Illinois

• Adams 17001
  1,183 taxa Open ↗
• Alexander 17003
  1,220 taxa Open ↗
• Bond 17005
  682 taxa Open ↗
• Boone 17007
  1,163 taxa Open ↗
• Brown 17009
  836 taxa Open ↗
• Bureau 17011
  652 taxa Open ↗
• Calhoun 17013
  1,017 taxa Open ↗
• Carroll 17015
  931 taxa Open ↗
• Cass 17017
  1,389 taxa Open ↗
• Champaign 17019
  1,420 taxa Open ↗

Showing 251–300 of 2,969 (native).

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  Asplenium ×trudellii Wherry (pro sp.) [montanum × pinnatifidum] Native ASTR11

  spleenwort · Aspleniaceae 1 county
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  Astragalus agrestis Douglas ex G. Don Native ASAG2

  purple milkvetch · Fabaceae 1 county
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  Astragalus canadensis L. Native ASCA11

  Canadian milkvetch · Fabaceae 59 counties
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  Astragalus canadensis L. var. canadensis Native ASCAC6

  Canadian milkvetch · Fabaceae 59 counties
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  Astragalus crassicarpus Nutt. Native ASCR2

  groundplum milkvetch · Fabaceae 4 counties
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  Astragalus crassicarpus Nutt. var. trichocalyx (Nutt.) Barneby Native ASCRT

  groundplum milkvetch · Fabaceae 4 counties
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  Astragalus distortus Torr. & A. Gray Native ASDI4

  Ozark milkvetch · Fabaceae 8 counties
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  Astragalus distortus Torr. & A. Gray var. distortus Native ASDID3

  Ozark milkvetch · Fabaceae 8 counties
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  Astragalus tennesseensis A. Gray ex Chapm. Native ASTE7

  Tennessee milkvetch · Fabaceae 8 counties
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  Athyrium filix-femina (L.) Roth Native ATFI

  common ladyfern · Dryopteridaceae 73 counties
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  Athyrium filix-femina (L.) Roth ssp. angustum (Willd.) R.T. Clausen Native ATFIA

  subarctic ladyfern · Dryopteridaceae 73 counties
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  Athyrium filix-femina (L.) Roth ssp. asplenioides (Michx.) Hultén Native ATFIA2

  asplenium ladyfern · Dryopteridaceae 8 counties
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  Atriplex argentea Nutt. Native ATAR2

  silverscale saltbush · Chenopodiaceae 3 counties
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  Atriplex argentea Nutt. ssp. argentea Native ATARA

  silverscale saltbush · Chenopodiaceae 3 counties
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  Atriplex argentea Nutt. ssp. argentea var. argentea Native ATARA2

  silverscale saltbush · Chenopodiaceae 3 counties
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  Atriplex glabriuscula Edmondston Native ATGL

  Scotland orache · Chenopodiaceae 1 county
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  Atriplex prostrata Bouchér ex DC. Native ATPR

  triangle orache · Chenopodiaceae 2 counties
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  Aureolaria flava (L.) Farw. Native AUFL

  smooth yellow false foxglove · Scrophulariaceae 40 counties
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  Aureolaria flava (L.) Farw. var. flava Native AUFLF

  smooth yellow false foxglove · Scrophulariaceae 37 counties
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  Aureolaria flava (L.) Farw. var. macrantha Pennell Native AUFLM

  smooth yellow false foxglove · Scrophulariaceae 2 counties
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  Aureolaria grandiflora (Benth.) Pennell Native AUGR

  largeflower yellow false foxglove · Scrophulariaceae 57 counties
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  Aureolaria grandiflora (Benth.) Pennell var. pulchra Pennell Native AUGRP

  largeflower yellow false foxglove · Scrophulariaceae 57 counties
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  Aureolaria pedicularia (L.) Raf. Native AUPE2

  fernleaf yellow false foxglove · Scrophulariaceae 8 counties
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  Aureolaria pedicularia (L.) Raf. var. ambigens (Fernald) Farw. Native AUPEA

  fernleaf yellow false foxglove · Scrophulariaceae 8 counties
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  Azolla caroliniana Willd. Native AZCA

  Carolina mosquitofern · Azollaceae 3 counties
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  Azolla microphylla Kaulf. Native AZMI

  Mexican Mosquito Fern · Azollaceae 37 counties
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  Bacopa rotundifolia (Michx.) Wettst. Native BARO

  disk waterhyssop · Scrophulariaceae 43 counties
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  Baptisia alba (L.) Vent. Native BAAL

  white wild indigo · Fabaceae 96 counties
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  Baptisia alba (L.) Vent. var. macrophylla (Larisey) Isely Native BAALM

  largeleaf wild indigo · Fabaceae 96 counties
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  Baptisia australis (L.) R. Br. Native BAAU

  blue wild indigo · Fabaceae 4 counties
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  Baptisia australis (L.) R. Br. var. australis Native BAAUA

  blue wild indigo · Fabaceae 1 county
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  Baptisia australis (L.) R. Br. var. minor (Lehm.) Fernald Native BAAUM

  blue wild indigo · Fabaceae 2 counties
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  Baptisia bracteata Muhl. ex Elliott Native BABR2

  longbract wild indigo · Fabaceae 58 counties
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  Baptisia bracteata Muhl. ex Elliott var. leucophaea (Nutt.) Kartesz & Gandhi Native BABRL2

  longbract wild indigo · Fabaceae 58 counties
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  Baptisia tinctoria (L.) R. Br. Native BATI

  horseflyweed · Fabaceae 2 counties
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  Bartonia paniculata (Michx.) Muhl. Native BAPA2

  twining screwstem · Gentianaceae 2 counties
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  Bartonia paniculata (Michx.) Muhl. ssp. paniculata Native BAPAP

  twining screwstem · Gentianaceae 2 counties
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  Bartonia virginica (L.) Britton, Sterns & Poggenb. Native BAVI3

  yellow screwstem · Gentianaceae 11 counties
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  Beckmannia syzigachne (Steud.) Fernald Native BESY

  American sloughgrass · Poaceae 3 counties
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  Berberis canadensis Mill. Native BECA2

  American barberry · Berberidaceae 2 counties
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  Berchemia scandens (Hill) K. Koch Native BESC

  Alabama supplejack · Rhamnaceae 1 county
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  Bergia texana (Hook.) Seub. ex Walp. Native BETE

  Texas bergia · Elatinaceae 1 county
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  Berula erecta (Huds.) Coville Native BEER

  cutleaf waterparsnip · Apiaceae 8 counties
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  Besseya bullii (Eaton) Rydb. Native BEBU

  Bull's coraldrops · Scrophulariaceae 14 counties
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  Betula alleghaniensis Britton Native BEAL2

  yellow birch · Betulaceae 6 counties
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  Betula alleghaniensis Britton var. alleghaniensis Native BEALA

  yellow birch · Betulaceae 6 counties
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  Betula alleghaniensis Britton var. macrolepis (Fernald) Brayshaw Native BEALM

  yellow birch · Betulaceae 1 county
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  Betula nigra L. Native BENI

  river birch · Betulaceae 65 counties
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  Betula papyrifera Marshall Native BEPA

  paper birch · Betulaceae 6 counties
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  Betula papyrifera Marshall var. papyrifera Native BEPAP

  paper birch · Betulaceae 6 counties