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 2,351–2,400 of 2,679 (native).

• 
  Sporobolus neglectus Nash Native SPNE2

  puffsheath dropseed · Poaceae 4 counties
• 
  Sporobolus pyramidatus (Lam.) Hitchc. Native SPPY2

  Madagascar dropseed · Poaceae 1 county
• 
  Sporobolus vaginiflorus (Torr. ex A. Gray) Alph. Wood Native SPVA

  poverty dropseed · Poaceae 27 counties
• 
  Sporobolus vaginiflorus (Torr. ex A. Gray) Alph. Wood var. vaginiflorus Native SPVAV2

  poverty dropseed · Poaceae 27 counties
• 
  Stachys crenata Raf. Native STCR7

  mousesear · Lamiaceae 1 county
• 
  Stachys eplingii J.B. Nelson Native STEP

  Epling's hedgenettle · Lamiaceae 5 counties
• 
  Stachys floridana Shuttlw. ex Benth. Native STFL4

  Florida hedgenettle · Lamiaceae 4 counties
• 
  Stachys tenuifolia Willd. Native STTE

  smooth hedgenettle · Lamiaceae 29 counties
• 
  Staphylea trifolia L. Native STTR

  American bladdernut · Staphyleaceae 45 counties
• 
  Steinchisma hians (Elliott) Nash Native STHI3

  gaping grass · Poaceae 33 counties
• 
  Stenanthium gramineum (Ker Gawl.) Morong Native STGR2

  eastern featherbells · Liliaceae 7 counties
• 
  Stenanthium gramineum (Ker Gawl.) Morong var. gramineum Native STGRG2

  eastern featherbells · Liliaceae 5 counties
• 
  Stenanthium gramineum (Ker Gawl.) Morong var. robustum (S. Watson) Fernald Native STGRR

  eastern featherbells · Liliaceae 2 counties
• 
  Stenaria nigricans (Lam.) Terrell Native STNI6

  diamond-flowers · Rubiaceae 31 counties
• 
  Stenaria nigricans (Lam.) Terrell var. nigricans Native STNIN

  diamondflowers · Rubiaceae 31 counties
• 
  Stenosiphon linifolius (Nutt. ex James) Heynh. Native STLI2

  false gaura · Onagraceae 3 counties
• 
  Stenotaphrum secundatum (Walter) Kuntze Native STSE

  St. Augustine grass · Poaceae 1 county
• 
  Stewartia malacodendron L. Native STMA

  silky camellia · Theaceae 1 county
• 
  Stillingia sylvatica L. Native STSY

  queen's-delight · Euphorbiaceae 8 counties
• 
  Stillingia sylvatica L. ssp. sylvatica Native STSYS2

  queen's-delight · Euphorbiaceae 8 counties
• 
  Stokesia laevis (Hill) Greene Native STLA6

  Stokes' aster · Asteraceae 1 county
• 
  Streptanthus hyacinthoides Hook. Native STHY

  smooth jewelflower · Brassicaceae 3 counties
• 
  Streptanthus maculatus Nutt. Native STMA2

  clasping jewelflower · Brassicaceae 8 counties
• 
  Streptanthus maculatus Nutt. ssp. obtusifolius (Hook.) Rollins Native STMAO

  clasping jewelflower · Brassicaceae 8 counties
• 
  Streptanthus squamiformis Goodman Native STSQ

  pineoak jewelflower · Brassicaceae 3 counties
• 
  Strophostyles helvola (L.) Elliott Native STHE9

  amberique-bean · Fabaceae 38 counties
• 
  Strophostyles leiosperma (Torr. & A. Gray) Piper Native STLE6

  slickseed fuzzybean · Fabaceae 16 counties
• 
  Strophostyles umbellata (Muhl. ex Willd.) Britton Native STUM2

  pink fuzzybean · Fabaceae 40 counties
• 
  Stylisma aquatica (Walter) Raf. Native STAQ3

  water dawnflower · Convolvulaceae 3 counties
• 
  Stylisma humistrata (Walter) Chapm. Native STHU2

  southern dawnflower · Convolvulaceae 9 counties
• 
  Stylisma pickeringii (Torr. ex M.A. Curtis) A. Gray Native STPI3

  Pickering's dawnflower · Convolvulaceae 2 counties
• 
  Stylisma pickeringii (Torr. ex M.A. Curtis) A. Gray var. pattersonii (Fernald & B.G. Schub.) Myint Native STPIP2

  Patterson's dawnflower · Convolvulaceae 2 counties
• 
  Stylophorum diphyllum (Michx.) Nutt. Native STDI3

  celandine poppy · Papaveraceae 5 counties
• 
  Stylosanthes biflora (L.) Britton, Sterns & Poggenb. Native STBI2

  sidebeak pencilflower · Fabaceae 57 counties
• 
  Styphnolobium affine (Torr. & A. Gray) Walp. Native STAF4

  Eve's necklacepod · Fabaceae 4 counties
• 
  Styrax americanus Lam. Native STAM4

  American snowbell · Styracaceae 45 counties
• 
  Styrax grandifolius Aiton Native STGR4

  bigleaf snowbell · Styracaceae 29 counties
• 
  Symphoricarpos orbiculatus Moench Native SYOR

  coralberry · Caprifoliaceae 48 counties
• 
  Symphyotrichum anomalum (Engelm.) G.L. Nesom Native SYAN2

  manyray aster · Asteraceae 31 counties
• 
  Symphyotrichum cordifolium (L.) G.L. Nesom Native SYCO4

  common blue wood aster · Asteraceae 51 counties
• 
  Symphyotrichum divaricatum (Nutt.) G.L. Nesom Native SYDI2

  southern annual saltmarsh aster · Asteraceae 35 counties
• 
  Symphyotrichum drummondii (Lindl.) G.L. Nesom Native SYDR

  Drummond's aster · Asteraceae 5 counties
• 
  Symphyotrichum drummondii (Lindl.) G.L. Nesom var. drummondii Native SYDRD

  Drummond's aster · Asteraceae 5 counties
• 
  Symphyotrichum dumosum (L.) G.L. Nesom Native SYDU2

  rice button aster · Asteraceae 32 counties
• 
  Symphyotrichum dumosum (L.) G.L. Nesom var. dumosum Native SYDUD2

  rice button aster · Asteraceae 32 counties
• 
  Symphyotrichum elliottii (Torr. & A. Gray) G.L. Nesom Native SYEL2

  Marsh American-Aster · Asteraceae 1 county
• 
  Symphyotrichum ericoides (L.) G.L. Nesom Native SYER

  white heath aster · Asteraceae 13 counties
• 
  Symphyotrichum ericoides (L.) G.L. Nesom var. ericoides Native SYERE

  white heath aster · Asteraceae 13 counties
• 
  Symphyotrichum laeve (L.) Á. Löve & D. Löve Native SYLA3

  smooth blue aster · Asteraceae 11 counties
• 
  Symphyotrichum laeve (L.) Á. Löve & D. Löve var. laeve Native SYLAL3

  smooth blue aster · Asteraceae 1 county