Louisiana

• Acadia 22001
  964 taxa Open ↗
• Allen 22003
  1,426 taxa Open ↗
• Ascension 22005
  551 taxa Open ↗
• Assumption 22007
  456 taxa Open ↗
• Avoyelles 22009
  803 taxa Open ↗
• Beauregard 22011
  1,018 taxa Open ↗
• Bienville 22013
  1,400 taxa Open ↗
• Bossier 22015
  1,395 taxa Open ↗
• Caddo 22017
  1,796 taxa Open ↗
• Calcasieu 22019
  1,531 taxa Open ↗

Showing 2,451–2,500 of 2,926 (native).

• 
  Sideroxylon lanuginosum Michx. ssp. rigidum (A. Gray) T.D. Penn. Native SILAR2

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

  buckthorn bully · Sapotaceae 41 counties
• 
  Sideroxylon reclinatum Michx. Native SIRE8

  Florida bully · Sapotaceae 1 county
• 
  Sideroxylon reclinatum Michx. ssp. reclinatum Native SIRER2

  Florida bully · Sapotaceae 1 county
• 
  Silene antirrhina L. Native SIAN2

  sleepy silene · Caryophyllaceae 51 counties
• 
  Silene stellata (L.) W.T. Aiton Native SIST

  widowsfrill · Caryophyllaceae 9 counties
• 
  Silene subciliata B.L. Rob. Native SISU3

  Louisiana catchfly · Caryophyllaceae 4 counties
• 
  Silene virginica L. Native SIVI4

  fire pink · Caryophyllaceae 6 counties
• 
  Silene virginica L. var. virginica Native SIVIV

  fire pink · Caryophyllaceae 6 counties
• 
  Silphium asteriscus L. Native SIAS2

  starry rosinweed · Asteraceae 18 counties
• 
  Silphium asteriscus L. var. asteriscus Native SIASA3

  starry rosinweed · Asteraceae 18 counties
• 
  Silphium gracile A. Gray Native SIGR4

  slender rosinweed · Asteraceae 18 counties
• 
  Silphium integrifolium Michx. Native SIIN2

  wholeleaf rosinweed · Asteraceae 15 counties
• 
  Silphium integrifolium Michx. var. integrifolium Native SIINI

  wholeleaf rosinweed · Asteraceae 15 counties
• 
  Silphium laciniatum L. Native SILA3

  compassplant · Asteraceae 17 counties
• 
  Silphium laciniatum L. var. robinsonii L.M. Perry Native SILAR

  Robinson's compassplant · Asteraceae 17 counties
• 
  Silphium perfoliatum L. Native SIPE2

  cup plant · Asteraceae 1 county
• 
  Silphium perfoliatum L. var. perfoliatum Native SIPEP

  cup plant · Asteraceae 1 county
• 
  Silphium radula Nutt. Native SIRA2

  roughstem rosinweed · Asteraceae 15 counties
• ⚘
  Silphium trifoliatum L. Native SITR7

  whorled rosinweed · Asteraceae 1 county
• ⚘
  Silphium trifoliatum L. var. latifolium A. Gray Native SITRL

  whorled rosinweed · Asteraceae 1 county
• 
  Sisyrinchium albidum Raf. Native SIAL3

  white blue-eyed grass · Iridaceae 11 counties
• 
  Sisyrinchium angustifolium Mill. Native SIAN3

  narrowleaf blue-eyed grass · Iridaceae 41 counties
• 
  Sisyrinchium atlanticum E.P. Bicknell Native SIAT

  eastern blue-eyed grass · Iridaceae 29 counties
• 
  Sisyrinchium biforme E.P. Bicknell Native SIBI

  wiry blue-eyed grass · Iridaceae 4 counties
• 
  Sisyrinchium campestre E.P. Bicknell Native SICA9

  prairie blue-eyed grass · Iridaceae 3 counties
• 
  Sisyrinchium fuscatum E.P. Bicknell Native SIFU2

  coastal plain blue-eyed grass · Iridaceae 1 county
• 
  Sisyrinchium langloisii Greene Native SILA5

  roadside blue-eyed grass · Iridaceae 26 counties
• 
  Sisyrinchium minus Engelm. & A. Gray Native SIMI2

  dwarf blue-eyed grass · Iridaceae 19 counties
• 
  Sisyrinchium mucronatum Michx. Native SIMU3

  needletip blue-eyed grass · Iridaceae 12 counties
• 
  Sisyrinchium nashii E.P. Bicknell Native SINA

  Nash's blue-eyed grass · Iridaceae 1 county
• 
  Sisyrinchium rosulatum E.P. Bicknell Native SIRO5

  annual blue-eyed grass · Iridaceae 56 counties
• 
  Sisyrinchium sagittiferum E.P. Bicknell Native SISA3

  spearbract blue-eyed grass · Iridaceae 33 counties
• 
  Sium suave Walter Native SISU2

  hemlock waterparsnip · Apiaceae 3 counties
• 
  Smallanthus uvedalius (L.) Mack. ex Small Native SMUV

  hairy leafcup · Asteraceae 50 counties
• 
  Smilax auriculata Walter Native SMAU

  earleaf greenbrier · Smilacaceae 3 counties
• 
  Smilax bona-nox L. Native SMBO2

  saw greenbrier · Smilacaceae 59 counties
• 
  Smilax bona-nox L. var. bona-nox Native SMBOB2

  saw greenbrier · Smilacaceae 59 counties
• 
  Smilax glauca Walter Native SMGL

  cat greenbrier · Smilacaceae 45 counties
• 
  Smilax herbacea L. Native SMHE

  smooth carrionflower · Smilacaceae 11 counties
• 
  Smilax laurifolia L. Native SMLA

  laurel greenbrier · Smilacaceae 33 counties
• 
  Smilax pumila Walter Native SMPU

  sarsparilla vine · Smilacaceae 33 counties
• 
  Smilax rotundifolia L. Native SMRO

  roundleaf greenbrier · Smilacaceae 60 counties
• 
  Smilax smallii Morong Native SMSM

  lanceleaf greenbrier · Smilacaceae 47 counties
• 
  Smilax tamnoides L. Native SMTA2

  bristly greenbrier · Smilacaceae 59 counties
• 
  Smilax walteri Pursh Native SMWA

  coral greenbrier · Smilacaceae 30 counties
• 
  Solanum americanum Mill. Native SOAM

  American black nightshade · Solanaceae 14 counties
• 
  Solanum carolinense L. Native SOCA3

  Carolina horsenettle · Solanaceae 61 counties
• 
  Solanum carolinense L. var. carolinense Native SOCAC4

  Carolina horsenettle · Solanaceae 61 counties
• 
  Solanum dimidiatum Raf. Native SODI

  western horsenettle · Solanaceae 4 counties