Clackamas County

Showing 1,051–1,100 of 1,485.

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  Polystichum imbricans (D.C. Eaton) D.H. Wagner ssp. imbricans Native POIMI

  narrowleaf swordfern · Dryopteridaceae
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  Polystichum lonchitis (L.) Roth Native POLO4

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

  western swordfern · Dryopteridaceae
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  Populus balsamifera L. Native POBA2

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

  black cottonwood · Salicaceae
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  Populus tremuloides Michx. Native POTR5

  quaking aspen · Salicaceae
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  Portulaca oleracea L. Both POOL

  little hogweed · Portulacaceae
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  Potamogeton gramineus L. Native POGR8

  variableleaf pondweed · Potamogetonaceae
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  Potamogeton natans L. Native PONA4

  floating pondweed · Potamogetonaceae
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  Potamogeton nodosus Poir. Native PONO2

  longleaf pondweed · Potamogetonaceae
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  Potamogeton pusillus L. Native POPU7

  small pondweed · Potamogetonaceae
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  Potamogeton pusillus L. ssp. tenuissimus (Mert. & W.D.J. Koch) Haynes & C.B. Hellquist Native POPUT3

  small pondweed · Potamogetonaceae
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  Potentilla drummondii Lehm. Native PODR

  Drummond's cinquefoil · Rosaceae
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  Potentilla flabellifolia Hook. ex Torr. & A. Gray Native POFL3

  high mountain cinquefoil · Rosaceae
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  Potentilla glandulosa Lindl. Native POGL9

  sticky cinquefoil · Rosaceae
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  Potentilla glandulosa Lindl. ssp. glabrata (Rydb.) D.D. Keck Native POGLG3

  sticky cinquefoil · Rosaceae
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  Potentilla gracilis Douglas ex Hook. Native POGR9

  slender cinquefoil · Rosaceae
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  Potentilla gracilis Douglas ex Hook. var. fastigiata (Nutt.) S. Watson Native POGRF2

  slender cinquefoil · Rosaceae
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  Potentilla gracilis Douglas ex Hook. var. gracilis Native POGRG3

  graceful cinquefoil · Rosaceae
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  Prenanthes alata (Hook.) D. Dietr. Native PRAL

  western rattlesnakeroot · Asteraceae
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  Proboscidea louisianica (Mill.) Thell. Native PRLO

  ram's horn · Pedaliaceae
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  Proboscidea louisianica (Mill.) Thell. ssp. louisianica Native PRLOL

  ram's horn · Pedaliaceae
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  Prosartes hookeri Torr. Native PRHO2

  drops-of-gold · Liliaceae
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  Prosartes hookeri Torr. var. oregana (S. Watson) Kartesz Native PRHOO

  Oregon drops of gold · Liliaceae
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  Prosartes smithii (Hook.) Utech, Shinwari & Kawano Native PRSM

  largeflower fairybells · Liliaceae
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  Prunella vulgaris L. Native PRVU

  common selfheal · Lamiaceae
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  Prunella vulgaris L. ssp. lanceolata (W. Bartram) Hultén Native PRVUL2

  lance selfheal · Lamiaceae
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  Prunella vulgaris L. ssp. vulgaris Native PRVUV

  common selfheal · Lamiaceae
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  Prunus avium (L.) L. Introduced PRAV

  sweet cherry · Rosaceae
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  Prunus cerasifera Ehrh. Introduced PRCE2

  cherry plum · Rosaceae
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  Prunus emarginata (Douglas ex Hook.) D. Dietr. Native PREM

  bitter cherry · Rosaceae
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  Prunus emarginata (Douglas ex Hook.) D. Dietr. var. emarginata Native PREME

  bitter cherry · Rosaceae
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  Prunus emarginata (Douglas ex Hook.) D. Dietr. var. mollis (Douglas ex Hook.) W.H. Brewer Native PREMM

  bitter cherry · Rosaceae
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  Prunus laurocerasus L. Introduced PRLA5

  cherry laurel · Rosaceae
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  Prunus virginiana L. Native PRVI

  chokecherry · Rosaceae
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  Prunus virginiana L. var. demissa (Nutt.) Torr. Native PRVID

  western chokecherry · Rosaceae
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  Pseudotsuga menziesii (Mirb.) Franco Native PSME

  Douglas-fir · Pinaceae
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  Pseudotsuga menziesii (Mirb.) Franco var. menziesii Native PSMEM

  Douglas-fir · Pinaceae
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  Psilocarphus elatior (A. Gray) A. Gray Native PSEL

  meadow woollyheads · Asteraceae
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  Pteridium aquilinum (L.) Kuhn Native PTAQ

  western brackenfern · Dennstaedtiaceae
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  Pteridium aquilinum (L.) Kuhn var. pubescens Underw. Native PTAQP2

  hairy brackenfern · Dennstaedtiaceae
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  Pterospora andromedea Nutt. Native PTAN2

  woodland pinedrops · Monotropaceae
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  Pueraria montana (Lour.) Merr. Introduced PUMO

  kudzu · Fabaceae
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  Pueraria montana (Lour.) Merr. var. lobata (Willd.) Maesen & S.M. Almeida ex Sanjappa & Predeep Introduced PUMOL

  kudzu · Fabaceae
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  Pulsatilla occidentalis (S. Watson) Freyn Native PUOC

  white pasqueflower · Ranunculaceae
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  Pyrola asarifolia Michx. Native PYAS

  liverleaf wintergreen · Pyrolaceae
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  Pyrola asarifolia Michx. ssp. asarifolia Native PYASA

  liverleaf wintergreen · Pyrolaceae
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  Pyrola asarifolia Michx. ssp. bracteata (Hook.) Haber Native PYASB2

  pink wintergreen · Pyrolaceae
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  Pyrola minor L. Native PYMI

  snowline wintergreen · Pyrolaceae
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  Pyrola picta Sm. Native PYPI2

  whiteveined wintergreen · Pyrolaceae