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 451–500 of 796 (introduced).

• 
  Melilotus altissimus Thuill. Introduced MEAL3

  tall yellow sweetclover · Fabaceae 2 counties
• 
  Melilotus officinalis (L.) Lam. Introduced MEOF

  sweetclover · Fabaceae 85 counties
• 
  Melissa officinalis L. Introduced MEOF2

  common balm · Lamiaceae 26 counties
• 
  Mentha aquatica L. Introduced MEAQ

  water mint · Lamiaceae 8 counties
• 
  Mentha spicata L. Introduced MESP3

  spearmint · Lamiaceae 70 counties
• ⚘
  Mentha ×gracilis Sole (pro sp.) [arvensis × spicata] Introduced MEGR2

  gingermint · Lamiaceae 7 counties
• ⚘
  Mentha ×rotundifolia (L.) Huds. (pro sp.) [longifolia × suaveolens] Introduced MERO2

  Lamiaceae 10 counties
• 
  Mentha ×villosa Huds. (pro sp.) [spicata × suaveolens] Introduced MEVI6

  mint · Lamiaceae 4 counties
• 
  Mercurialis annua L. Introduced MEAN

  annual mercury · Euphorbiaceae 2 counties
• 
  Metasequoia glyptostroboides Hu & W.C. Cheng Introduced MEGL8

  dawn redwood · Cupressaceae 1 county
• 
  Microstegium vimineum (Trin.) A. Camus Introduced MIVI

  Nepalese browntop · Poaceae 2 counties
• 
  Microthlaspi perfoliatum (L.) F.K. Mey. Introduced MIPE8

  claspleaf pennycress · Brassicaceae 19 counties
• 
  Mirabilis jalapa L. Introduced MIJA

  marvel of Peru · Nyctaginaceae 4 counties
• 
  Miscanthus sinensis Andersson Introduced MISI

  Chinese silvergrass · Poaceae 4 counties
• 
  Misopates orontium (L.) Raf. Introduced MIOR

  linearleaf snapdragon · Scrophulariaceae 1 county
• 
  Morus alba L. Introduced MOAL

  white mulberry · Moraceae 86 counties
• 
  Morus nigra L. Introduced MONI

  black mulberry · Moraceae 3 counties
• 
  Muscari botryoides (L.) Mill. Introduced MUBO

  common grape hyacinth · Liliaceae 4 counties
• 
  Muscari comosum (L.) Mill. Introduced MUCO2

  tassel grape hyacinth · Liliaceae 1 county
• 
  Myosotis arvensis (L.) Hill Introduced MYAR

  field forget-me-not · Boraginaceae 11 counties
• 
  Myosotis discolor Pers. Introduced MYDI

  changing forget-me-not · Boraginaceae 4 counties
• 
  Myosotis scorpioides L. Introduced MYSC

  true forget-me-not · Boraginaceae 35 counties
• 
  Myosotis stricta Link ex Roem. & Schult. Introduced MYST2

  strict forget-me-not · Boraginaceae 10 counties
• 
  Myosotis sylvatica Ehrh. Introduced MYSY

  woodland forget-me-not · Boraginaceae 7 counties
• 
  Myosoton aquaticum (L.) Moench Introduced MYAQ

  giantchickweed · Caryophyllaceae 29 counties
• 
  Myriophyllum aquaticum (Vell.) Verdc. Introduced MYAQ2

  parrot feather watermilfoil · Haloragaceae 1 county
• 
  Myriophyllum spicatum L. Introduced MYSP2

  Eurasian watermilfoil · Haloragaceae 43 counties
• 
  Najas minor All. Introduced NAMI

  brittle waternymph · Najadaceae 13 counties
• 
  Narcissus poeticus L. Introduced NAPO

  poet's narcissus · Liliaceae 1 county
• 
  Narcissus pseudonarcissus L. Introduced NAPS

  daffodil · Liliaceae 1 county
• 
  Nasturtium officinale W.T. Aiton Introduced NAOF

  watercress · Brassicaceae 39 counties
• 
  Nelumbo nucifera Gaertn. Introduced NENU2

  sacred lotus · Nelumbonaceae 1 county
• 
  Nepeta cataria L. Introduced NECA2

  catnip · Lamiaceae 78 counties
• 
  Neslia paniculata (L.) Desv. Introduced NEPA3

  ballmustard · Brassicaceae 2 counties
• 
  Nicandra physalodes (L.) Scop. Introduced NIPH

  apple of Peru · Solanaceae 23 counties
• 
  Nicotiana alata Link & Otto Introduced NIAL

  jasmine tobacco · Solanaceae 2 counties
• 
  Nicotiana tabacum L. Introduced NITA

  cultivated tobacco · Solanaceae 2 counties
• 
  Nigella damascena L. Introduced NIDA

  devil in the bush · Ranunculaceae 4 counties
• 
  Nymphoides peltata (S.G. Gmel.) Kuntze Introduced NYPE

  yellow floatingheart · Menyanthaceae 2 counties
• 
  Oenanthe aquatica (L.) Poir. Introduced OEAQ

  fineleaf waterdropwort · Apiaceae 1 county
• 
  Onopordum acanthium L. Introduced ONAC

  Scotch cottonthistle · Asteraceae 11 counties
• 
  Origanum vulgare L. Introduced ORVU

  oregano · Lamiaceae 3 counties
• 
  Ornithogalum nutans L. Introduced ORNU

  drooping star of Bethlehem · Liliaceae 1 county
• 
  Ornithogalum umbellatum L. Introduced ORUM

  star of Bethlehem · Liliaceae 12 counties
• 
  Pachysandra terminalis Siebold & Zucc. Introduced PATE11

  Japanese pachysandra · Buxaceae 2 counties
• 
  Panicum miliaceum L. Introduced PAMI2

  proso millet · Poaceae 5 counties
• 
  Panicum miliaceum L. ssp. miliaceum Introduced PAMIM

  broomcorn millet · Poaceae 5 counties
• 
  Papaver argemone L. Introduced PAAR3

  long pricklyhead poppy · Papaveraceae 2 counties
• 
  Papaver dubium L. Introduced PADU

  blindeyes · Papaveraceae 10 counties
• 
  Papaver rhoeas L. Introduced PARH2

  corn poppy · Papaveraceae 12 counties