Oregon

• Baker 41001
  1,572 taxa Open ↗
• Benton 41003
  1,855 taxa Open ↗
• Clackamas 41005
  1,485 taxa Open ↗
• Clatsop 41007
  979 taxa Open ↗
• Columbia 41009
  1,183 taxa Open ↗
• Coos 41011
  1,238 taxa Open ↗
• Crook 41013
  1,354 taxa Open ↗
• Curry 41015
  1,738 taxa Open ↗
• Deschutes 41017
  1,482 taxa Open ↗
• Douglas 41019
  2,250 taxa Open ↗

Showing 301–350 of 4,583 (native).

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  Arceuthobium tsugense (Rosend.) G.N. Jones Native ARTS

  hemlock dwarf mistletoe · Viscaceae 8 counties
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  Arceuthobium tsugense (Rosend.) G.N. Jones ssp. mertensianae Hawksw. & Nickrent Native ARTSM2

  hemlock dwarf mistletoe · Viscaceae 1 county
• 
  Arceuthobium tsugense (Rosend.) G.N. Jones ssp. tsugense Native ARTST2

  hemlock dwarf mistletoe · Viscaceae 2 counties
• 
  Arctostaphylos canescens Eastw. Native ARCA5

  hoary manzanita · Ericaceae 5 counties
• 
  Arctostaphylos canescens Eastw. ssp. canescens Native ARCAC7

  hoary manzanita · Ericaceae 5 counties
• 
  Arctostaphylos columbiana Piper Native ARCO3

  hairy manzanita · Ericaceae 14 counties
• 
  Arctostaphylos glandulosa Eastw. Native ARGL3

  Eastwood's manzanita · Ericaceae 5 counties
• 
  Arctostaphylos glandulosa Eastw. ssp. glandulosa Native ARGLG3

  Eastwood's manzanita · Ericaceae 5 counties
• 
  Arctostaphylos hispidula Howell Native ARHI5

  Gasquet manzanita · Ericaceae 3 counties
• 
  Arctostaphylos nevadensis A. Gray Native ARNE

  pinemat manzanita · Ericaceae 23 counties
• 
  Arctostaphylos patula Greene Native ARPA6

  greenleaf manzanita · Ericaceae 16 counties
• 
  Arctostaphylos uva-ursi (L.) Spreng. Native ARUV

  kinnikinnick · Ericaceae 19 counties
• 
  Arctostaphylos viscida Parry Native ARVI4

  sticky whiteleaf manzanita · Ericaceae 5 counties
• 
  Arctostaphylos viscida Parry ssp. pulchella (Howell) P.V. Wells Native ARVIP2

  sticky whiteleaf manzanita · Ericaceae 1 county
• ⚘
  Arctostaphylos ×cinerea Howell (pro sp.) [canescens × viscida] Native ARCI

  Waldo manzanita · Ericaceae 3 counties
• ⚘
  Arctostaphylos ×parvifolia Howell (pro sp.) [glandulosa × nevadensis] Native ARPA5

  small-leaf manzanita · Ericaceae 2 counties
• 
  Arenaria aculeata S. Watson Native ARAC2

  prickly sandwort · Caryophyllaceae 9 counties
• 
  Arenaria capillaris Poir. Native ARCA7

  slender mountain sandwort · Caryophyllaceae 22 counties
• 
  Arenaria capillaris Poir. ssp. americana Maguire Native ARCAA

  fescue sandwort · Caryophyllaceae 22 counties
• 
  Arenaria congesta Nutt. Native ARCO5

  ballhead sandwort · Caryophyllaceae 17 counties
• 
  Arenaria congesta Nutt. var. cephaloidea (Rydb.) Maguire Native ARCOC

  sharptip sandwort · Caryophyllaceae 4 counties
• 
  Arenaria congesta Nutt. var. congesta Native ARCOC4

  ballhead sandwort · Caryophyllaceae 12 counties
• 
  Arenaria congesta Nutt. var. crassula Maguire Native ARCOC3

  ballhead sandwort · Caryophyllaceae 2 counties
• 
  Arenaria congesta Nutt. var. glandulifera Maguire Native ARCOG

  gland sandwort · Caryophyllaceae 1 county
• 
  Arenaria congesta Nutt. var. prolifera Maguire Native ARCOP

  ballhead sandwort · Caryophyllaceae 3 counties
• 
  Arenaria congesta Nutt. var. suffrutescens (A. Gray) B.L. Rob. Native ARCOS3

  suffrutescent sandwort · Caryophyllaceae 2 counties
• 
  Arenaria franklinii Douglas ex Hook. Native ARFR

  Franklin's sandwort · Caryophyllaceae 14 counties
• 
  Arenaria franklinii Douglas ex Hook. var. franklinii Native ARFRF2

  Franklin's sandwort · Caryophyllaceae 11 counties
• 
  Arenaria franklinii Douglas ex Hook. var. thompsonii M. Peck Native ARFRT

  Thompson's sandwort · Caryophyllaceae 4 counties
• 
  Arenaria kingii (S. Watson) M.E. Jones Native ARKI

  King's sandwort · Caryophyllaceae 6 counties
• 
  Arenaria kingii (S. Watson) M.E. Jones ssp. compacta (Coville) Maguire Native ARKIC

  King's compact sandwort · Caryophyllaceae 6 counties
• 
  Arenaria pumicola Coville & Leiberg Native ARPU6

  Crater Lake sandwort · Caryophyllaceae 8 counties
• 
  Argemone munita Durand & Hilg. Native ARMU

  flatbud pricklypoppy · Papaveraceae 2 counties
• 
  Argemone munita Durand & Hilg. ssp. rotundata (Rydb.) G.B. Ownbey Native ARMUR

  flatbud pricklypoppy · Papaveraceae 2 counties
• 
  Argentina anserina (L.) Rydb. Native ARAN7

  silverweed cinquefoil · Rosaceae 12 counties
• ⚘
  Argentina egedii (Wormsk.) Rydb. Native AREG

  Pacific silverweed · Rosaceae 9 counties
• ⚘
  Argentina egedii (Wormsk.) Rydb. ssp. egedii Native AREGE

  Pacific silverweed · Rosaceae 9 counties
• 
  Aristida oligantha Michx. Native AROL

  prairie threeawn · Poaceae 7 counties
• 
  Aristida purpurea Nutt. Native ARPU9

  purple threeawn · Poaceae 3 counties
• 
  Aristida purpurea Nutt. var. longiseta (Steud.) Vasey Native ARPUL

  Fendler threeawn · Poaceae 3 counties
• 
  Armeria maritima (Mill.) Willd. Native ARMA6

  thrift seapink · Plumbaginaceae 6 counties
• 
  Armeria maritima (Mill.) Willd. ssp. californica (Boiss.) A.E. Porsild Native ARMAC2

  California seapink · Plumbaginaceae 6 counties
• ⚘
  Arnica amplexicaulis Nutt. Native ARAM2

  clasping arnica · Asteraceae 23 counties
• 
  Arnica cernua Howell Native ARCE

  serpentine arnica · Asteraceae 3 counties
• 
  Arnica chamissonis Less. Native ARCH3

  Chamisso arnica · Asteraceae 16 counties
• 
  Arnica chamissonis Less. ssp. foliosa (Nutt.) Maguire Native ARCHF

  Chamisso arnica · Asteraceae 16 counties
• 
  Arnica chamissonis Less. ssp. foliosa (Nutt.) Maguire var. incana (A. Gray) Hultén Native ARCHI4

  Chamisso arnica · Asteraceae 7 counties
• 
  Arnica cordifolia Hook. Native ARCO9

  heartleaf arnica · Asteraceae 27 counties
• 
  Arnica discoidea Benth. Native ARDI6

  rayless arnica · Asteraceae 14 counties
• 
  Arnica fulgens Pursh Native ARFU3

  foothill arnica · Asteraceae 6 counties