Colorado

• Adams 08001
  205 taxa Open ↗
• Alamosa 08003
  652 taxa Open ↗
• Arapahoe 08005
  254 taxa Open ↗
• Archuleta 08007
  651 taxa Open ↗
• Baca 08009
  785 taxa Open ↗
• Bent 08011
  267 taxa Open ↗
• Boulder 08013
  1,961 taxa Open ↗
• Broomfield 08014
  0 taxa Open ↗
• Chaffee 08015
  607 taxa Open ↗
• Cheyenne 08017
  694 taxa Open ↗

Showing 2,751–2,800 of 3,643 (native).

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  Polanisia dodecandra (L.) DC. Native PODO3

  redwhisker clammyweed · Capparaceae 26 counties
• 
  Polanisia dodecandra (L.) DC. ssp. trachysperma (Torr. & A. Gray) Iltis Native PODOT

  sandyseed clammyweed · Capparaceae 17 counties
• 
  Polanisia jamesii (Torr. & A. Gray) Iltis Native POJA3

  James' clammyweed · Capparaceae 11 counties
• 
  Polemonium brandegeei (A. Gray) Greene Native POBR8

  Brandegee's Jacob's-ladder · Polemoniaceae 12 counties
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  Polemonium confertum A. Gray Native POCO26

  Rocky Mountain Jacob's-ladder · Polemoniaceae 14 counties
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  Polemonium foliosissimum A. Gray Native POFO

  towering Jacob's-ladder · Polemoniaceae 30 counties
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  Polemonium occidentale Greene Native POOC2

  western polemonium · Polemoniaceae 12 counties
• 
  Polemonium occidentale Greene ssp. occidentale Native POOCO

  western polemonium · Polemoniaceae 12 counties
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  Polemonium pulcherrimum Hook. Native POPU3

  Jacob's-ladder · Polemoniaceae 27 counties
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  Polemonium pulcherrimum Hook. ssp. delicatum (Rydb.) Brand Native POPUD3

  Jacob's-ladder · Polemoniaceae 27 counties
• 
  Polemonium viscosum Nutt. Native POVI

  sticky polemonium · Polemoniaceae 25 counties
• 
  Poliomintha incana (Torr.) A. Gray Native POIN3

  frosted mint · Lamiaceae 2 counties
• 
  Polygala alba Nutt. Native POAL4

  white milkwort · Polygalaceae 9 counties
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  Polygala subspinosa S. Watson Native POSU2

  spiny milkwort · Polygalaceae 4 counties
• 
  Polygonum achoreum S.F. Blake Native POAC3

  leathery knotweed · Polygonaceae 3 counties
• 
  Polygonum amphibium L. Native POAM8

  water knotweed · Polygonaceae 21 counties
• 
  Polygonum amphibium L. var. emersum Michx. Native POAME

  longroot smartweed · Polygonaceae 21 counties
• 
  Polygonum bistortoides Pursh Native POBI6

  American bistort · Polygonaceae 35 counties
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  Polygonum douglasii Greene Native PODO4

  Douglas' knotweed · Polygonaceae 29 counties
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  Polygonum douglasii Greene ssp. douglasii Native PODOD4

  Douglas' knotweed · Polygonaceae 1 county
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  Polygonum douglasii Greene ssp. engelmannii (Greene) Kartesz & Gandhi Native PODOE

  Engelmann's knotweed · Polygonaceae 3 counties
• 
  Polygonum douglasii Greene ssp. johnstonii (Munz) J.C. Hickman Native PODOJ2

  Johnston's knotweed · Polygonaceae 1 county
• 
  Polygonum hydropiperoides Michx. Native POHY2

  swamp smartweed · Polygonaceae 1 county
• 
  Polygonum lapathifolium L. Native POLA4

  curlytop knotweed · Polygonaceae 24 counties
• 
  Polygonum minimum S. Watson Native POMI2

  broadleaf knotweed · Polygonaceae 5 counties
• 
  Polygonum pensylvanicum L. Native POPE2

  Pennsylvania smartweed · Polygonaceae 16 counties
• 
  Polygonum polygaloides Wall. ex Meisn. Native POPO4

  milkwort knotweed · Polygonaceae 13 counties
• 
  Polygonum polygaloides Wall. ex Meisn. ssp. kelloggii (Greene) J.C. Hickman Native POPOK

  Kellogg's knotweed · Polygonaceae 13 counties
• 
  Polygonum punctatum Elliott Native POPU5

  dotted smartweed · Polygonaceae 2 counties
• 
  Polygonum punctatum Elliott var. confertiflorum (Meisn.) Fassett Native POPUC2

  dotted smartweed · Polygonaceae 1 county
• 
  Polygonum ramosissimum Michx. Native PORA3

  bushy knotweed · Polygonaceae 25 counties
• 
  Polygonum ramosissimum Michx. var. ramosissimum Native PORAR

  bushy knotweed · Polygonaceae 24 counties
• 
  Polygonum sagittatum L. Native POSA5

  arrowleaf tearthumb · Polygonaceae 1 county
• 
  Polygonum scandens L. var. scandens Native POSCS

  climbing false buckwheat · Polygonaceae 1 county
• 
  Polygonum viviparum L. Native POVI3

  alpine bistort · Polygonaceae 26 counties
• 
  Polypodium hesperium Maxon Native POHE3

  western polypody · Polypodiaceae 3 counties
• 
  Polypodium saximontanum Windham Native POSA19

  Rocky Mountain polypody · Polypodiaceae 9 counties
• 
  Polypogon interruptus Kunth Native POIN7

  ditch rabbitsfoot grass · Poaceae 2 counties
• 
  Polystichum lonchitis (L.) Roth Native POLO4

  northern hollyfern · Dryopteridaceae 10 counties
• 
  Pomaria jamesii (Torr. & A. Gray) Walp. Native POJA5

  James' holdback · Fabaceae 13 counties
• 
  Populus angustifolia James Native POAN3

  narrowleaf cottonwood · Salicaceae 23 counties
• 
  Populus balsamifera L. Native POBA2

  balsam poplar · Salicaceae 14 counties
• 
  Populus balsamifera L. ssp. balsamifera Native POBAB2

  balsam poplar · Salicaceae 14 counties
• 
  Populus deltoides W. Bartram ex Marshall Native PODE3

  eastern cottonwood · Salicaceae 29 counties
• 
  Populus deltoides W. Bartram ex Marshall ssp. monilifera (Aiton) Eckenwalder Native PODEM

  plains cottonwood · Salicaceae 20 counties
• 
  Populus deltoides W. Bartram ex Marshall ssp. wislizeni (S. Watson) Eckenwalder Native PODEW

  Rio Grande cottonwood · Salicaceae 10 counties
• 
  Populus tremuloides Michx. Native POTR5

  quaking aspen · Salicaceae 35 counties
• ⚘
  Populus ×acuminata Rydb. (pro sp.) [angustifolia × deltoides] Native POAC5

  lanceleaf cottonwood · Salicaceae 15 counties
• 
  Portulaca halimoides L. Native POHA5

  silkcotton purslane · Portulacaceae 2 counties
• 
  Portulaca pilosa L. Native POPI3

  kiss me quick · Portulacaceae 2 counties