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 1,901–1,950 of 3,424.

• 
  Mahonia aquifolium (Pursh) Nutt. Native MAAQ2

  hollyleaved barberry · Berberidaceae 2 counties
• 
  Maianthemum canadense Desf. Native MACA4

  Canada mayflower · Liliaceae 40 counties
• 
  Maianthemum racemosum (L.) Link Native MARA7

  feathery false lily of the valley · Liliaceae 82 counties
• 
  Maianthemum racemosum (L.) Link ssp. racemosum Native MARAR

  feathery false lily of the valley · Liliaceae 82 counties
• 
  Maianthemum stellatum (L.) Link Native MAST4

  starry false lily of the valley · Liliaceae 40 counties
• 
  Maianthemum trifolium (L.) Sloboda Native MATR4

  threeleaf false lily of the valley · Liliaceae 3 counties
• 
  Malaxis unifolia Michx. Native MAUN

  green adder's-mouth orchid · Orchidaceae 15 counties
• 
  Malus angustifolia (Aiton) Michx. Native MAAN3

  southern crab apple · Rosaceae 3 counties
• 
  Malus angustifolia (Aiton) Michx. var. angustifolia Native MAANA

  southern crab apple · Rosaceae 3 counties
• 
  Malus baccata (L.) Borkh. Introduced MABA

  Siberian crab apple · Rosaceae 2 counties
• 
  Malus coronaria (L.) Mill. Native MACO5

  sweet crab apple · Rosaceae 86 counties
• 
  Malus ioensis (Alph. Wood) Britton Native MAIO

  prairie crab apple · Rosaceae 7 counties
• 
  Malus ioensis (Alph. Wood) Britton var. ioensis Native MAIOI

  prairie crab apple · Rosaceae 7 counties
• 
  Malus pumila Mill. Introduced MAPU

  paradise apple · Rosaceae 87 counties
• ⚘
  Malus ×robusta (Carrière) Rehder Introduced MARO10

  Siberian crab apple · Rosaceae 1 county
• 
  Malva alcea L. Introduced MAAL

  vervain mallow · Malvaceae 3 counties
• 
  Malva moschata L. Introduced MAMO2

  musk mallow · Malvaceae 19 counties
• 
  Malva neglecta Wallr. Introduced MANE

  common mallow · Malvaceae 66 counties
• 
  Malva pusilla Sm. Introduced MAPU5

  low mallow · Malvaceae 5 counties
• 
  Malva sylvestris L. Introduced MASY

  high mallow · Malvaceae 10 counties
• 
  Malva verticillata L. Introduced MAVE

  cluster mallow · Malvaceae 2 counties
• 
  Manfreda virginica (L.) Salisb. ex Rose Native MAVI5

  false aloe · Agavaceae 4 counties
• 
  Marrubium vulgare L. Introduced MAVU

  horehound · Lamiaceae 38 counties
• 
  Marsilea quadrifolia L. Introduced MAQU

  European waterclover · Marsileaceae 2 counties
• 
  Matelea obliqua (Jacq.) Woodson Native MAOB2

  climbing milkvine · Asclepiadaceae 13 counties
• 
  Matricaria discoidea DC. Introduced MADI6

  disc mayweed · Asteraceae 55 counties
• 
  Matricaria recutita L. Introduced MARE6

  German chamomile · Asteraceae 7 counties
• 
  Matteuccia struthiopteris (L.) Todaro Native MAST

  ostrich fern · Dryopteridaceae 19 counties
• 
  Mazus pumilus (Burm. f.) Steenis Introduced MAPU7

  Japanese mazus · Scrophulariaceae 2 counties
• 
  Medeola virginiana L. Native MEVI

  Indian cucumber · Liliaceae 57 counties
• 
  Medicago lupulina L. Introduced MELU

  black medick · Fabaceae 80 counties
• 
  Medicago minima (L.) L. Introduced MEMI

  little bur-clover · Fabaceae 1 county
• 
  Medicago sativa L. Introduced MESA

  alfalfa · Fabaceae 61 counties
• 
  Medicago sativa L. ssp. falcata (L.) Arcang. Introduced MESAF

  yellow alfalfa · Fabaceae 1 county
• 
  Medicago sativa L. ssp. sativa Introduced MESAS

  alfalfa · Fabaceae 61 counties
• 
  Meehania cordata (Nutt.) Britton Native MECO

  Meehan's mint · Lamiaceae 14 counties
• 
  Melampyrum lineare Desr. Native MELI2

  narrowleaf cowwheat · Scrophulariaceae 11 counties
• 
  Melampyrum lineare Desr. var. latifolium Bart. Native MELIL2

  narrowleaf cowwheat · Scrophulariaceae 8 counties
• 
  Melica nitens (Scribn.) Nutt. ex Piper Native MENI

  threeflower melicgrass · Poaceae 3 counties
• 
  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
• 
  Menispermum canadense L. Native MECA3

  common moonseed · Menispermaceae 88 counties
• 
  Mentha aquatica L. Introduced MEAQ

  water mint · Lamiaceae 8 counties
• 
  Mentha arvensis L. Native MEAR4

  wild mint · Lamiaceae 70 counties
• 
  Mentha spicata L. Introduced MESP3

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

  gingermint · Lamiaceae 7 counties
• ⚘
  Mentha ×piperita L. (pro sp.) [aquatica × spicata] Native MEPI

  peppermint · Lamiaceae 53 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