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 2,701–2,750 of 3,277.

• 
  Setaria parviflora (Poir.) Kerguélen Native SEPA10

  marsh bristlegrass · Poaceae 58 counties
• 
  Setaria pumila (Poir.) Roem. & Schult. Introduced SEPU8

  yellow foxtail · Poaceae 2 counties
• 
  Setaria pumila (Poir.) Roem. & Schult. ssp. pallidefusca (Schumach.) B.K. Simon Introduced SEPUP3

  cattail grass · Poaceae 1 county
• 
  Setaria pumila (Poir.) Roem. & Schult. ssp. pumila Introduced SEPUP2

  yellow foxtail · Poaceae 1 county
• 
  Setaria verticillata (L.) P. Beauv. Introduced SEVE3

  hooked bristlegrass · Poaceae 1 county
• 
  Setaria viridis (L.) P. Beauv. Introduced SEVI4

  green bristlegrass · Poaceae 26 counties
• 
  Setaria viridis (L.) P. Beauv. var. viridis Introduced SEVIV

  green bristlegrass · Poaceae 26 counties
• 
  Seymeria cassioides (J.F. Gmel.) S.F. Blake Native SECA4

  yaupon blacksenna · Scrophulariaceae 3 counties
• 
  Sherardia arvensis L. Introduced SHAR2

  blue fieldmadder · Rubiaceae 35 counties
• 
  Sibara virginica (L.) Rollins Native SIVI2

  Virginia winged rockcress · Brassicaceae 42 counties
• 
  Sicyos angulatus L. Native SIAN

  oneseed bur cucumber · Cucurbitaceae 24 counties
• 
  Sida elliottii Torr. & A. Gray Native SIEL

  Elliott's fanpetals · Malvaceae 7 counties
• 
  Sida elliottii Torr. & A. Gray var. elliottii Native SIELE

  Elliott's fanpetals · Malvaceae 7 counties
• 
  Sida rhombifolia L. Native SIRH

  Cuban jute · Malvaceae 23 counties
• 
  Sida spinosa L. Native SISP

  prickly fanpetals · Malvaceae 56 counties
• 
  Sideritis montana L. Introduced SIMO3

  mountain ironwort · Lamiaceae 1 county
• 
  Sideroxylon lanuginosum Michx. Native SILA20

  gum bully · Sapotaceae 59 counties
• 
  Sideroxylon lanuginosum Michx. ssp. lanuginosum Native SILAL3

  gum bully · Sapotaceae 59 counties
• 
  Sideroxylon lanuginosum Michx. ssp. oblongifolium (Nutt.) T.D. Penn. Native SILAO

  gum bully · Sapotaceae 1 county
• 
  Sideroxylon lycioides L. Native SILY

  buckthorn bully · Sapotaceae 12 counties
• 
  Silene antirrhina L. Native SIAN2

  sleepy silene · Caryophyllaceae 24 counties
• 
  Silene armeria L. Introduced SIAR

  sweet William silene · Caryophyllaceae 1 county
• 
  Silene latifolia Poir. Introduced SILA21

  bladder campion · Caryophyllaceae 2 counties
• 
  Silene latifolia Poir. ssp. alba (Mill.) Greuter & Burdet Introduced SILAA3

  bladder campion · Caryophyllaceae 2 counties
• 
  Silene ovata Pursh Native SIOV

  Blue Ridge catchfly · Caryophyllaceae 4 counties
• 
  Silene regia Sims Native SIRE2

  royal catchfly · Caryophyllaceae 7 counties
• 
  Silene stellata (L.) W.T. Aiton Native SIST

  widowsfrill · Caryophyllaceae 42 counties
• 
  Silene virginica L. Native SIVI4

  fire pink · Caryophyllaceae 44 counties
• 
  Silene virginica L. var. virginica Native SIVIV

  fire pink · Caryophyllaceae 44 counties
• 
  Silene vulgaris (Moench) Garcke Introduced SIVU

  maidenstears · Caryophyllaceae 2 counties
• 
  Silphium asteriscus L. Native SIAS2

  starry rosinweed · Asteraceae 1 county
• 
  Silphium asteriscus L. var. asteriscus Native SIASA3

  starry rosinweed · Asteraceae 1 county
• 
  Silphium integrifolium Michx. Native SIIN2

  wholeleaf rosinweed · Asteraceae 40 counties
• 
  Silphium integrifolium Michx. var. integrifolium Native SIINI

  wholeleaf rosinweed · Asteraceae 1 county
• 
  Silphium integrifolium Michx. var. laeve Torr. & A. Gray Native SIINL

  wholeleaf rosinweed · Asteraceae 4 counties
• 
  Silphium laciniatum L. Native SILA3

  compassplant · Asteraceae 35 counties
• 
  Silphium laciniatum L. var. laciniatum Native SILAL2

  compassplant · Asteraceae 18 counties
• 
  Silphium laciniatum L. var. robinsonii L.M. Perry Native SILAR

  Robinson's compassplant · Asteraceae 21 counties
• 
  Silphium perfoliatum L. Native SIPE2

  cup plant · Asteraceae 19 counties
• 
  Silphium perfoliatum L. var. perfoliatum Native SIPEP

  cup plant · Asteraceae 19 counties
• 
  Silphium radula Nutt. Native SIRA2

  roughstem rosinweed · Asteraceae 35 counties
• 
  Silphium terebinthinaceum Jacq. Native SITE

  prairie rosinweed · Asteraceae 13 counties
• 
  Silphium terebinthinaceum Jacq. var. terebinthinaceum Native SITET

  prairie rosinweed · Asteraceae 13 counties
• 
  Silybum marianum (L.) Gaertn. Introduced SIMA3

  blessed milkthistle · Asteraceae 3 counties
• 
  Sinapis alba L. Introduced SIAL5

  white mustard · Brassicaceae 1 county
• 
  Sinapis arvensis L. Introduced SIAR4

  charlock mustard · Brassicaceae 14 counties
• 
  Sinapis arvensis L. ssp. arvensis Introduced SIARA

  wild mustard · Brassicaceae 14 counties
• 
  Sisymbrium altissimum L. Introduced SIAL2

  tall tumblemustard · Brassicaceae 4 counties
• 
  Sisymbrium officinale (L.) Scop. Introduced SIOF

  hedgemustard · Brassicaceae 24 counties
• 
  Sisyrinchium albidum Raf. Native SIAL3

  white blue-eyed grass · Iridaceae 24 counties