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 1,501–1,550 of 2,969 (native).

• 
  Juniperus virginiana L. var. virginiana Native JUVIV

  eastern redcedar · Cupressaceae 99 counties
• 
  Justicia americana (L.) Vahl Native JUAM

  American water-willow · Acanthaceae 52 counties
• 
  Justicia lanceolata (Chapm.) Small Native JULA3

  looseflower water-willow · Acanthaceae 2 counties
• 
  Kallstroemia parviflora J.B.S. Norton Native KAPA

  warty caltrop · Zygophyllaceae 3 counties
• 
  Koeleria macrantha (Ledeb.) Schult. Native KOMA

  prairie Junegrass · Poaceae 59 counties
• 
  Krigia biflora (Walter) S.F. Blake Native KRBI

  twoflower dwarfdandelion · Asteraceae 78 counties
• 
  Krigia biflora (Walter) S.F. Blake var. biflora Native KRBIB

  twoflower dwarfdandelion · Asteraceae 78 counties
• 
  Krigia caespitosa (Raf.) K.L. Chambers Native KRCA

  weedy dwarfdandelion · Asteraceae 20 counties
• 
  Krigia dandelion (L.) Nutt. Native KRDA

  potato dwarfdandelion · Asteraceae 30 counties
• 
  Krigia virginica (L.) Willd. Native KRVI

  Virginia dwarfdandelion · Asteraceae 29 counties
• 
  Kyllinga pumila Michx. Native KYPU

  low spikesedge · Cyperaceae 16 counties
• 
  Lactuca biennis (Moench) Fernald Native LABI

  tall blue lettuce · Asteraceae 20 counties
• 
  Lactuca canadensis L. Native LACA

  Canada lettuce · Asteraceae 97 counties
• 
  Lactuca floridana (L.) Gaertn. Native LAFL

  woodland lettuce · Asteraceae 95 counties
• 
  Lactuca floridana (L.) Gaertn. var. floridana Native LAFLF

  woodland lettuce · Asteraceae 1 county
• 
  Lactuca floridana (L.) Gaertn. var. villosa (Jacq.) Cronquist Native LAFLV

  woodland lettuce · Asteraceae 3 counties
• 
  Lactuca graminifolia Michx. Native LAGR

  grassleaf lettuce · Asteraceae 1 county
• 
  Lactuca graminifolia Michx. var. graminifolia Native LAGRG

  grassleaf lettuce · Asteraceae 1 county
• 
  Lactuca hirsuta Muhl. ex Nutt. Native LAHI

  hairy lettuce · Asteraceae 3 counties
• 
  Lactuca hirsuta Muhl. ex Nutt. var. hirsuta Native LAHIH3

  hairy lettuce · Asteraceae 1 county
• 
  Lactuca hirsuta Muhl. ex Nutt. var. sanguinea (Bigelow) Fernald Native LAHIS2

  hairy lettuce · Asteraceae 2 counties
• 
  Lactuca ludoviciana (Nutt.) Riddell Native LALU

  biannual lettuce · Asteraceae 16 counties
• 
  Lactuca tatarica (L.) C.A. Mey. Native LATA

  blue lettuce · Asteraceae 6 counties
• 
  Lactuca tatarica (L.) C.A. Mey. var. pulchella (Pursh) Breitung Native LATAP

  blue lettuce · Asteraceae 6 counties
• 
  Landoltia punctata (G. Mey.) D.H. Les & D.J. Crawford Native LAPU12

  dotted duckmeat · Lemnaceae 4 counties
• 
  Laportea canadensis (L.) Weddell Native LACA3

  Canadian woodnettle · Urticaceae 78 counties
• 
  Lappula occidentalis (S. Watson) Greene Native LAOC3

  flatspine stickseed · Boraginaceae 5 counties
• 
  Lappula occidentalis (S. Watson) Greene var. occidentalis Native LAOCO

  flatspine stickseed · Boraginaceae 5 counties
• 
  Larix laricina (Du Roi) K. Koch Native LALA

  tamarack · Pinaceae 3 counties
• 
  Lathyrus japonicus Willd. Native LAJA

  beach pea · Fabaceae 3 counties
• 
  Lathyrus japonicus Willd. var. maritimus (L.) Kartesz & Gandhi Native LAJAM

  beach pea · Fabaceae 3 counties
• 
  Lathyrus ochroleucus Hook. Native LAOC2

  cream pea · Fabaceae 10 counties
• 
  Lathyrus palustris L. Native LAPA4

  marsh pea · Fabaceae 40 counties
• 
  Lathyrus venosus Muhl. ex Willd. Native LAVE

  veiny pea · Fabaceae 14 counties
• 
  Leavenworthia uniflora (Michx.) Britton Native LEUN

  Michaux's gladecress · Brassicaceae 1 county
• 
  Lechea intermedia Leggett ex Britton Native LEIN

  largepod pinweed · Cistaceae 5 counties
• 
  Lechea intermedia Leggett ex Britton var. intermedia Native LEINI2

  largepod pinweed · Cistaceae 5 counties
• 
  Lechea minor L. Native LEMI

  thymeleaf pinweed · Cistaceae 16 counties
• 
  Lechea mucronata Raf. Native LEMU3

  hairy pinweed · Cistaceae 33 counties
• 
  Lechea pulchella Raf. Native LEPU4

  Leggett's pinweed · Cistaceae 9 counties
• 
  Lechea pulchella Raf. var. moniliformis (E.P. Bicknell) Seymour Native LEPUM

  Leggett's pinweed · Cistaceae 9 counties
• 
  Lechea stricta Leggett ex Britton Native LEST

  prairie pinweed · Cistaceae 15 counties
• 
  Lechea tenuifolia Michx. Native LETE

  narrowleaf pinweed · Cistaceae 65 counties
• 
  Leersia lenticularis Michx. Native LELE2

  catchfly grass · Poaceae 47 counties
• 
  Leersia oryzoides (L.) Sw. Native LEOR

  rice cutgrass · Poaceae 92 counties
• 
  Leersia virginica Willd. Native LEVI2

  whitegrass · Poaceae 85 counties
• 
  Lemna aequinoctialis Welw. Native LEAE2

  lesser duckweed · Lemnaceae 7 counties
• 
  Lemna gibba L. Native LEGI

  swollen duckweed · Lemnaceae 3 counties
• 
  Lemna minor L. Native LEMI3

  common duckweed · Lemnaceae 82 counties
• 
  Lemna minuta Kunth Native LEMI6

  least duckweed · Lemnaceae 3 counties