York County

Showing 1,001–1,050 of 1,545.

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  Platanthera blephariglottis (Willd.) Lindl. Native PLBL

  white fringed orchid · Orchidaceae
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  Platanthera blephariglottis (Willd.) Lindl. var. blephariglottis Native PLBLB

  white fringed orchid · Orchidaceae
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  Platanthera clavellata (Michx.) Luer Native PLCL

  small green wood orchid · Orchidaceae
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  Platanthera flava (L.) Lindl. Native PLFL

  palegreen orchid · Orchidaceae
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  Platanthera flava (L.) Lindl. var. herbiola (R. Br.) Luer Native PLFLH

  palegreen orchid · Orchidaceae
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  Platanthera grandiflora (Bigelow) Lindl. Native PLGR2

  greater purple fringed orchid · Orchidaceae
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  Platanthera grandiflora × psycodes [unnamed hybrid] Native PLGR12

  Orchidaceae
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  Platanthera hookeri (Torr. ex A. Gray) Lindl. Native PLHO3

  Hooker's orchid · Orchidaceae
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  Platanthera huronensis (Nutt.) Lindl. Native PLHU2

  Huron green orchid · Orchidaceae
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  Platanthera lacera (Michx.) G. Don Native PLLA2

  green fringed orchid · Orchidaceae
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  Platanthera orbiculata (Pursh) Lindl. Native PLOR4

  lesser roundleaved orchid · Orchidaceae
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  Platanthera psycodes (L.) Lindl. Native PLPS2

  lesser purple fringed orchid · Orchidaceae
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  Poa annua L. Introduced POAN

  annual bluegrass · Poaceae
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  Poa compressa L. Introduced POCO

  Canada bluegrass · Poaceae
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  Poa palustris L. Native POPA2

  fowl bluegrass · Poaceae
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  Poa pratensis L. Both POPR

  Kentucky bluegrass · Poaceae
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  Poa trivialis L. Introduced POTR2

  rough bluegrass · Poaceae
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  Podophyllum peltatum L. Native POPE

  mayapple · Berberidaceae
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  Pogonia ophioglossoides (L.) Ker Gawl. Native POOP

  snakemouth orchid · Orchidaceae
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  Polygala cruciata L. Native POCR

  drumheads · Polygalaceae
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  Polygala cruciata L. var. aquilonia Fernald & B.G. Schub. Native POCRA

  drumheads · Polygalaceae
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  Polygala paucifolia Willd. Native POPA5

  gaywings · Polygalaceae
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  Polygala polygama Walter Native POPO

  racemed milkwort · Polygalaceae
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  Polygala sanguinea L. Native POSA3

  purple milkwort · Polygalaceae
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  Polygala verticillata L. Native POVE

  whorled milkwort · Polygalaceae
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  Polygonatum pubescens (Willd.) Pursh Native POPU4

  hairy Solomon's seal · Liliaceae
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  Polygonella articulata (L.) Meisn. Native POAR4

  coastal jointweed · Polygonaceae
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  Polygonum amphibium L. Native POAM8

  water knotweed · Polygonaceae
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  Polygonum arifolium L. Native POAR6

  halberdleaf tearthumb · Polygonaceae
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  Polygonum aviculare L. Introduced POAV

  prostrate knotweed · Polygonaceae
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  Polygonum careyi Olney Native POCA8

  Carey's smartweed · Polygonaceae
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  Polygonum cilinode Michx. Native POCI

  fringed black bindweed · Polygonaceae
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  Polygonum convolvulus L. Introduced POCO10

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

  Japanese knotweed · Polygonaceae
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  Polygonum douglasii Greene Native PODO4

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

  Douglas' knotweed · Polygonaceae
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  Polygonum erectum L. Native POER2

  erect knotweed · Polygonaceae
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  Polygonum hydropiper L. Introduced POHY

  marshpepper knotweed · Polygonaceae
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  Polygonum hydropiperoides Michx. Native POHY2

  swamp smartweed · 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 persicaria L. Introduced POPE3

  spotted ladysthumb · Polygonaceae
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  Polygonum punctatum Elliott Native POPU5

  dotted smartweed · Polygonaceae
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  Polygonum ramosissimum Michx. Native PORA3

  bushy knotweed · Polygonaceae
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  Polygonum ramosissimum Michx. var. ramosissimum Native PORAR

  bushy knotweed · Polygonaceae
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  Polygonum sagittatum L. Native POSA5

  arrowleaf tearthumb · Polygonaceae
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  Polygonum tenue Michx. Native POTE2

  pleatleaf knotweed · Polygonaceae
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  Polypodium virginianum L. Native POVI7

  rock polypody · Polypodiaceae
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  Polypogon monspeliensis (L.) Desf. Introduced POMO5

  annual rabbitsfoot grass · Poaceae
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  Polystichum acrostichoides (Michx.) Schott Native POAC4

  Christmas fern · Dryopteridaceae