Montana

• Beaverhead 30001
  755 taxa Open ↗
• Big Horn 30003
  565 taxa Open ↗
• Blaine 30005
  333 taxa Open ↗
• Broadwater 30007
  359 taxa Open ↗
• Carbon 30009
  749 taxa Open ↗
• Carter 30011
  454 taxa Open ↗
• Cascade 30013
  768 taxa Open ↗
• Chouteau 30015
  423 taxa Open ↗
• Custer 30017
  458 taxa Open ↗
• Daniels 30019
  384 taxa Open ↗

Showing 401–450 of 465 (introduced).

• 
  Sonchus asper (L.) Hill Introduced SOAS

  spiny sowthistle · Asteraceae 32 counties
• 
  Sonchus oleraceus L. Introduced SOOL

  common sowthistle · Asteraceae 17 counties
• 
  Sorbus aucuparia L. Introduced SOAU

  European mountain ash · Rosaceae 2 counties
• 
  Sorghum bicolor (L.) Moench Introduced SOBI2

  sorghum · Poaceae 1 county
• 
  Sorghum bicolor (L.) Moench ssp. bicolor Introduced SOBIB

  grain sorghum · Poaceae 1 county
• 
  Sorghum halepense (L.) Pers. Introduced SOHA

  Johnsongrass · Poaceae 3 counties
• 
  Spergula arvensis L. Introduced SPAR

  corn spurry · Caryophyllaceae 10 counties
• 
  Spergularia maritima (All.) Chiov. Introduced SPMA10

  media sandspurry · Caryophyllaceae 2 counties
• 
  Spergularia rubra (L.) J. Presl & C. Presl Introduced SPRU

  red sandspurry · Caryophyllaceae 17 counties
• 
  Sphaerophysa salsula (Pall.) DC. Introduced SPSA3

  alkali swainsonpea · Fabaceae 6 counties
• 
  Stellaria graminea L. Introduced STGR

  grass-like starwort · Caryophyllaceae 3 counties
• 
  Stellaria media (L.) Vill. Introduced STME2

  common chickweed · Caryophyllaceae 54 counties
• 
  Stellaria media (L.) Vill. ssp. media Introduced STMEM

  common chickweed · Caryophyllaceae 54 counties
• 
  Symphytum officinale L. Introduced SYOF

  common comfrey · Boraginaceae 6 counties
• 
  Tamarix chinensis Lour. Introduced TACH2

  five-stamen tamarisk · Tamaricaceae 1 county
• 
  Tamarix ramosissima Ledeb. Introduced TARA

  saltcedar · Tamaricaceae 1 county
• 
  Tanacetum balsamita L. Introduced TABA

  costmary · Asteraceae 6 counties
• 
  Tanacetum parthenium (L.) Sch. Bip. Introduced TAPA6

  feverfew · Asteraceae 4 counties
• 
  Tanacetum vulgare L. Introduced TAVU

  common tansy · Asteraceae 36 counties
• 
  Taraxacum laevigatum (Willd.) DC. Introduced TALA2

  rock dandelion · Asteraceae 31 counties
• 
  Taraxacum officinale F.H. Wigg. ssp. officinale Introduced TAOFO

  common dandelion · Asteraceae 1 county
• 
  Thinopyrum intermedium (Host) Barkworth & D.R. Dewey Introduced THIN6

  intermediate wheatgrass · Poaceae 28 counties
• 
  Thinopyrum ponticum (Podp.) Z.-W. Liu & R.-C. Wang Introduced THPO7

  tall wheatgrass · Poaceae 12 counties
• 
  Thlaspi arvense L. Introduced THAR5

  field pennycress · Brassicaceae 56 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
• 
  Tragopogon dubius Scop. Introduced TRDU

  yellow salsify · Asteraceae 56 counties
• ⚘
  Tragopogon miscellus Ownbey Introduced TRMI8

  Moscow salsify · Asteraceae 3 counties
• 
  Tragopogon porrifolius L. Introduced TRPO

  salsify · Asteraceae 10 counties
• 
  Tragopogon pratensis L. Introduced TRPR

  Jack-go-to-bed-at-noon · Asteraceae 22 counties
• 
  Tribulus terrestris L. Introduced TRTE

  puncturevine · Zygophyllaceae 7 counties
• 
  Trifolium arvense L. Introduced TRAR4

  rabbitfoot clover · Fabaceae 6 counties
• 
  Trifolium aureum Pollich Introduced TRAU2

  golden clover · Fabaceae 15 counties
• 
  Trifolium campestre Schreb. Introduced TRCA5

  field clover · Fabaceae 7 counties
• 
  Trifolium dubium Sibth. Introduced TRDU2

  suckling clover · Fabaceae 14 counties
• 
  Trifolium fragiferum L. Introduced TRFR2

  strawberry clover · Fabaceae 6 counties
• 
  Trifolium hybridum L. Introduced TRHY

  alsike clover · Fabaceae 27 counties
• 
  Trifolium pratense L. Introduced TRPR2

  red clover · Fabaceae 41 counties
• 
  Trifolium repens L. Introduced TRRE3

  white clover · Fabaceae 44 counties
• 
  Tripleurospermum perforatum (Mérat) M. Lainz Introduced TRPE21

  scentless false mayweed · Asteraceae 4 counties
• 
  Triticum aestivum L. Introduced TRAE

  common wheat · Poaceae 12 counties
• 
  Ulmus pumila L. Introduced ULPU

  Siberian elm · Ulmaceae 5 counties
• 
  Vaccaria hispanica (Mill.) Rauschert Introduced VAHI2

  cow soapwort · Caryophyllaceae 42 counties
• 
  Valeriana officinalis L. Introduced VAOF

  garden valerian · Valerianaceae 3 counties
• 
  Valerianella locusta (L.) Lat. Introduced VALO

  Lewiston cornsalad · Valerianaceae 1 county
• 
  Verbascum blattaria L. Introduced VEBL

  moth mullein · Scrophulariaceae 9 counties
• 
  Verbascum thapsus L. Introduced VETH

  common mullein · Scrophulariaceae 37 counties
• 
  Veronica arvensis L. Introduced VEAR

  corn speedwell · Scrophulariaceae 9 counties
• 
  Veronica biloba L. Introduced VEBI2

  twolobe speedwell · Scrophulariaceae 9 counties
• 
  Veronica chamaedrys L. Introduced VECH

  germander speedwell · Scrophulariaceae 3 counties