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 301–350 of 3,739.

• 
  Avena fatua L. Introduced AVFA

  wild oat · Poaceae 17 counties
• 
  Avena sativa L. Introduced AVSA

  common oat · Poaceae 56 counties
• 
  Avicennia germinans (L.) L. Native AVGE

  black mangrove · Verbenaceae 5 counties
• 
  Axonopus compressus (Sw.) P. Beauv. Native AXCO

  broadleaf carpetgrass · Poaceae 3 counties
• 
  Axonopus fissifolius (Raddi) Kuhlm. Native AXFI

  common carpetgrass · Poaceae 57 counties
• 
  Axonopus furcatus (Flueggé) Hitchc. Native AXFU

  big carpetgrass · Poaceae 22 counties
• 
  Azolla caroliniana Willd. Native AZCA

  Carolina mosquitofern · Azollaceae 41 counties
• 
  Baccharis angustifolia Michx. Native BAAN

  saltwater false willow · Asteraceae 6 counties
• 
  Baccharis halimifolia L. Native BAHA

  eastern baccharis · Asteraceae 62 counties
• 
  Bacopa caroliniana (Walter) B.L. Rob. Native BACA

  blue waterhyssop · Scrophulariaceae 15 counties
• 
  Bacopa egensis (Poepp.) Pennell Introduced BAEG

  Brazilian waterhyssop · Scrophulariaceae 5 counties
• 
  Bacopa monnieri (L.) Pennell Native BAMO

  herb of grace · Scrophulariaceae 34 counties
• 
  Bacopa repens (Sw.) Wettst. Native BARE

  creeping waterhyssop · Scrophulariaceae 14 counties
• 
  Bacopa rotundifolia (Michx.) Wettst. Native BARO

  disk waterhyssop · Scrophulariaceae 40 counties
• 
  Balduina uniflora Nutt. Native BAUN

  oneflower honeycombhead · Asteraceae 2 counties
• 
  Baptisia alba (L.) Vent. Native BAAL

  white wild indigo · Fabaceae 39 counties
• 
  Baptisia alba (L.) Vent. var. macrophylla (Larisey) Isely Native BAALM

  largeleaf wild indigo · Fabaceae 39 counties
• 
  Baptisia bracteata Muhl. ex Elliott Native BABR2

  longbract wild indigo · Fabaceae 36 counties
• 
  Baptisia bracteata Muhl. ex Elliott var. laevicaulis (A. Gray ex Canby) Isely Native BABRL

  longbract wild indigo · Fabaceae 13 counties
• 
  Baptisia bracteata Muhl. ex Elliott var. leucophaea (Nutt.) Kartesz & Gandhi Native BABRL2

  longbract wild indigo · Fabaceae 35 counties
• 
  Baptisia nuttalliana Small Native BANU2

  Nuttall's wild indigo · Fabaceae 35 counties
• 
  Baptisia sphaerocarpa Nutt. Native BASP

  yellow wild indigo · Fabaceae 17 counties
• ⚘
  Baptisia ×bushii Small (pro sp.) [bracteata × sphaerocarpa] Native BABU

  wild indigo · Fabaceae 1 county
• ⚘
  Baptisia ×sulphurea Engelm. (pro sp.) [alba × sphaerocarpa] Native BASU

  wild indigo · Fabaceae 3 counties
• 
  Bartonia verna (Michx.) Raf. ex Barton Native BAVE2

  white screwstem · Gentianaceae 2 counties
• 
  Bartonia virginica (L.) Britton, Sterns & Poggenb. Native BAVI3

  yellow screwstem · Gentianaceae 13 counties
• 
  Bassia scoparia (L.) A.J. Scott Introduced BASC5

  burningbush · Chenopodiaceae 6 counties
• 
  Batis maritima L. Native BAMA5

  turtleweed · Bataceae 7 counties
• 
  Belamcanda chinensis (L.) DC. Introduced BECH

  blackberry lily · Iridaceae 1 county
• 
  Bellardia trixago (L.) All. Introduced BETR

  Mediterranean lineseed · Scrophulariaceae 1 county
• 
  Berchemia scandens (Hill) K. Koch Native BESC

  Alabama supplejack · Rhamnaceae 61 counties
• 
  Bergia texana (Hook.) Seub. ex Walp. Native BETE

  Texas bergia · Elatinaceae 6 counties
• 
  Berlandiera betonicifolia (Hook.) Small Native BEBE4

  Texas greeneyes · Asteraceae 6 counties
• 
  Berlandiera pumila (Michx.) Nutt. Native BEPU2

  soft greeneyes · Asteraceae 6 counties
• 
  Berlandiera pumila (Michx.) Nutt. var. scabrella G.L. Nesom & B.L. Turner Native BEPUS

  soft greeneyes · Asteraceae 1 county
• 
  Betula nigra L. Native BENI

  river birch · Betulaceae 32 counties
• 
  Bidens aristosa (Michx.) Britton Native BIAR

  bearded beggarticks · Asteraceae 35 counties
• 
  Bidens bipinnata L. Native BIBI7

  Spanish needles · Asteraceae 49 counties
• 
  Bidens cernua L. Native BICE

  nodding beggartick · Asteraceae 10 counties
• 
  Bidens discoidea (Torr. & A. Gray) Britton Native BIDI

  small beggarticks · Asteraceae 36 counties
• 
  Bidens frondosa L. Native BIFR

  devil's beggartick · Asteraceae 34 counties
• 
  Bidens laevis (L.) Britton, Sterns & Poggenb. Native BILA

  smooth beggartick · Asteraceae 26 counties
• 
  Bidens mitis (Michx.) Sherff Native BIMI

  smallfruit beggarticks · Asteraceae 12 counties
• 
  Bidens pilosa L. Introduced BIPI

  hairy beggarticks · Asteraceae 18 counties
• 
  Bidens tripartita L. Native BITR

  threelobe beggarticks · Asteraceae 3 counties
• 
  Bigelowia nudata (Michx.) DC. Native BINU

  pineland rayless goldenrod · Asteraceae 5 counties
• 
  Bigelowia nudata (Michx.) DC. ssp. nudata Native BINUN

  pineland rayless goldenrod · Asteraceae 5 counties
• 
  Bigelowia nuttallii L.C. Anderson Native BINU2

  Nuttall's rayless goldenrod · Asteraceae 14 counties
• 
  Bignonia capreolata L. Native BICA

  crossvine · Bignoniaceae 57 counties
• 
  Blechnum occidentale L. Native BLOC

  hammock fern · Blechnaceae 1 county