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 2,551–2,600 of 3,424.

• 
  Ranunculus ambigens S. Watson Native RAAM

  waterplantain spearwort · Ranunculaceae 20 counties
• 
  Ranunculus arvensis L. Introduced RAAR3

  corn buttercup · Ranunculaceae 1 county
• 
  Ranunculus bulbosus L. Introduced RABU

  St. Anthony's turnip · Ranunculaceae 9 counties
• 
  Ranunculus fascicularis Muhl. ex Bigelow Native RAFA

  early buttercup · Ranunculaceae 15 counties
• 
  Ranunculus ficaria L. Introduced RAFI

  fig buttercup · Ranunculaceae 4 counties
• 
  Ranunculus ficaria L. var. bulbifera Marsden-Jones Introduced RAFIB

  fig buttercup · Ranunculaceae 4 counties
• 
  Ranunculus flabellaris Raf. Native RAFL

  yellow water buttercup · Ranunculaceae 24 counties
• 
  Ranunculus hispidus Michx. Native RAHI

  bristly buttercup · Ranunculaceae 79 counties
• 
  Ranunculus hispidus Michx. var. caricetorum (Greene) T. Duncan Native RAHIC

  bristly buttercup · Ranunculaceae 67 counties
• 
  Ranunculus hispidus Michx. var. hispidus Native RAHIH

  bristly buttercup · Ranunculaceae 55 counties
• 
  Ranunculus hispidus Michx. var. nitidus (Chapm.) T. Duncan Native RAHIN

  bristly buttercup · Ranunculaceae 44 counties
• 
  Ranunculus longirostris Godr. Native RALO2

  longbeak buttercup · Ranunculaceae 27 counties
• 
  Ranunculus micranthus Nutt. Native RAMI2

  rock buttercup · Ranunculaceae 29 counties
• 
  Ranunculus pensylvanicus L. f. Native RAPE2

  Pennsylvania buttercup · Ranunculaceae 23 counties
• 
  Ranunculus pusillus Poir. Native RAPU

  low spearwort · Ranunculaceae 6 counties
• 
  Ranunculus pusillus Poir. var. pusillus Native RAPUP

  low spearwort · Ranunculaceae 6 counties
• 
  Ranunculus recurvatus Poir. Native RARE2

  blisterwort · Ranunculaceae 68 counties
• 
  Ranunculus recurvatus Poir. var. recurvatus Native RARER2

  blisterwort · Ranunculaceae 68 counties
• 
  Ranunculus repens L. Introduced RARE3

  creeping buttercup · Ranunculaceae 22 counties
• 
  Ranunculus sceleratus L. Native RASC3

  cursed buttercup · Ranunculaceae 3 counties
• 
  Ranunculus sceleratus L. var. sceleratus Native RASCS

  cursed buttercup · Ranunculaceae 3 counties
• 
  Raphanus raphanistrum L. Introduced RARA2

  wild radish · Brassicaceae 13 counties
• ⚘
  Raphanus sativus L. Introduced RASA2

  cultivated radish · Brassicaceae 23 counties
• 
  Ratibida columnifera (Nutt.) Wooton & Standl. Native RACO3

  upright prairie coneflower · Asteraceae 1 county
• 
  Ratibida pinnata (Vent.) Barnhart Native RAPI

  pinnate prairie coneflower · Asteraceae 45 counties
• 
  Reseda alba L. Introduced REAL

  white upright mignonette · Resedaceae 2 counties
• 
  Reseda luteola L. Introduced RELU2

  weld · Resedaceae 3 counties
• 
  Rhamnus alnifolia L'Hér. Native RHAL

  alderleaf buckthorn · Rhamnaceae 12 counties
• 
  Rhamnus cathartica L. Introduced RHCA3

  common buckthorn · Rhamnaceae 17 counties
• 
  Rhamnus lanceolata Pursh Native RHLA

  lanceleaf buckthorn · Rhamnaceae 26 counties
• 
  Rheum rhabarbarum L. Introduced RHRH2

  garden rhubarb · Polygonaceae 1 county
• 
  Rhexia virginica L. Native RHVI

  handsome Harry · Melastomataceae 13 counties
• 
  Rhododendron calendulaceum (Michx.) Torr. Native RHCA4

  flame azalea · Ericaceae 7 counties
• 
  Rhododendron maximum L. Native RHMA4

  great laurel · Ericaceae 8 counties
• 
  Rhododendron periclymenoides (Michx.) Shinners Native RHPE4

  pink azalea · Ericaceae 16 counties
• 
  Rhododendron prinophyllum (Small) Millais Native RHPR

  early azalea · Ericaceae 10 counties
• 
  Rhus aromatica Aiton Native RHAR4

  fragrant sumac · Anacardiaceae 42 counties
• 
  Rhus aromatica Aiton var. arenaria (Greene) Fernald Native RHARA

  fragrant sumac · Anacardiaceae 1 county
• 
  Rhus aromatica Aiton var. aromatica Native RHARA2

  fragrant sumac · Anacardiaceae 40 counties
• 
  Rhus copallinum L. Native RHCO

  winged sumac · Anacardiaceae 53 counties
• 
  Rhus copallinum L. var. copallinum Native RHCOC

  winged sumac · Anacardiaceae 4 counties
• 
  Rhus copallinum L. var. latifolia Engl. Native RHCOL2

  winged sumac · Anacardiaceae 52 counties
• 
  Rhus glabra L. Native RHGL

  smooth sumac · Anacardiaceae 88 counties
• 
  Rhus typhina L. Native RHTY

  staghorn sumac · Anacardiaceae 62 counties
• 
  Rhus ×borealis Greene [glabra × typhina] Native RHBO

  hybrid sumac · Anacardiaceae 2 counties
• 
  Rhynchospora alba (L.) Vahl Native RHAL3

  white beaksedge · Cyperaceae 12 counties
• 
  Rhynchospora capillacea Torr. Native RHCA11

  needle beaksedge · Cyperaceae 9 counties
• 
  Rhynchospora capitellata (Michx.) Vahl Native RHCA12

  brownish beaksedge · Cyperaceae 17 counties
• 
  Rhynchospora recognita (Gale) Kral Native RHRE8

  globe beaksedge · Cyperaceae 3 counties
• 
  Ribes americanum Mill. Native RIAM2

  American black currant · Grossulariaceae 62 counties