Oklahoma

• Adair 40001
  462 taxa Open ↗
• Alfalfa 40003
  443 taxa Open ↗
• Atoka 40005
  275 taxa Open ↗
• Beaver 40007
  382 taxa Open ↗
• Beckham 40009
  298 taxa Open ↗
• Blaine 40011
  437 taxa Open ↗
• Bryan 40013
  935 taxa Open ↗
• Caddo 40015
  574 taxa Open ↗
• Canadian 40017
  444 taxa Open ↗
• Carter 40019
  424 taxa Open ↗

Showing 701–750 of 2,768.

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  Crataegus crus-galli L. Native CRCR2

  cockspur hawthorn · Rosaceae 10 counties
• ⚘
  Crataegus engelmannii Sarg. Native CREN

  Engelmann's hawthorn · Rosaceae 1 county
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  Crataegus intricata Lange Native CRIN3

  Copenhagen hawthorn · Rosaceae 1 county
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  Crataegus mollis Scheele Native CRMO2

  downy hawthorn · Rosaceae 16 counties
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  Crataegus punctata Jacq. Native CRPU

  dotted hawthorn · Rosaceae 1 county
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  Crataegus spathulata Michx. Native CRSP

  littlehip hawthorn · Rosaceae 1 county
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  Crataegus viridis L. Native CRVI2

  green hawthorn · Rosaceae 18 counties
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  Crataegus viridis L. var. viridis Native CRVIV2

  green hawthorn · Rosaceae 18 counties
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  Crepis pulchra L. Introduced CRPU3

  smallflower hawksbeard · Asteraceae 1 county
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  Cressa truxillensis Kunth Native CRTR5

  spreading alkaliweed · Convolvulaceae 1 county
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  Croptilon hookerianum (Torr. & A. Gray) House Native CRHO7

  Hooker's scratchdaisy · Asteraceae 28 counties
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  Croptilon hookerianum (Torr. & A. Gray) House var. validum (Rydb.) E.B. Sm. Native CRHOV

  Hooker's scratchdaisy · Asteraceae 28 counties
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  Crotalaria sagittalis L. Native CRSA4

  arrowhead rattlebox · Fabaceae 19 counties
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  Croton capitatus Michx. Native CRCA6

  hogwort · Euphorbiaceae 32 counties
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  Croton capitatus Michx. var. capitatus Native CRCAC2

  hogwort · Euphorbiaceae 31 counties
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  Croton glandulosus L. Both CRGL2

  vente conmigo · Euphorbiaceae 29 counties
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  Croton glandulosus L. var. septentrionalis Müll. Arg. Native CRGLS

  vente conmigo · Euphorbiaceae 29 counties
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  Croton lindheimerianus Scheele Native CRLI2

  threeseed croton · Euphorbiaceae 17 counties
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  Croton lindheimerianus Scheele var. lindheimerianus Native CRLIL

  threeseed croton · Euphorbiaceae 17 counties
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  Croton michauxii G.L. Webster Native CRMI8

  Michaux's croton · Euphorbiaceae 11 counties
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  Croton michauxii G.L. Webster var. ellipticus (Willd.) B.W. van Ee & P.E. Berry Native CRMIE

  Michaux's croton · Euphorbiaceae 11 counties
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  Croton monanthogynus Michx. Native CRMO6

  prairie tea · Euphorbiaceae 33 counties
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  Croton texensis (Klotzsch) Müll. Arg. Native CRTE4

  Texas croton · Euphorbiaceae 31 counties
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  Croton texensis (Klotzsch) Müll. Arg. var. texensis Native CRTET

  Texas croton · Euphorbiaceae 31 counties
• 
  Cruciata pedemontana (Bellardi) Ehrend. Introduced CRPE10

  piedmont bedstraw · Rubiaceae 1 county
• 
  Cryptantha cinerea (Greene) Cronquist Native CRCI3

  James' cryptantha · Boraginaceae 5 counties
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  Cryptantha cinerea (Greene) Cronquist var. jamesii (Torr.) Cronquist Native CRCIJ

  James' cryptantha · Boraginaceae 5 counties
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  Cryptantha crassisepala (Torr. & A. Gray) Greene Native CRCR3

  thicksepal cryptantha · Boraginaceae 1 county
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  Cryptantha crassisepala (Torr. & A. Gray) Greene var. elachantha I.M. Johnst. Native CRCRE

  thicksepal cryptantha · Boraginaceae 1 county
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  Cryptantha minima Rydb. Native CRMI5

  little cryptantha · Boraginaceae 13 counties
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  Cryptantha thyrsiflora (Greene) Payson Native CRTH

  calcareous cryptantha · Boraginaceae 1 county
• 
  Cryptotaenia canadensis (L.) DC. Native CRCA9

  Canadian honewort · Apiaceae 10 counties
• 
  Cucumis melo L. Introduced CUME

  cantaloupe · Cucurbitaceae 1 county
• 
  Cucurbita foetidissima Kunth Native CUFO

  Missouri gourd · Cucurbitaceae 26 counties
• 
  Cunila origanoides (L.) Britton Native CUOR

  common dittany · Lamiaceae 10 counties
• 
  Cuphea viscosissima Jacq. Native CUVI

  blue waxweed · Lythraceae 11 counties
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  Cuscuta compacta Juss. ex Choisy Native CUCO2

  compact dodder · Cuscutaceae 3 counties
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  Cuscuta compacta Juss. ex Choisy var. compacta Native CUCOC

  compact dodder · Cuscutaceae 3 counties
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  Cuscuta cuspidata Engelm. Native CUCU2

  cusp dodder · Cuscutaceae 22 counties
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  Cuscuta glomerata Choisy Native CUGL3

  rope dodder · Cuscutaceae 4 counties
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  Cuscuta gronovii Willd. ex Schult. Native CUGR

  scaldweed · Cuscutaceae 5 counties
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  Cuscuta gronovii Willd. ex Schult. var. gronovii Native CUGRG

  scaldweed · Cuscutaceae 5 counties
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  Cuscuta indecora Choisy Native CUIN

  bigseed alfalfa dodder · Cuscutaceae 11 counties
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  Cuscuta indecora Choisy var. indecora Native CUINI

  bigseed alfalfa dodder · Cuscutaceae 11 counties
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  Cuscuta pentagona Engelm. Native CUPE3

  fiveangled dodder · Cuscutaceae 13 counties
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  Cuscuta pentagona Engelm. var. glabrior (Engelm.) Gandhi, R.D. Thomas & S.L. Hatch Native CUPEG

  bushclover dodder · Cuscutaceae 1 county
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  Cuscuta pentagona Engelm. var. pentagona Native CUPEP2

  fiveangled dodder · Cuscutaceae 1 county
• 
  Cuscuta polygonorum Engelm. Native CUPO

  smartweed dodder · Cuscutaceae 2 counties
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  Cuscuta umbellata Kunth Native CUUM

  flatglobe dodder · Cuscutaceae 1 county
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  Cyclachaena xanthiifolia (Nutt.) Fresen. Native CYXA2

  carelessweed · Asteraceae 3 counties