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 251–300 of 3,739.

• 
  Arundo donax L. Introduced ARDO4

  giant reed · Poaceae 37 counties
• 
  Asarum canadense L. Native ASCA

  Canadian wildginger · Aristolochiaceae 1 county
• 
  Asclepias amplexicaulis Sm. Native ASAM

  clasping milkweed · Asclepiadaceae 25 counties
• 
  Asclepias curassavica L. Introduced ASCU

  bloodflower · Asclepiadaceae 3 counties
• 
  Asclepias hirtella (Pennell) Woodson Native ASHI

  green milkweed · Asclepiadaceae 3 counties
• 
  Asclepias humistrata Walter Native ASHU3

  pinewoods milkweed · Asclepiadaceae 2 counties
• 
  Asclepias incarnata L. Native ASIN

  swamp milkweed · Asclepiadaceae 5 counties
• 
  Asclepias incarnata L. ssp. incarnata Native ASINI

  swamp milkweed · Asclepiadaceae 5 counties
• 
  Asclepias lanceolata Walter Native ASLA2

  fewflower milkweed · Asclepiadaceae 12 counties
• 
  Asclepias longifolia Michx. Native ASLO

  longleaf milkweed · Asclepiadaceae 19 counties
• 
  Asclepias michauxii Decne. Native ASMI12

  Michaux's milkweed · Asclepiadaceae 3 counties
• 
  Asclepias obovata Elliott Native ASOB

  pineland milkweed · Asclepiadaceae 19 counties
• 
  Asclepias oenotheroides Cham. & Schltdl. Native ASOE

  zizotes milkweed · Asclepiadaceae 1 county
• 
  Asclepias perennis Walter Native ASPE

  aquatic milkweed · Asclepiadaceae 56 counties
• 
  Asclepias purpurascens L. Native ASPU2

  purple milkweed · Asclepiadaceae 2 counties
• 
  Asclepias rubra L. Native ASRU

  red milkweed · Asclepiadaceae 4 counties
• 
  Asclepias stenophylla A. Gray Native ASST

  slimleaf milkweed · Asclepiadaceae 1 county
• 
  Asclepias syriaca L. Native ASSY

  common milkweed · Asclepiadaceae 3 counties
• 
  Asclepias tuberosa L. Native ASTU

  butterfly milkweed · Asclepiadaceae 35 counties
• 
  Asclepias tuberosa L. ssp. interior Woodson Native ASTUI

  butterfly milkweed · Asclepiadaceae 35 counties
• 
  Asclepias variegata L. Native ASVA

  redring milkweed · Asclepiadaceae 36 counties
• 
  Asclepias verticillata L. Native ASVE

  whorled milkweed · Asclepiadaceae 26 counties
• 
  Asclepias viridiflora Raf. Native ASVI

  green comet milkweed · Asclepiadaceae 17 counties
• 
  Asclepias viridis Walter Native ASVI2

  green antelopehorn · Asclepiadaceae 34 counties
• 
  Asimina parviflora (Michx.) Dunal Native ASPA18

  smallflower pawpaw · Annonaceae 23 counties
• 
  Asimina triloba (L.) Dunal Native ASTR

  pawpaw · Annonaceae 44 counties
• 
  Asparagus officinalis L. Introduced ASOF

  garden asparagus · Liliaceae 24 counties
• 
  Asplenium platyneuron (L.) Britton, Sterns & Poggenb. Native ASPL

  ebony spleenwort · Aspleniaceae 60 counties
• 
  Asplenium resiliens Kunze Native ASRE

  blackstem spleenwort · Aspleniaceae 1 county
• 
  Asplenium trichomanes L. Native ASTR2

  maidenhair spleenwort · Aspleniaceae 1 county
• 
  Asplenium trichomanes L. ssp. trichomanes Native ASTRT

  maidenhair spleenwort · Aspleniaceae 1 county
• 
  Astragalus canadensis L. Native ASCA11

  Canadian milkvetch · Fabaceae 6 counties
• 
  Astragalus canadensis L. var. canadensis Native ASCAC6

  Canadian milkvetch · Fabaceae 6 counties
• 
  Astragalus crassicarpus Nutt. Native ASCR2

  groundplum milkvetch · Fabaceae 2 counties
• 
  Astragalus crassicarpus Nutt. var. trichocalyx (Nutt.) Barneby Native ASCRT

  groundplum milkvetch · Fabaceae 2 counties
• 
  Astragalus distortus Torr. & A. Gray Native ASDI4

  Ozark milkvetch · Fabaceae 9 counties
• 
  Astragalus distortus Torr. & A. Gray var. engelmannii (Sheldon) M.E. Jones Native ASDIE

  Englemann's milkvetch · Fabaceae 1 county
• 
  Astragalus leptocarpus Torr. & A. Gray Native ASLE10

  rare loco milkvetch · Fabaceae 9 counties
• 
  Astragalus nuttallianus DC. Native ASNU4

  smallflowered milkvetch · Fabaceae 1 county
• 
  Astragalus nuttallianus DC. var. nuttallianus Native ASNUN

  smallflowered milkvetch · Fabaceae 1 county
• 
  Astragalus soxmaniorum Lundell Native ASSO5

  Soxman's milkvetch · Fabaceae 4 counties
• 
  Athyrium filix-femina (L.) Roth Native ATFI

  common ladyfern · Dryopteridaceae 36 counties
• 
  Athyrium filix-femina (L.) Roth ssp. asplenioides (Michx.) Hultén Native ATFIA2

  asplenium ladyfern · Dryopteridaceae 36 counties
• 
  Atriplex cristata Humb. & Bonpl. ex Willd. Native ATCR2

  crested saltbush · Chenopodiaceae 8 counties
• 
  Aureolaria flava (L.) Farw. Native AUFL

  smooth yellow false foxglove · Scrophulariaceae 6 counties
• 
  Aureolaria flava (L.) Farw. var. macrantha Pennell Native AUFLM

  smooth yellow false foxglove · Scrophulariaceae 6 counties
• 
  Aureolaria grandiflora (Benth.) Pennell Native AUGR

  largeflower yellow false foxglove · Scrophulariaceae 23 counties
• 
  Aureolaria grandiflora (Benth.) Pennell var. serrata (Torr. ex Benth.) Pennell Native AUGRS

  largeflower yellow false foxglove · Scrophulariaceae 23 counties
• 
  Aureolaria pectinata (Nutt.) Pennell Native AUPE

  combleaf yellow false foxglove · Scrophulariaceae 11 counties
• 
  Aureolaria virginica (L.) Pennell Native AUVI

  downy yellow false foxglove · Scrophulariaceae 17 counties