Washington

• Adams 53001
  571 taxa Open ↗
• Asotin 53003
  959 taxa Open ↗
• Benton 53005
  796 taxa Open ↗
• Chelan 53007
  1,875 taxa Open ↗
• Clallam 53009
  1,390 taxa Open ↗
• Clark 53011
  658 taxa Open ↗
• Columbia 53013
  1,183 taxa Open ↗
• Cowlitz 53015
  798 taxa Open ↗
• Douglas 53017
  679 taxa Open ↗
• Ferry 53019
  994 taxa Open ↗

Showing 2,851–2,900 of 4,423.

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  Osmorhiza occidentalis (Nutt. ex Torr. & A. Gray) Torr. Native OSOC

  western sweetroot · Apiaceae 15 counties
• 
  Osmorhiza purpurea (J.M. Coult. & Rose) Suksd. Native OSPU

  purple sweetroot · Apiaceae 18 counties
• 
  Oxalis corniculata L. Native OXCO

  creeping woodsorrel · Oxalidaceae 15 counties
• 
  Oxalis dillenii Jacq. Native OXDI2

  slender yellow woodsorrel · Oxalidaceae 4 counties
• 
  Oxalis oregana Nutt. Native OXOR

  redwood-sorrel · Oxalidaceae 13 counties
• 
  Oxalis stricta L. Native OXST

  common yellow oxalis · Oxalidaceae 7 counties
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  Oxalis suksdorfii Trel. Native OXSU

  Suksdorf woodsorrel · Oxalidaceae 4 counties
• 
  Oxalis trilliifolia Hook. Native OXTR

  threeleaf woodsorrel · Oxalidaceae 9 counties
• 
  Oxyria digyna (L.) Hill Native OXDI3

  alpine mountainsorrel · Polygonaceae 13 counties
• 
  Oxytheca dendroidea Nutt. Native OXDE

  narrowleaf oxytheca · Polygonaceae 4 counties
• 
  Oxytropis borealis DC. Native OXBO

  boreal locoweed · Fabaceae 1 county
• 
  Oxytropis borealis DC. var. viscida (Nutt.) S.L. Welsh Native OXBOV

  viscid locoweed · Fabaceae 1 county
• 
  Oxytropis campestris (L.) DC. Native OXCA4

  field locoweed · Fabaceae 5 counties
• 
  Oxytropis campestris (L.) DC. var. columbiana (H. St. John) Barneby Native OXCAC2

  field locoweed · Fabaceae 2 counties
• 
  Oxytropis campestris (L.) DC. var. cusickii (Greenm.) Barneby Native OXCAC3

  Cusick's locoweed · Fabaceae 2 counties
• 
  Oxytropis campestris (L.) DC. var. wanapum E. Joyal Native OXCAW

  field locoweed · Fabaceae 1 county
• 
  Oxytropis deflexa (Pall.) DC. Native OXDE2

  nodding locoweed · Fabaceae 1 county
• 
  Oxytropis deflexa (Pall.) DC. var. sericea Torr. & A. Gray Native OXDES

  blue nodding locoweed · Fabaceae 1 county
• ⚘
  Oxytropis monticola A. Gray Native OXMO2

  yellowflower locoweed · Fabaceae 8 counties
• 
  Packera bolanderi (A. Gray) W.A. Weber & Á. Löve Native PABO6

  Bolander's ragwort · Asteraceae 3 counties
• 
  Packera bolanderi (A. Gray) W.A. Weber & Á. Löve var. bolanderi Native PABOB

  Bolander's ragwort · Asteraceae 2 counties
• 
  Packera bolanderi (A. Gray) W.A. Weber & Á. Löve var. harfordii (Greenm.) D.K. Trock & T.M. Barkley Native PABOH

  Harford's ragwort · Asteraceae 1 county
• 
  Packera cana (Hook.) W.A. Weber & Á. Löve Native PACA15

  woolly groundsel · Asteraceae 12 counties
• 
  Packera cymbalaria (Pursh) W.A. Weber & Á. Löve Native PACY8

  dwarf arctic ragwort · Asteraceae 2 counties
• 
  Packera flettii (Wiegand) W.A. Weber & Á. Löve Native PAFL15

  Flett's ragwort · Asteraceae 7 counties
• 
  Packera indecora (Greene) Á. Löve & D. Löve Native PAIN11

  elegant groundsel · Asteraceae 6 counties
• 
  Packera macounii (Greene) W.A. Weber & Á. Löve Native PAMA35

  Siskiyou Mountain ragwort · Asteraceae 6 counties
• 
  Packera pauciflora (Pursh) Á. Löve & D. Löve Native PAPA19

  alpine groundsel · Asteraceae 5 counties
• 
  Packera paupercula (Michx.) Á. Löve & D. Löve Native PAPA20

  balsam groundsel · Asteraceae 7 counties
• 
  Packera pseudaurea (Rydb.) W.A. Weber & Á. Löve Native PAPS5

  falsegold groundsel · Asteraceae 10 counties
• 
  Packera pseudaurea (Rydb.) W.A. Weber & Á. Löve var. pseudaurea Native PAPSP2

  falsegold groundsel · Asteraceae 10 counties
• 
  Packera streptanthifolia (Greene) W.A. Weber & Á. Löve Native PAST10

  Rocky Mountain groundsel · Asteraceae 11 counties
• 
  Packera subnuda (DC.) D.K. Trock & T.M. Barkley Native PASU40

  Buek's groundsel · Asteraceae 6 counties
• 
  Paeonia brownii Douglas ex Hook. Native PABR

  Brown's peony · Paeoniaceae 8 counties
• 
  Panicum capillare L. Native PACA6

  witchgrass · Poaceae 18 counties
• 
  Panicum dichotomiflorum Michx. Native PADI

  fall panicgrass · Poaceae 3 counties
• 
  Panicum dichotomiflorum Michx. var. dichotomiflorum Native PADID

  fall panicgrass · Poaceae 3 counties
• 
  Panicum hirticaule J. Presl Native PAHI5

  Mexican panicgrass · Poaceae 1 county
• 
  Panicum hirticaule J. Presl var. hirticaule Native PAHIH

  Mexican panicgrass · Poaceae 1 county
• 
  Panicum miliaceum L. Introduced PAMI2

  proso millet · Poaceae 14 counties
• 
  Panicum miliaceum L. ssp. miliaceum Introduced PAMIM

  broomcorn millet · Poaceae 14 counties
• 
  Papaver argemone L. Introduced PAAR3

  long pricklyhead poppy · Papaveraceae 8 counties
• 
  Papaver dubium L. Introduced PADU

  blindeyes · Papaveraceae 2 counties
• 
  Papaver rhoeas L. Introduced PARH2

  corn poppy · Papaveraceae 7 counties
• 
  Papaver somniferum L. Introduced PASO2

  opium poppy · Papaveraceae 8 counties
• 
  Parentucellia viscosa (L.) Caruel Introduced PAVI3

  yellow glandweed · Scrophulariaceae 15 counties
• 
  Parietaria judaica L. Introduced PAJU

  spreading pellitory · Urticaceae 1 county
• 
  Parietaria officinalis L. Introduced PAOF

  upright pellitory · Urticaceae 1 county
• 
  Parietaria pensylvanica Muhl. ex Willd. Native PAPE5

  Pennsylvania pellitory · Urticaceae 8 counties
• 
  Parnassia fimbriata K.D. Koenig Native PAFI3

  fringed grass of Parnassus · Saxifragaceae 15 counties