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 2,601–2,650 of 3,277.

• ⚘
  Salix fragilis L. Introduced SAFR

  crack willow · Salicaceae 1 county
• 
  Salix humilis Marshall Native SAHU2

  prairie willow · Salicaceae 23 counties
• 
  Salix interior Rowlee Native SAIN3

  sandbar willow · Salicaceae 49 counties
• 
  Salix nigra Marshall Native SANI

  black willow · Salicaceae 75 counties
• 
  Salix sericea Marshall Native SASE

  silky willow · Salicaceae 1 county
• ⚘
  Salix ×sepulcralis Simonkai [alba × babylonica] Introduced SASE10

  weeping willow · Salicaceae 2 counties
• 
  Salsola tragus L. Introduced SATR12

  prickly Russian thistle · Chenopodiaceae 1 county
• 
  Salvia azurea Michx. ex Lam. Native SAAZ

  azure blue sage · Lamiaceae 32 counties
• 
  Salvia azurea Michx. ex Lam. var. grandiflora Benth. Native SAAZG

  pitcher sage · Lamiaceae 32 counties
• 
  Salvia lyrata L. Native SALY2

  lyreleaf sage · Lamiaceae 67 counties
• 
  Salvia reflexa Hornem. Native SARE3

  lanceleaf sage · Lamiaceae 2 counties
• 
  Salvinia minima Baker Introduced SAMI7

  water spangles · Salviniaceae 3 counties
• 
  Sambucus nigra L. Both SANI4

  black elderberry · Caprifoliaceae 75 counties
• 
  Sambucus nigra L. ssp. canadensis (L.) R. Bolli Native SANIC4

  American black elderberry · Caprifoliaceae 75 counties
• 
  Samolus valerandi L. Both SAVA3

  seaside brookweed · Primulaceae 28 counties
• 
  Samolus valerandi L. ssp. parviflorus (Raf.) Hultén Native SAVAP

  seaside brookweed · Primulaceae 28 counties
• 
  Sanguinaria canadensis L. Native SACA13

  bloodroot · Papaveraceae 40 counties
• 
  Sanguisorba annua (Nutt. ex Hook.) Nutt. ex Torr. & A. Gray Native SAAN2

  prairie burnet · Rosaceae 1 county
• 
  Sanicula canadensis L. Native SACA15

  Canadian blacksnakeroot · Apiaceae 55 counties
• 
  Sanicula canadensis L. var. canadensis Native SACAC2

  Canadian blacksnakeroot · Apiaceae 55 counties
• 
  Sanicula odorata (Raf.) K.M. Pryer & L.R. Phillippe Native SAOD

  clustered blacksnakeroot · Apiaceae 18 counties
• 
  Sanicula smallii E.P. Bicknell Native SASM

  Small's blacksnakeroot · Apiaceae 4 counties
• 
  Sapindus saponaria L. Native SASA4

  wingleaf soapberry · Sapindaceae 21 counties
• 
  Sapindus saponaria L. var. drummondii (Hook. & Arn.) L.D. Benson Native SASAD

  western soapberry · Sapindaceae 21 counties
• 
  Saponaria officinalis L. Introduced SAOF4

  bouncingbet · Caryophyllaceae 36 counties
• 
  Sassafras albidum (Nutt.) Nees Native SAAL5

  sassafras · Lauraceae 75 counties
• 
  Saururus cernuus L. Native SACE

  lizard's tail · Saururaceae 50 counties
• 
  Saxifraga palmeri Bush Native SAPA13

  Palmer's saxifrage · Saxifragaceae 26 counties
• 
  Saxifraga texana Buckley Native SATE4

  Texas saxifrage · Saxifragaceae 13 counties
• 
  Saxifraga virginiensis Michx. Native SAVI5

  early saxifrage · Saxifragaceae 8 counties
• 
  Saxifraga virginiensis Michx. var. virginiensis Native SAVIV

  early saxifrage · Saxifragaceae 8 counties
• 
  Schedonnardus paniculatus (Nutt.) Trel. Native SCPA

  tumblegrass · Poaceae 3 counties
• 
  Schedonorus arundinaceus (Schreb.) Dumort., nom. cons. Introduced SCAR7

  tall fescue · Poaceae 40 counties
• 
  Schedonorus pratensis (Huds.) P. Beauv. Introduced SCPR4

  meadow fescue · Poaceae 12 counties
• 
  Schisandra glabra (E.P. Bicknell) Rehder Native SCGL7

  bay starvine · Schisandraceae 4 counties
• 
  Schizachyrium scoparium (Michx.) Nash Native SCSC

  little bluestem · Poaceae 50 counties
• 
  Schizachyrium scoparium (Michx.) Nash var. divergens (Hack.) Gould Native SCSCD

  little bluestem · Poaceae 3 counties
• 
  Schizachyrium scoparium (Michx.) Nash var. scoparium Native SCSCS

  little bluestem · Poaceae 50 counties
• 
  Schoenolirion wrightii Sherman Native SCWR3

  Texas sunnybell · Liliaceae 5 counties
• 
  Schoenoplectus acutus (Muhl. ex Bigelow) Á. Löve & D. Löve Native SCAC3

  hardstem bulrush · Cyperaceae 1 county
• 
  Schoenoplectus acutus (Muhl. ex Bigelow) Á. Löve & D. Löve var. acutus Native SCACA

  hardstem bulrush · Cyperaceae 1 county
• 
  Schoenoplectus californicus (C.A. Mey.) Palla Native SCCA11

  California bulrush · Cyperaceae 3 counties
• 
  Schoenoplectus pungens (Vahl) Palla Native SCPU10

  common threesquare · Cyperaceae 15 counties
• 
  Schoenoplectus pungens (Vahl) Palla var. pungens Native SCPUP5

  common threesquare · Cyperaceae 15 counties
• 
  Schoenoplectus tabernaemontani (C.C. Gmel.) Palla Native SCTA2

  softstem bulrush · Cyperaceae 7 counties
• 
  Scirpus atrovirens Willd. Native SCAT2

  green bulrush · Cyperaceae 13 counties
• 
  Scirpus cyperinus (L.) Kunth Native SCCY

  woolgrass · Cyperaceae 31 counties
• 
  Scirpus divaricatus Elliott Native SCDI2

  spreading bulrush · Cyperaceae 1 county
• 
  Scirpus georgianus Harper Native SCGE2

  Georgia bulrush · Cyperaceae 28 counties
• 
  Scirpus pendulus Muhl. Native SCPE4

  rufous bulrush · Cyperaceae 23 counties