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 2,851–2,900 of 3,739.

• 
  Robinia pseudoacacia L. Native ROPS

  black locust · Fabaceae 49 counties
• 
  Rorippa indica (L.) Hiern. Introduced ROIN

  variableleaf yellowcress · Brassicaceae 5 counties
• 
  Rorippa palustris (L.) Besser Native ROPA2

  bog yellowcress · Brassicaceae 47 counties
• 
  Rorippa palustris (L.) Besser ssp. fernaldiana (Butters & Abbe) Jonsell Native ROPAF2

  Fernald's yellowcress · Brassicaceae 47 counties
• 
  Rorippa sessiliflora (Nutt.) Hitchc. Native ROSE

  stalkless yellowcress · Brassicaceae 56 counties
• 
  Rorippa sinuata (Nutt.) Hitchc. Native ROSI2

  spreading yellowcress · Brassicaceae 1 county
• 
  Rorippa sylvestris (L.) Besser Introduced ROSY

  creeping yellowcress · Brassicaceae 9 counties
• 
  Rorippa teres (Michx.) R. Stuckey Native ROTE2

  southern marsh yellowcress · Brassicaceae 13 counties
• 
  Rosa bracteata J.C. Wendl. Introduced ROBR

  Macartney rose · Rosaceae 46 counties
• 
  Rosa carolina L. Native ROCA4

  Carolina rose · Rosaceae 24 counties
• 
  Rosa carolina L. var. carolina Native ROCAC

  Carolina rose · Rosaceae 24 counties
• 
  Rosa gallica L. Introduced ROGA

  French rose · Rosaceae 6 counties
• 
  Rosa laevigata Michx. Introduced ROLA

  Cherokee rose · Rosaceae 24 counties
• 
  Rosa multiflora Thunb. Introduced ROMU

  multiflora rose · Rosaceae 28 counties
• 
  Rosa palustris Marshall Native ROPA

  swamp rose · Rosaceae 1 county
• 
  Rosa setigera Michx. Native ROSE2

  climbing rose · Rosaceae 6 counties
• 
  Rosa setigera Michx. var. setigera Native ROSES

  climbing rose · Rosaceae 6 counties
• 
  Rosa wichuraiana Crép. Introduced ROWI

  memorial rose · Rosaceae 1 county
• ⚘
  Rosa ×borboniana N.H.F. Desp. (pro sp.) [chinensis × damascena] Introduced ROBO3

  Bourbon rose · Rosaceae 3 counties
• 
  Rosa ×odorata (Andrews) Sweet (pro sp.) [chinensis × gigantea] Introduced ROOD2

  tea rose · Rosaceae 5 counties
• ⚘
  Rosa ×rehderiana Blackb. [chinensis × multiflora] Introduced RORE3

  polyantha rose · Rosaceae 1 county
• 
  Rostraria cristata (L.) Tzvelev Introduced ROCR3

  Mediterranean hairgrass · Poaceae 1 county
• 
  Rotala indica (Willd.) Koehne Introduced ROIN3

  Indian toothcup · Lythraceae 5 counties
• 
  Rotala ramosior (L.) Koehne Native RORA

  lowland rotala · Lythraceae 54 counties
• 
  Rottboellia cochinchinensis (Lour.) W.D. Clayton Introduced ROCO6

  itchgrass · Poaceae 25 counties
• 
  Rubus aboriginum Rydb. Native RUAB

  garden dewberry · Rosaceae 19 counties
• 
  Rubus argutus Link Native RUAR2

  sawtooth blackberry · Rosaceae 52 counties
• 
  Rubus arvensis L.H. Bailey Native RUAR5

  field blackberry · Rosaceae 12 counties
• 
  Rubus bifrons Vest ex Tratt. Introduced RUBI

  Himalayan berry · Rosaceae 4 counties
• 
  Rubus flagellaris Willd. Native RUFL

  northern dewberry · Rosaceae 35 counties
• 
  Rubus persistens Rydb. Native RUPE8

  persistent blackberry · Rosaceae 1 county
• 
  Rubus sons L.H. Bailey Native RUSO

  New Orleans dewberry · Rosaceae 2 counties
• 
  Rubus trivialis Michx. Native RUTR

  southern dewberry · Rosaceae 59 counties
• 
  Rudbeckia grandiflora (D. Don) J.F. Gmel. ex DC. Native RUGR

  rough coneflower · Asteraceae 27 counties
• 
  Rudbeckia grandiflora (D. Don) J.F. Gmel. ex DC. var. alismifolia (Torr. & A. Gray) Cronquist Native RUGRA

  rough coneflower · Asteraceae 27 counties
• 
  Rudbeckia hirta L. Native RUHI2

  blackeyed Susan · Asteraceae 45 counties
• 
  Rudbeckia laciniata L. Native RULA3

  cutleaf coneflower · Asteraceae 5 counties
• 
  Rudbeckia laciniata L. var. laciniata Native RULAL

  cutleaf coneflower · Asteraceae 5 counties
• 
  Rudbeckia maxima Nutt. Native RUMA3

  great coneflower · Asteraceae 9 counties
• 
  Rudbeckia missouriensis Engelm. ex C.L. Boynt. & Beadle Native RUMI

  Missouri orange coneflower · Asteraceae 2 counties
• 
  Rudbeckia scabrifolia L.E. Brown Native RUSC4

  roughleaf coneflower · Asteraceae 3 counties
• 
  Rudbeckia subtomentosa Pursh Native RUSU

  sweet coneflower · Asteraceae 20 counties
• 
  Rudbeckia texana (Perdue) P. Cox & Urbatsch Native RUTE4

  Texas coneflower · Asteraceae 12 counties
• 
  Rudbeckia triloba L. Native RUTR2

  browneyed Susan · Asteraceae 5 counties
• 
  Rudbeckia triloba L. var. triloba Native RUTRT

  browneyed Susan · Asteraceae 5 counties
• 
  Ruellia blechum L. Introduced RUBL3

  Browne's blechum · Acanthaceae 1 county
• 
  Ruellia caerulea Morong Introduced RUCA19

  Britton's wild petunia · Acanthaceae 12 counties
• 
  Ruellia caroliniensis (J.F. Gmel.) Steud. Native RUCA4

  Carolina wild petunia · Acanthaceae 46 counties
• 
  Ruellia caroliniensis (J.F. Gmel.) Steud. ssp. caroliniensis Native RUCAC2

  Carolina wild petunia · Acanthaceae 45 counties
• 
  Ruellia caroliniensis (J.F. Gmel.) Steud. ssp. caroliniensis var. caroliniensis Native RUCAC4

  Carolina wild petunia · Acanthaceae 45 counties