Washington County

Showing 351–400 of 533.

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  Phalaris arundinacea L. Native PHAR3

  reed canarygrass · Poaceae
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  Phlox divaricata L. Native PHDI5

  wild blue phlox · Polemoniaceae
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  Phlox divaricata L. ssp. laphamii (Alph. Wood) Wherry Native PHDIL6

  Lapham's phlox · Polemoniaceae
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  Phryma leptostachya L. Native PHLE5

  American lopseed · Verbenaceae
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  Phyla lanceolata (Michx.) Greene Native PHLA3

  lanceleaf fogfruit · Verbenaceae
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  Physostegia virginiana (L.) Benth. Native PHVI8

  obedient plant · Lamiaceae
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  Pilea pumila (L.) A. Gray Native PIPU2

  Canadian clearweed · Urticaceae
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  Pilea pumila (L.) A. Gray var. pumila Native PIPUP

  Canadian clearweed · Urticaceae
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  Plantago major L. Introduced PLMA2

  common plantain · Plantaginaceae
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  Plantago rugelii Decne. Native PLRU

  blackseed plantain · Plantaginaceae
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  Plantago rugelii Decne. var. rugelii Native PLRUR

  blackseed plantain · Plantaginaceae
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  Platanus occidentalis L. Native PLOC

  American sycamore · Platanaceae
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  Poa pratensis L. Both POPR

  Kentucky bluegrass · Poaceae
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  Poa pratensis L. ssp. pratensis Introduced POPRP2

  Kentucky bluegrass · Poaceae
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  Polygala sanguinea L. Native POSA3

  purple milkwort · Polygalaceae
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  Polygonatum biflorum (Walter) Elliott Native POBI2

  smooth Solomon's seal · Liliaceae
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  Polygonatum biflorum (Walter) Elliott var. commutatum (Schult. & Schult. f.) Morong Native POBIC

  smooth Solomon's seal · Liliaceae
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  Polygonum achoreum S.F. Blake Native POAC3

  leathery knotweed · Polygonaceae
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  Polygonum amphibium L. Native POAM8

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

  longroot smartweed · Polygonaceae
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  Polygonum arenastrum Jord. ex Boreau Introduced POAR11

  oval-leaf knotweed · Polygonaceae
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  Polygonum convolvulus L. Introduced POCO10

  black bindweed · Polygonaceae
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  Polygonum convolvulus L. var. convolvulus Introduced POCOC2

  black bindweed · Polygonaceae
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  Polygonum hydropiper L. Introduced POHY

  marshpepper knotweed · Polygonaceae
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  Polygonum lapathifolium L. Native POLA4

  curlytop knotweed · Polygonaceae
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  Polygonum pensylvanicum L. Native POPE2

  Pennsylvania smartweed · Polygonaceae
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  Polygonum ramosissimum Michx. Native PORA3

  bushy knotweed · Polygonaceae
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  Polygonum scandens L. Both POSC3

  climbing false buckwheat · Polygonaceae
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  Polygonum scandens L. var. scandens Native POSCS

  climbing false buckwheat · Polygonaceae
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  Polystichum acrostichoides (Michx.) Schott Native POAC4

  Christmas fern · Dryopteridaceae
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  Polystichum acrostichoides (Michx.) Schott var. acrostichoides Native POACA

  Christmas fern · Dryopteridaceae
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  Populus deltoides W. Bartram ex Marshall Native PODE3

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

  plains cottonwood · Salicaceae
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  Populus tremuloides Michx. Native POTR5

  quaking aspen · Salicaceae
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  Potentilla norvegica L. Native PONO3

  Norwegian cinquefoil · Rosaceae
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  Potentilla norvegica L. ssp. monspeliensis (L.) Asch. & Graebn. Native PONOM

  Norwegian cinquefoil · Rosaceae
• ⚘
  Potentilla paradoxa Nutt. Native POPA15

  Paradox cinquefoil · Rosaceae
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  Potentilla recta L. Introduced PORE5

  sulphur cinquefoil · Rosaceae
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  Potentilla rivalis Nutt. Native PORI3

  brook cinquefoil · Rosaceae
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  Prunella vulgaris L. Native PRVU

  common selfheal · Lamiaceae
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  Prunus americana Marshall Native PRAM

  American plum · Rosaceae
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  Prunus mexicana S. Watson Native PRME

  Mexican plum · Rosaceae
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  Prunus virginiana L. Native PRVI

  chokecherry · Rosaceae
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  Pseudognaphalium obtusifolium (L.) Hilliard & B.L. Burtt Native PSOB3

  rabbit-tobacco · Asteraceae
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  Pseudognaphalium obtusifolium (L.) Hilliard & B.L. Burtt ssp. obtusifolium Native PSOBO

  rabbit-tobacco · Asteraceae
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  Quercus macrocarpa Michx. Native QUMA2

  bur oak · Fagaceae
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  Quercus macrocarpa Michx. var. macrocarpa Native QUMAM

  bur oak · Fagaceae
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  Quercus rubra L. Native QURU

  northern red oak · Fagaceae
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  Quercus rubra L. var. rubra Native QURUR

  northern red oak · Fagaceae
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  Quercus velutina Lam. Native QUVE

  black oak · Fagaceae