Ohio

• Adams 39001
  1,331 taxa Open ↗
• Allen 39003
  1,038 taxa Open ↗
• Ashland 39005
  998 taxa Open ↗
• Ashtabula 39007
  1,437 taxa Open ↗
• Athens 39009
  1,149 taxa Open ↗
• Auglaize 39011
  958 taxa Open ↗
• Belmont 39013
  945 taxa Open ↗
• Brown 39015
  629 taxa Open ↗
• Butler 39017
  850 taxa Open ↗
• Carroll 39019
  933 taxa Open ↗

Showing 751–800 of 3,424.

• 
  Chelone glabra L. Native CHGL2

  white turtlehead · Scrophulariaceae 67 counties
• 
  Chelone obliqua L. Native CHOB3

  red turtlehead · Scrophulariaceae 1 county
• 
  Chelone obliqua L. var. speciosa Pennell & Wherry Native CHOBS

  red turtlehead · Scrophulariaceae 1 county
• 
  Chenopodium album L. Both CHAL7

  lambsquarters · Chenopodiaceae 81 counties
• 
  Chenopodium album L. var. album Introduced CHALA

  lambsquarters · Chenopodiaceae 3 counties
• 
  Chenopodium album L. var. missouriense (Aellen) I.J. Bassett & C.W. Crompton Native CHALM2

  Missouri lambsquarters · Chenopodiaceae 2 counties
• 
  Chenopodium berlandieri Moq. Native CHBE4

  pitseed goosefoot · Chenopodiaceae 3 counties
• 
  Chenopodium berlandieri Moq. var. bushianum (Aellen) Cronquist Native CHBEB3

  Bush's goosefoot · Chenopodiaceae 2 counties
• 
  Chenopodium berlandieri Moq. var. zschackii (Murr) Murr ex Asch. Native CHBEZ

  Zschack's goosefoot · Chenopodiaceae 2 counties
• 
  Chenopodium capitatum (L.) Asch. Native CHCA4

  blite goosefoot · Chenopodiaceae 8 counties
• 
  Chenopodium glaucum L. Introduced CHGL3

  oakleaf goosefoot · Chenopodiaceae 22 counties
• 
  Chenopodium incanum (S. Watson) A. Heller Native CHIN2

  mealy goosefoot · Chenopodiaceae 1 county
• 
  Chenopodium incanum (S. Watson) A. Heller var. incanum Native CHINI

  mealy goosefoot · Chenopodiaceae 1 county
• 
  Chenopodium murale L. Introduced CHMU2

  nettleleaf goosefoot · Chenopodiaceae 26 counties
• 
  Chenopodium polyspermum L. Introduced CHPO

  manyseed goosefoot · Chenopodiaceae 2 counties
• 
  Chenopodium polyspermum L. var. acutifolium (Sm.) Gaudich. Introduced CHPOA

  manyseed goosefoot · Chenopodiaceae 2 counties
• 
  Chenopodium pratericola Rydb. Native CHPR5

  desert goosefoot · Chenopodiaceae 4 counties
• 
  Chenopodium simplex (Torr.) Raf. Native CHSI2

  mapleleaf goosefoot · Chenopodiaceae 35 counties
• 
  Chenopodium standleyanum Aellen Native CHST2

  Standley's goosefoot · Chenopodiaceae 23 counties
• 
  Chenopodium subglabrum (S. Watson) A. Nelson Native CHSU2

  smooth goosefoot · Chenopodiaceae 7 counties
• 
  Chenopodium urbicum L. Introduced CHUR

  city goosefoot · Chenopodiaceae 4 counties
• 
  Chenopodium vulvaria L. Introduced CHVU

  stinking goosefoot · Chenopodiaceae 4 counties
• 
  Chimaphila maculata (L.) Pursh Native CHMA3

  striped prince's pine · Pyrolaceae 47 counties
• 
  Chimaphila umbellata (L.) W.P.C. Barton Native CHUM

  pipsissewa · Pyrolaceae 15 counties
• 
  Chimaphila umbellata (L.) W.P.C. Barton ssp. cisatlantica (S.F. Blake) Hultén Native CHUMC2

  pipsissewa · Pyrolaceae 15 counties
• 
  Chionanthus virginicus L. Native CHVI3

  white fringetree · Oleaceae 9 counties
• 
  Chloris virgata Sw. Native CHVI4

  feather fingergrass · Poaceae 1 county
• 
  Chorispora tenella (Pall.) DC. Introduced CHTE2

  crossflower · Brassicaceae 2 counties
• 
  Chrysogonum virginianum L. Native CHVI5

  green and gold · Asteraceae 8 counties
• 
  Chrysogonum virginianum L. var. virginianum Native CHVIV

  green and gold · Asteraceae 8 counties
• 
  Chrysopsis mariana (L.) Elliott Native CHMA14

  Maryland goldenaster · Asteraceae 7 counties
• 
  Chrysosplenium americanum Schwein. ex Hook. Native CHAM2

  American golden saxifrage · Saxifragaceae 31 counties
• 
  Cichorium intybus L. Introduced CIIN

  chicory · Asteraceae 64 counties
• 
  Cicuta bulbifera L. Native CIBU

  bulblet-bearing water hemlock · Apiaceae 38 counties
• 
  Cicuta maculata L. Native CIMA2

  spotted water hemlock · Apiaceae 78 counties
• 
  Cicuta maculata L. var. maculata Native CIMAM

  spotted water hemlock · Apiaceae 78 counties
• 
  Cinna arundinacea L. Native CIAR2

  sweet woodreed · Poaceae 72 counties
• 
  Cinna latifolia (Trevis. ex Goepp.) Griseb. Native CILA2

  drooping woodreed · Poaceae 1 county
• 
  Circaea alpina L. Native CIAL

  small enchanter's nightshade · Onagraceae 29 counties
• 
  Circaea alpina L. ssp. alpina Native CIALA

  small enchanter's nightshade · Onagraceae 29 counties
• 
  Circaea lutetiana L. Native CILU

  broadleaf enchanter's nightshade · Onagraceae 82 counties
• 
  Circaea lutetiana L. ssp. canadensis (L.) Asch. & Magnus Native CILUC

  broadleaf enchanter's nightshade · Onagraceae 82 counties
• ⚘
  Circaea ×intermedia Ehrh. (pro sp.) [alpina × lutetiana] Native CIIN4

  enchanter's nightshade · Onagraceae 6 counties
• 
  Cirsium altissimum (L.) Hill Native CIAL2

  tall thistle · Asteraceae 43 counties
• 
  Cirsium arvense (L.) Scop. Introduced CIAR4

  Canada thistle · Asteraceae 63 counties
• 
  Cirsium carolinianum (Walter) Fernald & B.G. Schub. Native CICA7

  soft thistle · Asteraceae 4 counties
• 
  Cirsium discolor (Muhl. ex Willd.) Spreng. Native CIDI

  field thistle · Asteraceae 56 counties
• 
  Cirsium muticum Michx. Native CIMU

  swamp thistle · Asteraceae 34 counties
• 
  Cirsium pumilum Spreng. Native CIPU4

  pasture thistle · Asteraceae 17 counties
• 
  Cirsium vulgare (Savi) Ten. Introduced CIVU

  bull thistle · Asteraceae 60 counties