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 801–850 of 901 (introduced).

• 
  Spergularia villosa (Pers.) Camb. Introduced SPVI

  hairy sandspurry · Caryophyllaceae 1 county
• 
  Sphaerophysa salsula (Pall.) DC. Introduced SPSA3

  alkali swainsonpea · Fabaceae 4 counties
• 
  Sporobolus indicus (L.) R. Br. Introduced SPIN4

  smut grass · Poaceae 1 county
• 
  Sporobolus indicus (L.) R. Br. var. indicus Introduced SPINI2

  smut grass · Poaceae 1 county
• 
  Stellaria graminea L. Introduced STGR

  grass-like starwort · Caryophyllaceae 8 counties
• 
  Stellaria media (L.) Vill. Introduced STME2

  common chickweed · Caryophyllaceae 26 counties
• 
  Stellaria media (L.) Vill. ssp. media Introduced STMEM

  common chickweed · Caryophyllaceae 26 counties
• 
  Symphytum officinale L. Introduced SYOF

  common comfrey · Boraginaceae 11 counties
• 
  Syringa vulgaris L. Introduced SYVU

  common lilac · Oleaceae 4 counties
• 
  Taeniatherum caput-medusae (L.) Nevski Introduced TACA8

  medusahead · Poaceae 24 counties
• 
  Tamarix chinensis Lour. Introduced TACH2

  five-stamen tamarisk · Tamaricaceae 1 county
• 
  Tamarix parviflora DC. Introduced TAPA4

  smallflower tamarisk · Tamaricaceae 2 counties
• 
  Tanacetum balsamita L. Introduced TABA

  costmary · Asteraceae 7 counties
• 
  Tanacetum corymbosum (L.) Sch. Bip. Introduced TACO5

  corymbflower tansy · Asteraceae 1 county
• 
  Tanacetum parthenium (L.) Sch. Bip. Introduced TAPA6

  feverfew · Asteraceae 10 counties
• 
  Tanacetum vulgare L. Introduced TAVU

  common tansy · Asteraceae 21 counties
• 
  Taraxacum laevigatum (Willd.) DC. Introduced TALA2

  rock dandelion · Asteraceae 6 counties
• 
  Teesdalia nudicaulis (L.) W.T. Aiton Introduced TENU

  barestem teesdalia · Brassicaceae 8 counties
• 
  Thinopyrum intermedium (Host) Barkworth & D.R. Dewey Introduced THIN6

  intermediate wheatgrass · Poaceae 22 counties
• 
  Thinopyrum ponticum (Podp.) Z.-W. Liu & R.-C. Wang Introduced THPO7

  tall wheatgrass · Poaceae 11 counties
• 
  Thinopyrum pycnanthum (Godr.) Barkworth Introduced THPY4

  tick quackgrass · Poaceae 1 county
• 
  Thlaspi arvense L. Introduced THAR5

  field pennycress · Brassicaceae 23 counties
• 
  Thymus praecox Opiz Introduced THPR

  mother of thyme · Lamiaceae 2 counties
• 
  Thymus praecox Opiz ssp. arcticus (Durand) Jalas Introduced THPRA

  creeping thyme · Lamiaceae 2 counties
• 
  Torilis arvensis (Huds.) Link Introduced TOAR

  spreading hedgeparsley · Apiaceae 14 counties
• 
  Torilis japonica (Houtt.) DC. Introduced TOJA

  erect hedgeparsley · Apiaceae 3 counties
• 
  Torilis nodosa (L.) Gaertn. Introduced TONO

  knotted hedgeparsley · Apiaceae 5 counties
• 
  Tragopogon dubius Scop. Introduced TRDU

  yellow salsify · Asteraceae 27 counties
• 
  Tragopogon porrifolius L. Introduced TRPO

  salsify · Asteraceae 19 counties
• 
  Tragopogon pratensis L. Introduced TRPR

  Jack-go-to-bed-at-noon · Asteraceae 15 counties
• 
  Tribulus terrestris L. Introduced TRTE

  puncturevine · Zygophyllaceae 22 counties
• 
  Trifolium angustifolium L. Introduced TRAN6

  narrowleaf crimson clover · Fabaceae 2 counties
• 
  Trifolium arvense L. Introduced TRAR4

  rabbitfoot clover · Fabaceae 16 counties
• 
  Trifolium aureum Pollich Introduced TRAU2

  golden clover · Fabaceae 5 counties
• 
  Trifolium campestre Schreb. Introduced TRCA5

  field clover · Fabaceae 19 counties
• 
  Trifolium dubium Sibth. Introduced TRDU2

  suckling clover · Fabaceae 27 counties
• 
  Trifolium fragiferum L. Introduced TRFR2

  strawberry clover · Fabaceae 6 counties
• 
  Trifolium glomeratum L. Introduced TRGL4

  clustered clover · Fabaceae 3 counties
• 
  Trifolium hirtum All. Introduced TRHI4

  rose clover · Fabaceae 1 county
• 
  Trifolium hybridum L. Introduced TRHY

  alsike clover · Fabaceae 22 counties
• 
  Trifolium incarnatum L. Introduced TRIN3

  crimson clover · Fabaceae 12 counties
• 
  Trifolium pratense L. Introduced TRPR2

  red clover · Fabaceae 26 counties
• 
  Trifolium repens L. Introduced TRRE3

  white clover · Fabaceae 33 counties
• 
  Trifolium resupinatum L. Introduced TRRE4

  reversed clover · Fabaceae 1 county
• 
  Trifolium retusum L. Introduced TRRE10

  teasel clover · Fabaceae 1 county
• 
  Trifolium striatum L. Introduced TRST5

  knotted clover · Fabaceae 5 counties
• 
  Trifolium subterraneum L. Introduced TRSU3

  subterranean clover · Fabaceae 13 counties
• 
  Trifolium vesiculosum Savi Introduced TRVE

  arrowleaf clover · Fabaceae 7 counties
• 
  Triticum aestivum L. Introduced TRAE

  common wheat · Poaceae 15 counties
• 
  Ulex europaeus L. Introduced ULEU

  common gorse · Fabaceae 13 counties