Arkansas

• Arkansas 05001
  816 taxa Open ↗
• Ashley 05003
  1,236 taxa Open ↗
• Baxter 05005
  1,025 taxa Open ↗
• Benton 05007
  1,372 taxa Open ↗
• Boone 05009
  697 taxa Open ↗
• Bradley 05011
  1,145 taxa Open ↗
• Calhoun 05013
  573 taxa Open ↗
• Carroll 05015
  1,039 taxa Open ↗
• Chicot 05017
  440 taxa Open ↗
• Clark 05019
  896 taxa Open ↗

Showing 51–100 of 562 (introduced).

• 
  Arrhenatherum elatius (L.) P. Beauv. ex J. Presl & C. Presl var. elatius Introduced ARELE

  tall oatgrass · Poaceae 4 counties
• 
  Artemisia annua L. Introduced ARAN3

  sweet sagewort · Asteraceae 14 counties
• 
  Arthraxon hispidus (Thunb.) Makino Introduced ARHI3

  small carpetgrass · Poaceae 12 counties
• 
  Arundo donax L. Introduced ARDO4

  giant reed · Poaceae 9 counties
• 
  Asparagus officinalis L. Introduced ASOF

  garden asparagus · Liliaceae 29 counties
• 
  Avena sativa L. Introduced AVSA

  common oat · Poaceae 20 counties
• 
  Bacopa egensis (Poepp.) Pennell Introduced BAEG

  Brazilian waterhyssop · Scrophulariaceae 2 counties
• 
  Barbarea verna (Mill.) Asch. Introduced BAVE

  early yellowrocket · Brassicaceae 7 counties
• 
  Barbarea vulgaris W.T. Aiton Introduced BAVU

  garden yellowrocket · Brassicaceae 29 counties
• 
  Belamcanda chinensis (L.) DC. Introduced BECH

  blackberry lily · Iridaceae 23 counties
• 
  Berteroa incana (L.) DC. Introduced BEIN2

  hoary alyssum · Brassicaceae 3 counties
• 
  Bothriochloa ischaemum (L.) Keng Introduced BOIS

  yellow bluestem · Poaceae 3 counties
• 
  Bothriochloa ischaemum (L.) Keng var. songarica (Rupr. ex Fisch. & C.A. Mey.) Celarier & Harlan Introduced BOISS

  yellow bluestem · Poaceae 2 counties
• 
  Bothriochloa pertusa (L.) A. Camus Introduced BOPE2

  pitted beardgrass · Poaceae 1 county
• 
  Brassica juncea (L.) Czern. Introduced BRJU

  brown mustard · Brassicaceae 7 counties
• 
  Brassica napus L. Introduced BRNA

  rape · Brassicaceae 2 counties
• 
  Brassica napus L. var. napus Introduced BRNAN2

  rape · Brassicaceae 1 county
• 
  Brassica nigra (L.) W.D.J. Koch Introduced BRNI

  black mustard · Brassicaceae 1 county
• 
  Brassica rapa L. Introduced BRRA

  field mustard · Brassicaceae 28 counties
• 
  Brassica rapa L. var. rapa Introduced BRRAR

  field mustard · Brassicaceae 28 counties
• 
  Briza minor L. Introduced BRMI2

  little quakinggrass · Poaceae 18 counties
• 
  Bromus arvensis L. Introduced BRAR5

  field brome · Poaceae 39 counties
• 
  Bromus catharticus Vahl Introduced BRCA6

  rescuegrass · Poaceae 17 counties
• 
  Bromus diandrus Roth Introduced BRDI3

  ripgut brome · Poaceae 2 counties
• 
  Bromus diandrus Roth ssp. rigidus (Roth) Lainz Introduced BRDIR

  ripgut brome · Poaceae 2 counties
• 
  Bromus hordeaceus L. Introduced BRHO2

  soft brome · Poaceae 2 counties
• 
  Bromus hordeaceus L. ssp. hordeaceus Introduced BRHOH

  soft brome · Poaceae 2 counties
• 
  Bromus inermis Leyss. ssp. inermis Introduced BRINI

  smooth brome · Poaceae 8 counties
• 
  Bromus inermis Leyss. ssp. inermis var. inermis Introduced BRINI2

  smooth brome · Poaceae 8 counties
• 
  Bromus racemosus L. Introduced BRRA2

  bald brome · Poaceae 9 counties
• 
  Bromus secalinus L. Introduced BRSE

  rye brome · Poaceae 47 counties
• 
  Bromus secalinus L. var. secalinus Introduced BRSES

  rye brome · Poaceae 47 counties
• 
  Bromus squarrosus L. Introduced BRSQ2

  corn brome · Poaceae 2 counties
• 
  Bromus sterilis L. Introduced BRST2

  poverty brome · Poaceae 5 counties
• 
  Bromus tectorum L. Introduced BRTE

  cheatgrass · Poaceae 30 counties
• 
  Broussonetia papyrifera (L.) L'Hér. ex Vent. Introduced BRPA4

  paper mulberry · Moraceae 39 counties
• 
  Buddleja lindleyana Fortune Introduced BULI

  Lindley's butterflybush · Buddlejaceae 1 county
• 
  Buglossoides arvensis (L.) I.M. Johnst. Introduced BUAR3

  corn gromwell · Boraginaceae 27 counties
• 
  Bupleurum rotundifolium L. Introduced BURO

  hare's ear · Apiaceae 2 counties
• 
  Calamintha nepeta (L.) Savi Introduced CANE17

  lesser calamint · Lamiaceae 3 counties
• 
  Calamintha nepeta (L.) Savi ssp. nepeta Introduced CANEN

  lesser calamint · Lamiaceae 3 counties
• 
  Calyptocarpus vialis Less. Introduced CAVI2

  straggler daisy · Asteraceae 1 county
• 
  Camelina microcarpa Andrz. ex DC. Introduced CAMI2

  littlepod false flax · Brassicaceae 8 counties
• 
  Canavalia ensiformis (L.) DC. Introduced CAEN4

  jack bean · Fabaceae 1 county
• ⚘
  Canna ×generalis L.H. Bailey (pro sp.) [glauca × indica] Introduced CAGE3

  canna lily · Cannaceae 1 county
• 
  Cannabis sativa L. Introduced CASA3

  marijuana · Cannabaceae 3 counties
• 
  Cannabis sativa L. ssp. sativa Introduced CASAS3

  marijuana · Cannabaceae 2 counties
• 
  Cannabis sativa L. ssp. sativa var. sativa Introduced CASAS9

  marijuana · Cannabaceae 2 counties
• 
  Caperonia castaneifolia (L.) A. St.-Hil. Introduced CACA41

  chestnutleaf false croton · Euphorbiaceae 1 county
• 
  Caperonia palustris (L.) A. St.-Hil. Introduced CAPA11

  sacatrapo · Euphorbiaceae 4 counties