Iowa

• Adair 19001
  393 taxa Open ↗
• Adams 19003
  200 taxa Open ↗
• Allamakee 19005
  118 taxa Open ↗
• Appanoose 19007
  38 taxa Open ↗
• Audubon 19009
  225 taxa Open ↗
• Benton 19011
  21 taxa Open ↗
• Black Hawk 19013
  33 taxa Open ↗
• Boone 19015
  146 taxa Open ↗
• Bremer 19017
  24 taxa Open ↗
• Buchanan 19019
  16 taxa Open ↗

Showing 1,251–1,300 of 2,225.

• 
  Lythrum salicaria L. Introduced LYSA2

  purple loosestrife · Lythraceae 4 counties
• 
  Machaeranthera pinnatifida (Hook.) Shinners Native MAPI

  lacy tansyaster · Asteraceae 10 counties
• 
  Machaeranthera pinnatifida (Hook.) Shinners ssp. pinnatifida Native MAPIP

  lacy tansyaster · Asteraceae 10 counties
• 
  Machaeranthera pinnatifida (Hook.) Shinners ssp. pinnatifida var. pinnatifida Native MAPIP4

  lacy tansyaster · Asteraceae 10 counties
• 
  Maclura pomifera (Raf.) C.K. Schneid. Native MAPO

  Osage-orange · Moraceae 8 counties
• 
  Maianthemum canadense Desf. Native MACA4

  Canada mayflower · Liliaceae 1 county
• 
  Maianthemum racemosum (L.) Link Native MARA7

  feathery false lily of the valley · Liliaceae 14 counties
• 
  Maianthemum racemosum (L.) Link ssp. racemosum Native MARAR

  feathery false lily of the valley · Liliaceae 14 counties
• 
  Maianthemum stellatum (L.) Link Native MAST4

  starry false lily of the valley · Liliaceae 16 counties
• 
  Malaxis unifolia Michx. Native MAUN

  green adder's-mouth orchid · Orchidaceae 1 county
• 
  Malus ioensis (Alph. Wood) Britton Native MAIO

  prairie crab apple · Rosaceae 16 counties
• 
  Malus ioensis (Alph. Wood) Britton var. ioensis Native MAIOI

  prairie crab apple · Rosaceae 16 counties
• 
  Malus pumila Mill. Introduced MAPU

  paradise apple · Rosaceae 1 county
• 
  Malva neglecta Wallr. Introduced MANE

  common mallow · Malvaceae 12 counties
• 
  Malva parviflora L. Introduced MAPA5

  cheeseweed mallow · Malvaceae 1 county
• 
  Malva pusilla Sm. Introduced MAPU5

  low mallow · Malvaceae 3 counties
• 
  Malva sylvestris L. Introduced MASY

  high mallow · Malvaceae 2 counties
• 
  Malva verticillata L. Introduced MAVE

  cluster mallow · Malvaceae 1 county
• 
  Marrubium vulgare L. Introduced MAVU

  horehound · Lamiaceae 4 counties
• 
  Marsilea vestita Hook. & Grev. Native MAVE2

  hairy waterclover · Marsileaceae 1 county
• 
  Matricaria discoidea DC. Introduced MADI6

  disc mayweed · Asteraceae 8 counties
• 
  Matricaria recutita L. Introduced MARE6

  German chamomile · Asteraceae 1 county
• 
  Matteuccia struthiopteris (L.) Todaro Native MAST

  ostrich fern · Dryopteridaceae 37 counties
• 
  Medicago lupulina L. Introduced MELU

  black medick · Fabaceae 19 counties
• 
  Medicago sativa L. Introduced MESA

  alfalfa · Fabaceae 20 counties
• 
  Medicago sativa L. ssp. falcata (L.) Arcang. Introduced MESAF

  yellow alfalfa · Fabaceae 3 counties
• 
  Medicago sativa L. ssp. sativa Introduced MESAS

  alfalfa · Fabaceae 2 counties
• 
  Melica mutica Walter Native MEMU

  twoflower melicgrass · Poaceae 1 county
• 
  Melica nitens (Scribn.) Nutt. ex Piper Native MENI

  threeflower melicgrass · Poaceae 20 counties
• 
  Melilotus officinalis (L.) Lam. Introduced MEOF

  sweetclover · Fabaceae 20 counties
• 
  Menispermum canadense L. Native MECA3

  common moonseed · Menispermaceae 22 counties
• 
  Mentha arvensis L. Native MEAR4

  wild mint · Lamiaceae 26 counties
• 
  Mentha spicata L. Introduced MESP3

  spearmint · Lamiaceae 2 counties
• 
  Mentha suaveolens Ehrh. Introduced MESU5

  apple mint · Lamiaceae 1 county
• ⚘
  Mentha ×gracilis Sole (pro sp.) [arvensis × spicata] Introduced MEGR2

  gingermint · Lamiaceae 1 county
• ⚘
  Mentha ×piperita L. (pro sp.) [aquatica × spicata] Native MEPI

  peppermint · Lamiaceae 1 county
• ⚘
  Mentha ×rotundifolia (L.) Huds. (pro sp.) [longifolia × suaveolens] Introduced MERO2

  Lamiaceae 1 county
• 
  Mentzelia decapetala (Pursh ex Sims) Urb. & Gilg ex Gilg Native MEDE2

  tenpetal blazingstar · Loasaceae 4 counties
• 
  Mertensia virginica (L.) Pers. ex Link Native MEVI3

  Virginia bluebells · Boraginaceae 2 counties
• 
  Milium effusum L. Native MIEF

  American milletgrass · Poaceae 1 county
• 
  Milium effusum L. var. cisatlanticum Fernald Native MIEFC

  American milletgrass · Poaceae 1 county
• 
  Mimosa nuttallii (DC. ex Britton & Rose) B.L. Turner Native MINU6

  Nuttall's sensitive-briar · Fabaceae 2 counties
• 
  Mimulus alatus Aiton Native MIAL2

  sharpwing monkeyflower · Scrophulariaceae 3 counties
• 
  Mimulus glabratus Kunth Native MIGL

  roundleaf monkeyflower · Scrophulariaceae 1 county
• 
  Mimulus glabratus Kunth var. jamesii (Torr. & A. Gray ex Benth.) A. Gray Native MIGLJ

  James' monkeyflower · Scrophulariaceae 1 county
• 
  Mimulus ringens L. Native MIRI

  Allegheny monkeyflower · Scrophulariaceae 18 counties
• 
  Mimulus ringens L. var. ringens Native MIRIR

  Allegheny monkeyflower · Scrophulariaceae 18 counties
• 
  Minuartia michauxii (Fenzl) Farw. Native MIMI2

  Michaux's stitchwort · Caryophyllaceae 1 county
• 
  Minuartia michauxii (Fenzl) Farw. var. michauxii Native MIMIM

  Michaux's stitchwort · Caryophyllaceae 1 county
• 
  Mirabilis albida (Walter) Heimerl Native MIAL4

  white four o'clock · Nyctaginaceae 3 counties