 counties
• 
  Calamagrostis stricta (Timm) Koeler ssp. inexpansa (A. Gray) C.W. Greene Native CASTI3

  northern reedgrass · Poaceae 14 counties
• 
  Calamagrostis stricta (Timm) Koeler ssp. stricta Native CASTS5

  slimstem reedgrass · Poaceae 4 counties
• 
  Calamagrostis stricta (Timm) Koeler ssp. stricta var. stricta Native CASTS8

  slimstem reedgrass · Poaceae 4 counties
• 
  Calamintha sylvatica Bromf. Introduced CASY6

  woodland calamint · Lamiaceae 1 county
• 
  Calamintha sylvatica Bromf. ssp. ascendens (Jord.) P.W. Ball Introduced CASYA

  woodland calamint · Lamiaceae 1 county
• 
  Calandrinia breweri S. Watson Native CABR3

  Brewer's redmaids · Portulacaceae 16 counties
• 
  Calandrinia ciliata (Ruiz & Pav.) DC. Native CACI2

  fringed redmaids · Portulacaceae 50 counties
• 
  Calendula arvensis L. Introduced CAAR

  field marigold · Asteraceae 7 counties
• 
  Calendula officinalis L. Introduced CAOF

  pot marigold · Asteraceae 8 counties
• 
  Calibrachoa parviflora (Juss.) D'Arcy Introduced CAPA47

  seaside petunia · Solanaceae 17 counties
• 
  Calliandra eriophylla Benth. Native CAER

  fairyduster · Fabaceae 2 counties
• 
  Calliscirpus brachythrix C.N. Gilmour, J.R. Starr & Naczi Native CABR30

  short-hair cottongrass · Cyperaceae 13 counties
• 
  Calliscirpus criniger (A. Gray) C.N. Gilmour, J.R. Starr & Naczi Native CACR29

  fringed cottongrass · Cyperaceae 8 counties
• 
  Callitriche hermaphroditica L. Native CAHE2

  northern water-starwort · Callitrichaceae 16 counties
• 
  Callitriche heterophylla Pursh Native CAHE3

  twoheaded water-starwort · Callitrichaceae 32 counties
• 
  Callitriche heterophylla Pursh ssp. bolanderi (Hegelm.) Calder & Roy L. Taylor Native CAHEB3

  Bolander's water-starwort · Callitrichaceae 29 counties
• 
  Callitriche heterophylla Pursh ssp. heterophylla Native CAHEH

  twoheaded water-starwort · Callitrichaceae 8 counties
• 
  Callitriche longipedunculata Morong Native CALO2

  longstock water-starwort · Callitrichaceae 2 counties
• 
  Callitriche marginata Torr. Native CAMA3

  winged water-starwort · Callitrichaceae 39 counties