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 1–50 of 2,225.

• 
  Abutilon theophrasti Medik. Introduced ABTH

  velvetleaf · Malvaceae 10 counties
• 
  Acalypha gracilens A. Gray Native ACGR2

  slender threeseed mercury · Euphorbiaceae 1 county
• 
  Acalypha ostryifolia Riddell Native ACOS

  pineland threeseed mercury · Euphorbiaceae 2 counties
• 
  Acalypha rhomboidea Raf. Native ACRH

  common threeseed mercury · Euphorbiaceae 14 counties
• 
  Acalypha virginica L. Native ACVI

  Virginia threeseed mercury · Euphorbiaceae 15 counties
• 
  Acer negundo L. Native ACNE2

  boxelder · Aceraceae 24 counties
• 
  Acer negundo L. var. negundo Native ACNEN

  boxelder · Aceraceae 2 counties
• 
  Acer negundo L. var. violaceum (G. Kirchn.) H. Jaeger Native ACNEV

  boxelder · Aceraceae 2 counties
• 
  Acer nigrum Michx. f. Native ACNI5

  black maple · Aceraceae 3 counties
• 
  Acer saccharinum L. Native ACSA2

  silver maple · Aceraceae 23 counties
• 
  Acer saccharum Marshall Native ACSA3

  sugar maple · Aceraceae 4 counties
• 
  Acer saccharum Marshall var. saccharum Native ACSAS

  sugar maple · Aceraceae 4 counties
• 
  Achillea millefolium L. Both ACMI2

  common yarrow · Asteraceae 28 counties
• 
  Achillea millefolium L. var. millefolium Introduced ACMIM2

  common yarrow · Asteraceae 3 counties
• 
  Achillea millefolium L. var. occidentalis DC. Native ACMIO

  western yarrow · Asteraceae 26 counties
• 
  Acorus americanus (Raf.) Raf. Native ACAM

  sweetflag · Acoraceae 2 counties
• 
  Acorus calamus L. Introduced ACCA4

  calamus · Acoraceae 9 counties
• 
  Actaea pachypoda Elliott Native ACPA

  white baneberry · Ranunculaceae 3 counties
• 
  Actaea podocarpa DC. Native ACPO11

  mountain bugbane · Ranunculaceae 1 county
• 
  Actaea racemosa L. Native ACRA7

  black baneberry · Ranunculaceae 1 county
• 
  Actaea racemosa L. var. racemosa Native ACRAR

  black bugbane · Ranunculaceae 1 county
• 
  Actaea rubra (Aiton) Willd. Native ACRU2

  red baneberry · Ranunculaceae 13 counties
• 
  Actaea rubra (Aiton) Willd. ssp. rubra Native ACRUR2

  red baneberry · Ranunculaceae 13 counties
• 
  Adiantum pedatum L. Native ADPE

  northern maidenhair · Pteridaceae 65 counties
• 
  Aegilops cylindrica Host Introduced AECY

  jointed goatgrass · Poaceae 4 counties
• 
  Aesculus glabra Willd. Native AEGL

  Ohio buckeye · Hippocastanaceae 8 counties
• 
  Aesculus glabra Willd. var. arguta (Buckley) B.L. Rob. Native AEGLA

  Ohio buckeye · Hippocastanaceae 1 county
• 
  Aesculus glabra Willd. var. glabra Native AEGLG

  Ohio buckeye · Hippocastanaceae 7 counties
• 
  Aesculus hippocastanum L. Introduced AEHI

  horse chestnut · Hippocastanaceae 1 county
• 
  Agalinis aspera (Douglas ex Benth.) Britton Native AGAS2

  tall false foxglove · Scrophulariaceae 10 counties
• 
  Agalinis auriculata (Michx.) S.F. Blake Native AGAU3

  earleaf false foxglove · Scrophulariaceae 2 counties
• 
  Agalinis gattingeri (Small) Small Native AGGA

  roundstem false foxglove · Scrophulariaceae 2 counties
• 
  Agalinis purpurea (L.) Pennell Native AGPU5

  purple false foxglove · Scrophulariaceae 1 county
• 
  Agalinis skinneriana (Alph. Wood) Britton Native AGSK

  Skinner's false foxglove · Scrophulariaceae 1 county
• 
  Agalinis tenuifolia (Vahl) Raf. Native AGTE3

  slenderleaf false foxglove · Scrophulariaceae 12 counties
• 
  Agalinis tenuifolia (Vahl) Raf. var. parviflora (Nutt.) Pennell Native AGTEP2

  slenderleaf false foxglove · Scrophulariaceae 1 county
• 
  Agalinis tenuifolia (Vahl) Raf. var. tenuifolia Native AGTET

  slenderleaf false foxglove · Scrophulariaceae 3 counties
• 
  Agastache foeniculum (Pursh) Kuntze Native AGFO

  blue giant hyssop · Lamiaceae 2 counties
• 
  Agastache nepetoides (L.) Kuntze Native AGNE2

  yellow giant hyssop · Lamiaceae 9 counties
• 
  Agastache scrophulariifolia (Willd.) Kuntze Native AGSC

  purple giant hyssop · Lamiaceae 8 counties
• 
  Ageratina altissima (L.) R.M. King & H. Rob. Native AGAL5

  white snakeroot · Asteraceae 21 counties
• 
  Ageratina altissima (L.) R.M. King & H. Rob. var. altissima Native AGALA

  white snakeroot · Asteraceae 21 counties
• 
  Agoseris glauca (Pursh) Raf. Native AGGL

  pale agoseris · Asteraceae 1 county
• 
  Agoseris glauca (Pursh) Raf. var. glauca Native AGGLG

  pale agoseris · Asteraceae 1 county
• 
  Agrimonia gryposepala Wallr. Native AGGR2

  tall hairy agrimony · Rosaceae 6 counties
• 
  Agrimonia parviflora Aiton Native AGPA6

  harvestlice · Rosaceae 4 counties
• 
  Agrimonia pubescens Wallr. Native AGPU

  soft agrimony · Rosaceae 13 counties
• 
  Agrimonia rostellata Wallr. Native AGRO3

  beaked agrimony · Rosaceae 1 county
• 
  Agrimonia striata Michx. Native AGST

  roadside agrimony · Rosaceae 4 counties
• 
  Agropyron cristatum (L.) Gaertn. Introduced AGCR

  crested wheatgrass · Poaceae 4 counties