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 51–100 of 2,225.

• 
  Agropyron cristatum (L.) Gaertn. ssp. pectinatum (M. Bieb.) Tzvelev Introduced AGCRP8

  crested wheatgrass · Poaceae 4 counties
• 
  Agrostemma githago L. Introduced AGGI

  common corncockle · Caryophyllaceae 3 counties
• 
  Agrostis gigantea Roth Introduced AGGI2

  redtop · Poaceae 5 counties
• 
  Agrostis hyemalis (Walter) Britton, Sterns & Poggenb. Native AGHY

  winter bentgrass · Poaceae 20 counties
• 
  Agrostis perennans (Walter) Tuck. Native AGPE

  upland bentgrass · Poaceae 20 counties
• 
  Agrostis scabra Willd. Native AGSC5

  rough bentgrass · Poaceae 20 counties
• 
  Agrostis stolonifera L. Introduced AGST2

  creeping bentgrass · Poaceae 37 counties
• 
  Ailanthus altissima (Mill.) Swingle Introduced AIAL

  tree of heaven · Simaroubaceae 2 counties
• 
  Alcea rosea L. Introduced ALRO3

  hollyhock · Malvaceae 2 counties
• 
  Alisma subcordatum Raf. Native ALSU

  American water plantain · Alismataceae 16 counties
• 
  Alisma triviale Pursh Native ALTR7

  northern water plantain · Alismataceae 7 counties
• 
  Alliaria petiolata (M. Bieb.) Cavara & Grande Introduced ALPE4

  garlic mustard · Brassicaceae 2 counties
• 
  Allium canadense L. Native ALCA3

  meadow garlic · Liliaceae 30 counties
• 
  Allium canadense L. var. canadense Native ALCAC

  meadow garlic · Liliaceae 27 counties
• 
  Allium canadense L. var. lavandulare (Bates) Ownbey & Aase Native ALCAL

  meadow garlic · Liliaceae 1 county
• 
  Allium cernuum Roth Native ALCE2

  nodding onion · Liliaceae 1 county
• 
  Allium cernuum Roth var. cernuum Native ALCEC2

  nodding onion · Liliaceae 1 county
• 
  Allium perdulce S.V. Fraser Native ALPE2

  plains onion · Liliaceae 1 county
• 
  Allium perdulce S.V. Fraser var. perdulce Native ALPEP

  plains onion · Liliaceae 1 county
• 
  Allium porrum L. Introduced ALPO2

  garden leek · Liliaceae 1 county
• 
  Allium stellatum Fraser ex Ker Gawl. Native ALST

  autumn onion · Liliaceae 6 counties
• 
  Allium tricoccum Aiton Native ALTR3

  ramp · Liliaceae 9 counties
• 
  Allium vineale L. Introduced ALVI

  wild garlic · Liliaceae 2 counties
• 
  Allium vineale L. ssp. vineale Introduced ALVIV

  wild garlic · Liliaceae 2 counties
• 
  Alopecurus aequalis Sobol. Native ALAE

  shortawn foxtail · Poaceae 9 counties
• 
  Alopecurus aequalis Sobol. var. aequalis Native ALAEA

  shortawn foxtail · Poaceae 9 counties
• 
  Alopecurus carolinianus Walter Native ALCA4

  Carolina foxtail · Poaceae 15 counties
• 
  Althaea officinalis L. Introduced ALOF2

  common marshmallow · Malvaceae 1 county
• 
  Amaranthus albus L. Introduced AMAL

  prostrate pigweed · Amaranthaceae 5 counties
• 
  Amaranthus arenicola I.M. Johnst. Native AMAR

  sandhill amaranth · Amaranthaceae 2 counties
• 
  Amaranthus blitoides S. Watson Introduced AMBL

  mat amaranth · Amaranthaceae 13 counties
• 
  Amaranthus hybridus L. Native AMHY

  slim amaranth · Amaranthaceae 6 counties
• 
  Amaranthus retroflexus L. Native AMRE

  redroot amaranth · Amaranthaceae 22 counties
• 
  Amaranthus tuberculatus (Moq.) Sauer Native AMTU

  roughfruit amaranth · Amaranthaceae 39 counties
• 
  Ambrosia artemisiifolia L. Both AMAR2

  annual ragweed · Asteraceae 19 counties
• 
  Ambrosia artemisiifolia L. var. elatior (L.) Descourtils Introduced AMARE

  annual ragweed · Asteraceae 17 counties
• 
  Ambrosia bidentata Michx. Native AMBI2

  lanceleaf ragweed · Asteraceae 1 county
• 
  Ambrosia psilostachya DC. Native AMPS

  Cuman ragweed · Asteraceae 12 counties
• 
  Ambrosia trifida L. Native AMTR

  great ragweed · Asteraceae 21 counties
• 
  Ambrosia trifida L. var. trifida Native AMTRT2

  great ragweed · Asteraceae 19 counties
• 
  Amelanchier alnifolia (Nutt.) Nutt. ex M. Roem. Native AMAL2

  Saskatoon serviceberry · Rosaceae 1 county
• 
  Amelanchier alnifolia (Nutt.) Nutt. ex M. Roem. var. alnifolia Native AMALA

  Saskatoon serviceberry · Rosaceae 1 county
• 
  Amelanchier arborea (Michx. f.) Fernald Native AMAR3

  common serviceberry · Rosaceae 9 counties
• 
  Amelanchier arborea (Michx. f.) Fernald var. arborea Native AMARA4

  common serviceberry · Rosaceae 9 counties
• 
  Amelanchier humilis Wiegand Native AMHU2

  low serviceberry · Rosaceae 2 counties
• 
  Amelanchier sanguinea (Pursh) DC. Native AMSA

  roundleaf serviceberry · Rosaceae 3 counties
• 
  Amelanchier sanguinea (Pursh) DC. var. sanguinea Native AMSAS

  roundleaf serviceberry · Rosaceae 3 counties
• 
  Ammannia coccinea Rottb. Native AMCO

  valley redstem · Lythraceae 12 counties
• 
  Ammannia robusta Heer & Regel Native AMRO3

  grand redstem · Lythraceae 1 county
• 
  Amorpha canescens Pursh Native AMCA6

  leadplant · Fabaceae 32 counties