Montana

• Beaverhead 30001
  755 taxa Open ↗
• Big Horn 30003
  565 taxa Open ↗
• Blaine 30005
  333 taxa Open ↗
• Broadwater 30007
  359 taxa Open ↗
• Carbon 30009
  749 taxa Open ↗
• Carter 30011
  454 taxa Open ↗
• Cascade 30013
  768 taxa Open ↗
• Chouteau 30015
  423 taxa Open ↗
• Custer 30017
  458 taxa Open ↗
• Daniels 30019
  384 taxa Open ↗

Showing 301–350 of 465 (introduced).

• 
  Papaver rhoeas L. Introduced PARH2

  corn poppy · Papaveraceae 2 counties
• 
  Pastinaca sativa L. Introduced PASA2

  wild parsnip · Apiaceae 18 counties
• 
  Peganum harmala L. Introduced PEHA

  harmal peganum · Zygophyllaceae 2 counties
• 
  Phalaris aquatica L. Introduced PHAQ

  bulbous canarygrass · Poaceae 1 county
• 
  Phalaris canariensis L. Introduced PHCA5

  annual canarygrass · Poaceae 6 counties
• 
  Phleum pratense L. Introduced PHPR3

  timothy · Poaceae 41 counties
• 
  Picris echioides L. Introduced PIEC

  bristly oxtongue · Asteraceae 1 county
• 
  Plantago lanceolata L. Introduced PLLA

  narrowleaf plantain · Plantaginaceae 15 counties
• 
  Plantago major L. Introduced PLMA2

  common plantain · Plantaginaceae 36 counties
• 
  Poa annua L. Introduced POAN

  annual bluegrass · Poaceae 18 counties
• 
  Poa bulbosa L. Introduced POBU

  bulbous bluegrass · Poaceae 22 counties
• 
  Poa compressa L. Introduced POCO

  Canada bluegrass · Poaceae 45 counties
• 
  Poa pratensis L. ssp. pratensis Introduced POPRP2

  Kentucky bluegrass · Poaceae 3 counties
• 
  Poa trivialis L. Introduced POTR2

  rough bluegrass · Poaceae 9 counties
• 
  Polygonum arenastrum Jord. ex Boreau Introduced POAR11

  oval-leaf knotweed · Polygonaceae 11 counties
• 
  Polygonum aviculare L. Introduced POAV

  prostrate knotweed · Polygonaceae 53 counties
• 
  Polygonum convolvulus L. Introduced POCO10

  black bindweed · Polygonaceae 37 counties
• 
  Polygonum convolvulus L. var. convolvulus Introduced POCOC2

  black bindweed · Polygonaceae 37 counties
• 
  Polygonum cuspidatum Siebold & Zucc. Introduced POCU6

  Japanese knotweed · Polygonaceae 11 counties
• 
  Polygonum hydropiper L. Introduced POHY

  marshpepper knotweed · Polygonaceae 8 counties
• 
  Polygonum persicaria L. Introduced POPE3

  spotted ladysthumb · Polygonaceae 26 counties
• 
  Polygonum sachalinense F. Schmidt ex Maxim. Introduced POSA4

  giant knotweed · Polygonaceae 21 counties
• 
  Polypogon monspeliensis (L.) Desf. Introduced POMO5

  annual rabbitsfoot grass · Poaceae 20 counties
• 
  Populus alba L. Introduced POAL7

  white poplar · Salicaceae 12 counties
• 
  Potamogeton crispus L. Introduced POCR3

  curly pondweed · Potamogetonaceae 2 counties
• 
  Potentilla argentea L. Introduced POAR8

  silver cinquefoil · Rosaceae 12 counties
• 
  Potentilla argentea L. var. argentea Introduced POARA3

  silver cinquefoil · Rosaceae 12 counties
• 
  Potentilla recta L. Introduced PORE5

  sulphur cinquefoil · Rosaceae 33 counties
• 
  Prunus cerasus L. Introduced PRCE

  sour cherry · Rosaceae 1 county
• 
  Prunus mahaleb L. Introduced PRMA

  Mahaleb cherry · Rosaceae 1 county
• 
  Psathyrostachys juncea (Fisch.) Nevski Introduced PSJU3

  Russian wildrye · Poaceae 13 counties
• ⚘
  Pseudolysimachion longifolium (L.) Opiz Introduced PSLO6

  longleaf speedwell · Scrophulariaceae 2 counties
• 
  Puccinellia distans (Jacq.) Parl. ssp. distans Introduced PUDID

  weeping alkaligrass · Poaceae 16 counties
• 
  Pyrus communis L. Introduced PYCO

  common pear · Rosaceae 1 county
• 
  Ranunculus acris L. var. acris Introduced RAACA3

  showy buttercup · Ranunculaceae 26 counties
• 
  Ranunculus arvensis L. Introduced RAAR3

  corn buttercup · Ranunculaceae 5 counties
• 
  Ranunculus repens L. Introduced RARE3

  creeping buttercup · Ranunculaceae 15 counties
• 
  Raphanus raphanistrum L. Introduced RARA2

  wild radish · Brassicaceae 3 counties
• ⚘
  Raphanus sativus L. Introduced RASA2

  cultivated radish · Brassicaceae 2 counties
• 
  Reseda lutea L. Introduced RELU

  yellow mignonette · Resedaceae 4 counties
• 
  Rhamnus cathartica L. Introduced RHCA3

  common buckthorn · Rhamnaceae 27 counties
• 
  Ribes rubrum L. Introduced RIRU80

  cultivated currant · Grossulariaceae 3 counties
• 
  Rorippa austriaca (Crantz) Besser Introduced ROAU

  Austrian yellowcress · Brassicaceae 3 counties
• 
  Rorippa sylvestris (L.) Besser Introduced ROSY

  creeping yellowcress · Brassicaceae 3 counties
• 
  Rosa rubiginosa L. Introduced RORU82

  sweetbriar rose · Rosaceae 2 counties
• 
  Rubus laciniatus Willd. Introduced RULA

  cutleaf blackberry · Rosaceae 4 counties
• 
  Rumex acetosa L. ssp. acetosa Introduced RUACA

  garden sorrel · Polygonaceae 6 counties
• 
  Rumex acetosella L. Introduced RUAC3

  common sheep sorrel · Polygonaceae 33 counties
• 
  Rumex crispus L. Introduced RUCR

  curly dock · Polygonaceae 55 counties
• 
  Rumex crispus L. ssp. crispus Introduced RUCRC

  curly dock · Polygonaceae 55 counties