Idaho

• Ada 16001
  1,138 taxa Open ↗
• Adams 16003
  1,150 taxa Open ↗
• Bannock 16005
  1,054 taxa Open ↗
• Bear Lake 16007
  742 taxa Open ↗
• Benewah 16009
  567 taxa Open ↗
• Bingham 16011
  581 taxa Open ↗
• Blaine 16013
  1,253 taxa Open ↗
• Boise 16015
  1,167 taxa Open ↗
• Bonner 16017
  1,263 taxa Open ↗
• Bonneville 16019
  857 taxa Open ↗

Showing 2,651–2,700 of 3,547 (native).

• 
  Polygonum buxiforme Small Native POBU2

  box knotweed · Polygonaceae 12 counties
• 
  Polygonum davisiae W.H. Brewer ex A. Gray Native PODA

  Davis' knotweed · Polygonaceae 1 county
• 
  Polygonum douglasii Greene Native PODO4

  Douglas' knotweed · Polygonaceae 39 counties
• 
  Polygonum douglasii Greene ssp. austiniae (Greene) A.E. Murray Native PODOA2

  Austin knotweed · Polygonaceae 7 counties
• 
  Polygonum douglasii Greene ssp. douglasii Native PODOD4

  Douglas' knotweed · Polygonaceae 8 counties
• 
  Polygonum douglasii Greene ssp. engelmannii (Greene) Kartesz & Gandhi Native PODOE

  Engelmann's knotweed · Polygonaceae 8 counties
• 
  Polygonum douglasii Greene ssp. johnstonii (Munz) J.C. Hickman Native PODOJ2

  Johnston's knotweed · Polygonaceae 17 counties
• 
  Polygonum douglasii Greene ssp. majus (Meisn.) J.C. Hickman Native PODOM2

  large knotweed · Polygonaceae 14 counties
• 
  Polygonum douglasii Greene ssp. spergulariiforme (Meisn. ex Small) J.C. Hickman Native PODOS2

  scatter knotweed · Polygonaceae 2 counties
• 
  Polygonum erectum L. Native POER2

  erect knotweed · Polygonaceae 1 county
• ⚘
  Polygonum heterosepalum M. Peck & Ownbey Native POHE2

  oddsepal knotweed · Polygonaceae 4 counties
• 
  Polygonum hydropiperoides Michx. Native POHY2

  swamp smartweed · Polygonaceae 5 counties
• 
  Polygonum lapathifolium L. Native POLA4

  curlytop knotweed · Polygonaceae 20 counties
• 
  Polygonum minimum S. Watson Native POMI2

  broadleaf knotweed · Polygonaceae 10 counties
• 
  Polygonum phytolaccifolium Meisn. ex Small Native POPH

  poke knotweed · Polygonaceae 14 counties
• 
  Polygonum polygaloides Wall. ex Meisn. Native POPO4

  milkwort knotweed · Polygonaceae 29 counties
• 
  Polygonum polygaloides Wall. ex Meisn. ssp. confertiflorum (Nutt. ex Piper) J.C. Hickman Native POPOC

  fruitleaf knotweed · Polygonaceae 16 counties
• 
  Polygonum polygaloides Wall. ex Meisn. ssp. kelloggii (Greene) J.C. Hickman Native POPOK

  Kellogg's knotweed · Polygonaceae 26 counties
• 
  Polygonum punctatum Elliott Native POPU5

  dotted smartweed · Polygonaceae 6 counties
• 
  Polygonum punctatum Elliott var. confertiflorum (Meisn.) Fassett Native POPUC2

  dotted smartweed · Polygonaceae 6 counties
• 
  Polygonum ramosissimum Michx. Native PORA3

  bushy knotweed · Polygonaceae 6 counties
• 
  Polygonum ramosissimum Michx. var. prolificum Small Native PORAP

  bushy knotweed · Polygonaceae 2 counties
• 
  Polygonum viviparum L. Native POVI3

  alpine bistort · Polygonaceae 7 counties
• 
  Polypodium glycyrrhiza D.C. Eaton Native POGL8

  licorice fern · Polypodiaceae 1 county
• 
  Polypodium hesperium Maxon Native POHE3

  western polypody · Polypodiaceae 6 counties
• 
  Polystichum andersonii Hopkins Native POAN2

  Anderson's hollyfern · Dryopteridaceae 8 counties
• 
  Polystichum braunii (Spenner) Fée Native POBR4

  Braun's hollyfern · Dryopteridaceae 2 counties
• 
  Polystichum kruckebergii W.H. Wagner Native POKR

  Kruckeberg's hollyfern · Dryopteridaceae 4 counties
• 
  Polystichum lonchitis (L.) Roth Native POLO4

  northern hollyfern · Dryopteridaceae 15 counties
• 
  Polystichum munitum (Kaulf.) C. Presl Native POMU

  western swordfern · Dryopteridaceae 9 counties
• 
  Polystichum scopulinum (D.C. Eaton) Maxon Native POSC5

  mountain hollyfern · Dryopteridaceae 6 counties
• 
  Populus angustifolia James Native POAN3

  narrowleaf cottonwood · Salicaceae 24 counties
• 
  Populus balsamifera L. Native POBA2

  balsam poplar · Salicaceae 30 counties
• 
  Populus balsamifera L. ssp. balsamifera Native POBAB2

  balsam poplar · Salicaceae 3 counties
• 
  Populus balsamifera L. ssp. trichocarpa (Torr. & A. Gray ex Hook.) Brayshaw Native POBAT

  black cottonwood · Salicaceae 30 counties
• 
  Populus tremuloides Michx. Native POTR5

  quaking aspen · Salicaceae 25 counties
• ⚘
  Populus ×acuminata Rydb. (pro sp.) [angustifolia × deltoides] Native POAC5

  lanceleaf cottonwood · Salicaceae 11 counties
• 
  Porterella carnosula (Hook. & Arn.) Torr. Native POCA15

  fleshy porterella · Campanulaceae 12 counties
• 
  Potamogeton alpinus Balbis Native POAL8

  alpine pondweed · Potamogetonaceae 6 counties
• 
  Potamogeton amplifolius Tuck. Native POAM5

  largeleaf pondweed · Potamogetonaceae 4 counties
• 
  Potamogeton diversifolius Raf. Native PODI

  waterthread pondweed · Potamogetonaceae 4 counties
• 
  Potamogeton epihydrus Raf. Native POEP2

  ribbonleaf pondweed · Potamogetonaceae 7 counties
• 
  Potamogeton foliosus Raf. Native POFO3

  leafy pondweed · Potamogetonaceae 9 counties
• 
  Potamogeton foliosus Raf. ssp. foliosus Native POFOF4

  leafy pondweed · Potamogetonaceae 5 counties
• 
  Potamogeton friesii Rupr. Native POFR3

  Fries' pondweed · Potamogetonaceae 2 counties
• 
  Potamogeton gramineus L. Native POGR8

  variableleaf pondweed · Potamogetonaceae 10 counties
• 
  Potamogeton natans L. Native PONA4

  floating pondweed · Potamogetonaceae 9 counties
• 
  Potamogeton nodosus Poir. Native PONO2

  longleaf pondweed · Potamogetonaceae 10 counties
• 
  Potamogeton obtusifolius Mert. & W.D.J. Koch Native POOB2

  bluntleaf pondweed · Potamogetonaceae 1 county
• 
  Potamogeton praelongus Wulfen Native POPR5

  whitestem pondweed · Potamogetonaceae 2 counties