Skip to content
OpenPhenologybeta

Explore

Ohio

Ecoregions: Southern Great Lakes forests (68%) and Appalachian mixed mesophytic forests (29%)

Temperate Broadleaf & Mixed Forests. Shares of the land area. Ecoregions: RESOLVE Ecoregions 2017 (Dinerstein et al. 2017) (opens in a new tab), CC BY 4.0 (opens in a new tab)

Land cover: farmland 49%, forest 30%, developed 18%

Water covers 9% of the state.

Elevation: 330 to 1,550 ft, mostly around 930 ft (102–471 m)

Land cover as shares of the land area. Land cover: USGS Annual NLCD, 2025 (opens in a new tab). Elevation: USGS 3D Elevation Program (opens in a new tab)

Warmth so far: Not available yet.

species with a result
4,233
counties
88
records, 2016 to 2025
1,691,199

Species with a result, by county

Adams County: 1–249 speciesAllen County: 1–249 speciesAshland County: 1–249 speciesAshtabula County: 1–249 speciesAthens County: 250–999Auglaize County: 1–249 speciesBelmont County: 1–249 speciesBrown County: 1–249 speciesButler County: 250–999Carroll County: 1–249 speciesChampaign County: 1–249 speciesClark County: 1–249 speciesClermont County: 250–999Clinton County: 1–249 speciesColumbiana County: 1–249 speciesCoshocton County: 1–249 speciesCrawford County: 1–249 speciesCuyahoga County: 250–999Darke County: 1–249 speciesDefiance County: 1–249 speciesDelaware County: 250–999Erie County: 1–249 speciesFairfield County: 1–249 speciesFayette County: 1–249 speciesFranklin County: 250–999Fulton County: 1–249 speciesGallia County: 1–249 speciesGeauga County: 1–249 speciesGreene County: 250–999Guernsey County: 1–249 speciesHamilton County: 250–999Hancock County: 1–249 speciesHardin County: 1–249 speciesHarrison County: 1–249 speciesHenry County: 1–249 speciesHighland County: 1–249 speciesHocking County: 1–249 speciesHolmes County: 1–249 speciesHuron County: 1–249 speciesJackson County: 1–249 speciesJefferson County: 1–249 speciesKnox County: 1–249 speciesLake County: 250–999Lawrence County: 1–249 speciesLicking County: 1–249 speciesLogan County: 1–249 speciesLorain County: 250–999Lucas County: 250–999Madison County: 1–249 speciesMahoning County: 1–249 speciesMarion County: 1–249 speciesMedina County: 250–999Meigs County: 1–249 speciesMercer County: 1–249 speciesMiami County: 1–249 speciesMonroe County: 1–249 speciesMontgomery County: 250–999Morgan County: 1–249 speciesMorrow County: 1–249 speciesMuskingum County: 1–249 speciesNoble County: 1–249 speciesOttawa County: 1–249 speciesPaulding County: 1–249 speciesPerry County: 1–249 speciesPickaway County: 1–249 speciesPike County: 1–249 speciesPortage County: 250–999Preble County: 1–249 speciesPutnam County: 1–249 speciesRichland County: 1–249 speciesRoss County: 1–249 speciesSandusky County: 1–249 speciesScioto County: 1–249 speciesSeneca County: 1–249 speciesShelby County: 1–249 speciesStark County: 250–999Summit County: 250–999Trumbull County: 1–249 speciesTuscarawas County: 1–249 speciesUnion County: 1–249 speciesVan Wert County: 1–249 speciesVinton County: 1–249 speciesWarren County: 1–249 speciesWashington County: 1–249 speciesWayne County: 1–249 speciesWilliams County: 1–249 speciesWood County: 1–249 speciesWyandot County: 1–249 species
  • No species with a result yet (0)
  • 1–249 species (72)
  • 250–999 (16)
  • 1,000 or more (0)
Boundaries: U.S. Census Bureau, 2025 Cartographic Boundary Files, 1:500,000. Show as a table

Most species with a result

  1. 1Summit County836
  2. 2Hamilton County816
  3. 3Cuyahoga County809
  4. 4Franklin County785
  5. 5Lucas County605

A county's count depends on how many records were made there. A low number means fewer records, not fewer species.

Counties by ecoregion

Each county is listed under every ecoregion that covers at least 5% of its land.

Southern Great Lakes forests

Temperate Broadleaf & Mixed Forests. 68% of Ohio's land. 67 counties

Entirely in it (47)

Partly in it (20) · share of the county's land

Appalachian mixed mesophytic forests

Temperate Broadleaf & Mixed Forests. 29% of Ohio's land. 30 counties

Entirely in it (17)

Partly in it (13) · share of the county's land

Eastern Great Lakes lowland forests

Temperate Broadleaf & Mixed Forests. Under 5% of Ohio's land. 6 counties

Partly in it (6) · share of the county's land

Interior Plateau US Hardwood Forests

Temperate Broadleaf & Mixed Forests. Under 5% of Ohio's land. 5 counties

Partly in it (5) · share of the county's land

Ecoregions: RESOLVE Ecoregions 2017 (Dinerstein et al. 2017) (opens in a new tab), CC BY 4.0 (opens in a new tab)

More ways to explore Ohio

Every species with a result in Ohio

Search by place and dates

4,233 species

Abbott's Sphinx (Sphecodina abbottii)Abbott's SphinxSphecodina abbottii · Butterflies and mothsPhoto © Lori A Owenby · CC BY-NC 4.0Early May to late July, middle week Jun 21–27Abbreviated Button Slug Moth (Tortricidia flexuosa)Abbreviated Button Slug MothTortricidia flexuosa · Butterflies and mothsPhoto © Nick Block · CC BY 4.0Mid-June to late July, middle week Jul 12–18Aborted entolomaEntoloma abortivum · FungiLate August to early November, middle week Sep 27 – Oct 3Abraded Camouflage Lichen (Melanelixia subaurifera)Abraded Camouflage LichenMelanelixia subaurifera · LichensPhoto © psweet · CC BY-SA 4.0No Ohio season yetAbrupt Digger Bee (Anthophora abrupta)Abrupt Digger BeeAnthophora abrupta · Bees, wasps and antsPhoto © beewilliams · CC BY-NC 4.0Late May to mid-July, middle week Jun 14–20Acadian Flycatcher (Empidonax virescens)Acadian FlycatcherEmpidonax virescens · BirdsPhoto © Luis Trinchan · CC BY-NC 4.0Early May to early September, middle week May 31 – Jun 6Acalypha ostryifoliaAcalypha ostryifolia · Flowering plantsNo Ohio season yetAceria carviAceria carvi · Other arachnidsNo Ohio season yetAceria caulleryiAceria caulleryi · Other arachnidsMid-June to mid-September, middle week Jul 12–18Aceria negunisAceria negunis · Other arachnidsEarly May to late September, middle week Jun 14–20Achemon Sphinx (Eumorpha achemon)Achemon SphinxEumorpha achemon · Butterflies and mothsPhoto © Ken-ichi Ueda · CC BY 4.0No Ohio season yetAcholla multispinosaAcholla multispinosaAcholla multispinosa · True bugsPhoto © Dom Col · CC BY-NC 4.0No Ohio season yetAcraspis villosaAcraspis villosaAcraspis villosa · Bees, wasps and antsPhoto © Mark Kluge · CC BY-NC 4.0No Ohio season yetAcroricnus stylatorAcroricnus stylatorAcroricnus stylator · Bees, wasps and antsPhoto © Owen Strickland · CC BY 4.0No Ohio season yetAcrotaphus wiltiiAcrotaphus wiltiiAcrotaphus wiltii · Bees, wasps and antsPhoto © Anita Gould · CC BY-NC 4.0Mid-June to early October, middle week Aug 9–15Acutalis tartareaAcutalis tartareaAcutalis tartarea · True bugsPhoto © anhe · CC BY-NC 4.0No season shownAcute Bladder Snail (Physella acuta)Acute Bladder SnailPhysella acuta · Snails and slugsPhoto © Smithsonian Environmental Research Center · CC BY 4.0No Ohio season yetAeolus melliculusAeolus melliculusAeolus melliculus · BeetlesPhoto © Associação Vita Nativa · CC BY-NC 4.0No Ohio season yetAfflicted Dagger (Acronicta afflicta)Afflicted DaggerAcronicta afflicta · Butterflies and mothsPhoto © jayrand · CC BY-NC 4.0No Ohio season yetAgreeable Tiger Moth (Spilosoma congrua)Agreeable Tiger MothSpilosoma congrua · Butterflies and mothsPhoto © Craig&Sharon · CC BY-NC 4.0No season shownAgrilus cyanescensAgrilus cyanescensAgrilus cyanescens · BeetlesPhoto © Denis Doucet · CC BY-NC 4.0Early May to late June, middle week May 31 – Jun 6Agrocybe acericolaAgrocybe acericola · FungiNo Ohio season yetAgromyza vockerothiAgromyza vockerothiAgromyza vockerothi · FliesPhoto © Joe MacIndewar · CC BY-NC 4.0No season shownagueweed (Gentianella quinquefolia)agueweedGentianella quinquefolia · Flowering plantsPhoto © Peter Gorman · CC BY-NC-SA 4.0No Ohio season yetAilanthus Webworm Moth (Atteva aurea)Ailanthus Webworm MothAtteva aurea · Butterflies and mothsPhoto © Glen Peterson · CC BY-NC-SA 4.0Mid-June to early October, middle week Aug 9–15alder buckthorn (Frangula alnus)alder buckthornFrangula alnus · Flowering plantsPhoto © Sten Porse · CC BY-SA 4.0Early May to late October, middle week Jul 26 – Aug 1Alder Flycatcher (Empidonax alnorum)Alder FlycatcherEmpidonax alnorum · BirdsPhoto © Mark Dennis · CC BY-NC 4.0Mid-May to late June, middle week May 24–30Alder Spittlebug (Clastoptera obtusa)Alder SpittlebugClastoptera obtusa · True bugsPhoto © Katja Schulz · CC BY 4.0Mid-June to mid-October, middle week Jul 19–25Alfalfa (Medicago sativa)AlfalfaMedicago sativa · Flowering plantsPhoto © Wolfgang Bacher · CC BY-NC 4.0Early June to late August, middle week Jul 5–11Alfalfa Leafcutter Bee (Megachile rotundata)Alfalfa Leafcutter BeeMegachile rotundata · Bees, wasps and antsPhoto © Heather Holm · CC BY-NC 4.0Late May to mid-September, middle week Aug 2–8Alfalfa Plant Bug (Adelphocoris lineolatus)Alfalfa Plant BugAdelphocoris lineolatus · True bugsPhoto © Gordon Johnston · CC BY-SA 4.0No season shownAlgal Haircap Moss (Pogonatum pensilvanicum)Algal Haircap MossPogonatum pensilvanicum · Mosses, liverworts and hornwortsPhoto © Shaun Pogacnik · CC BY-NC 4.0No Ohio season yetAllegheny blackberry (Rubus allegheniensis)Allegheny blackberryRubus allegheniensis · Flowering plantsLate in its seasonPhoto © Eileen D · CC BY-NC 4.0Early May to early November, middle week Jul 5–11Allegheny Chinquapin (Castanea pumila)Allegheny ChinquapinCastanea pumila · Flowering plantsPhoto © Keith Kutsko · CC BY-NC 4.0No Ohio season yetAllegheny monkeyflower (Mimulus ringens)Allegheny monkeyflowerMimulus ringens · Flowering plantsPhoto © Rich Hull · CC BY-NC 4.0Early July to late September, middle week Aug 2–8Allegheny Mound Ant (Formica exsectoides)Allegheny Mound AntFormica exsectoides · Bees, wasps and antsPhoto © emendela · CC BY-NC 4.0No Ohio season yetAllegheny Mountain Dusky Salamander (Desmognathus ochrophaeus)Allegheny Mountain Dusky SalamanderDesmognathus ochrophaeus · AmphibiansPhoto © Ty Smith · CC BY-NC 4.0Mid-April to mid-October, middle week Jun 14–20Allegheny Spurge (Pachysandra procumbens)Allegheny SpurgePachysandra procumbens · Flowering plantsPhoto © Michael J. Papay · CC BY 4.0No Ohio season yetAllocosa funereaAllocosa funereaAllocosa funerea · SpidersPhoto © John P Friel · CC BY 4.0No Ohio season yetAlsike clover (Trifolium hybridum)Alsike cloverTrifolium hybridum · Flowering plantsPhoto © Charles Kuss · CC BY-NC 4.0Mid-May to late September, middle week Jun 21–27alternate-leaved dogwood (Cornus alternifolia)alternate-leaved dogwoodCornus alternifolia · Flowering plantsPhoto © petercroal · CC BY-NC 4.0Late April to early October, middle week May 31 – Jun 6Amanita Mold (Hypomyces hyalinus)Amanita MoldHypomyces hyalinus · FungiPhoto © Daniel Onea · CC BY-NC 4.0Late June to mid-September, middle week Jul 26 – Aug 1Amber Ridged Millipede (Cambala minor)Amber Ridged MillipedeCambala minor · Other animalsPhoto © David Hochadel · CC BY-NC 4.0No Ohio season yetAmber-winged Spreadwing (Lestes eurinus)Amber-winged SpreadwingLestes eurinus · Dragonflies and damselfliesPhoto © Joe Bartok · CC BY-NC 4.0Mid-May to mid-July, middle week Jun 7–13Ambiguous Moth (Lascoria ambigualis)Ambiguous MothLascoria ambigualis · Butterflies and mothsPhoto © Chuck Sexton · CC BY-NC 4.0No season shownAmblysellus curtisiiAmblysellus curtisiiAmblysellus curtisii · True bugsPhoto © solomon v. hendrix · CC BY-NC 4.0No Ohio season yetAmerican Abrupt-bulbed Lepidella (Amanita abrupta)American Abrupt-bulbed LepidellaAmanita abrupta · FungiPhoto © Django Grootmyers · CC BY-SA 4.0Early July to mid-September, middle week Aug 9–15American alumroot (Heuchera americana)American alumrootHeuchera americana · Flowering plantsPhoto © Suzanne Cadwell · CC BY-NC 4.0No Ohio season yet

Showing 48 of 4,233

More lists for Ohio