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 2,301–2,350 of 3,739.

• 
  Papaver rhoeas L. Introduced PARH2

  corn poppy · Papaveraceae 5 counties
• 
  Papaver somniferum L. Introduced PASO2

  opium poppy · Papaveraceae 7 counties
• 
  Parapholis incurva (L.) C.E. Hubbard Introduced PAIN

  curved sicklegrass · Poaceae 3 counties
• 
  Parentucellia viscosa (L.) Caruel Introduced PAVI3

  yellow glandweed · Scrophulariaceae 2 counties
• 
  Parietaria floridana Nutt. Native PAFL3

  Florida pellitory · Urticaceae 14 counties
• 
  Parietaria judaica L. Introduced PAJU

  spreading pellitory · Urticaceae 1 county
• 
  Parietaria pensylvanica Muhl. ex Willd. Native PAPE5

  Pennsylvania pellitory · Urticaceae 29 counties
• 
  Parietaria praetermissa Hinton Native PAPR6

  clustered pellitory · Urticaceae 2 counties
• 
  Parkinsonia aculeata L. Native PAAC3

  Jerusalem thorn · Fabaceae 17 counties
• 
  Parnassia grandifolia DC. Native PAGR

  largeleaf grass of Parnassus · Saxifragaceae 1 county
• 
  Paronychia canadensis (L.) Alph. Wood Native PACA11

  smooth forked nailwort · Caryophyllaceae 1 county
• 
  Paronychia drummondii Torr. & A. Gray Native PADR

  Drummond's nailwort · Caryophyllaceae 5 counties
• 
  Paronychia erecta (Chapm.) Shinners Native PAER2

  squareflower · Caryophyllaceae 1 county
• 
  Paronychia erecta (Chapm.) Shinners var. corymbosa (Small) Chaudhri Native PAERC

  squareflower · Caryophyllaceae 1 county
• 
  Paronychia fastigiata (Raf.) Fernald Native PAFA3

  hairy forked nailwort · Caryophyllaceae 4 counties
• 
  Paronychia fastigiata (Raf.) Fernald var. fastigiata Native PAFAF

  hairy forked nailwort · Caryophyllaceae 4 counties
• 
  Parthenium hispidum Raf. Native PAHI8

  wild quinine · Asteraceae 12 counties
• 
  Parthenium hysterophorus L. Introduced PAHY

  Santa Maria feverfew · Asteraceae 41 counties
• 
  Parthenocissus quinquefolia (L.) Planch. Native PAQU2

  Virginia creeper · Vitaceae 56 counties
• 
  Paspalidium geminatum (Forssk.) Stapf Native PAGE2

  Egyptian panicgrass · Poaceae 1 county
• 
  Paspalidium geminatum (Forssk.) Stapf var. geminatum Native PAGEG

  Egyptian panicgrass · Poaceae 1 county
• 
  Paspalum acuminatum Raddi Native PAAC4

  brook crowngrass · Poaceae 10 counties
• 
  Paspalum almum Chase Introduced PAAL7

  Comb's crowngrass · Poaceae 1 county
• 
  Paspalum bifidum (Bertol.) Nash Native PABI3

  pitchfork crowngrass · Poaceae 10 counties
• 
  Paspalum boscianum Flueggé Native PABO3

  bull crowngrass · Poaceae 18 counties
• 
  Paspalum conjugatum P.J. Bergius Native PACO14

  hilograss · Poaceae 26 counties
• 
  Paspalum convexum Humb. & Bonpl. ex Flueggé Introduced PACO15

  Latin American crowngrass · Poaceae 6 counties
• 
  Paspalum denticulatum Trin. Native PADE24

  longtom · Poaceae 18 counties
• 
  Paspalum dilatatum Poir. Introduced PADI3

  dallisgrass · Poaceae 64 counties
• 
  Paspalum dissectum (L.) L. Native PADI5

  mudbank crowngrass · Poaceae 32 counties
• 
  Paspalum distichum L. Native PADI6

  knotgrass · Poaceae 51 counties
• 
  Paspalum floridanum Michx. Native PAFL4

  Florida paspalum · Poaceae 40 counties
• 
  Paspalum fluitans (Elliott) Kunth Native PAFL5

  horsetail paspalum · Poaceae 52 counties
• 
  Paspalum intermedium Munro ex Morong Introduced PAIN5

  intermediate paspalum · Poaceae 1 county
• 
  Paspalum laeve Michx. Native PALA10

  field paspalum · Poaceae 47 counties
• 
  Paspalum langei (Fourn.) Nash Native PALA11

  rustyseed paspalum · Poaceae 30 counties
• 
  Paspalum minus Fourn. Native PAMI4

  matted paspalum · Poaceae 13 counties
• 
  Paspalum modestum Mez Introduced PAMO11

  water paspalum · Poaceae 5 counties
• 
  Paspalum monostachyum Vasey Native PAMO4

  gulfdune paspalum · Poaceae 1 county
• 
  Paspalum notatum Flueggé Both PANO2

  bahiagrass · Poaceae 60 counties
• 
  Paspalum notatum Flueggé var. latiflorum J. Döll Introduced PANOL3

  bahiagrass · Poaceae 8 counties
• 
  Paspalum notatum Flueggé var. notatum Native PANON

  bahiagrass · Poaceae 6 counties
• 
  Paspalum notatum Flueggé var. saurae Parodi Introduced PANOS

  bahiagrass · Poaceae 59 counties
• 
  Paspalum plicatulum Michx. Native PAPL3

  brownseed paspalum · Poaceae 38 counties
• 
  Paspalum praecox Walter Native PAPR4

  early paspalum · Poaceae 27 counties
• 
  Paspalum pubiflorum Rupr. ex Fourn. Native PAPU5

  hairyseed paspalum · Poaceae 21 counties
• 
  Paspalum setaceum Michx. Native PASE5

  thin paspalum · Poaceae 52 counties
• 
  Paspalum urvillei Steud. Introduced PAUR2

  Vasey's grass · Poaceae 64 counties
• 
  Paspalum vaginatum Sw. Native PAVA

  seashore paspalum · Poaceae 12 counties
• 
  Passiflora caerulea L. Introduced PACA22

  bluecrown passionflower · Passifloraceae 10 counties