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 2,851–2,900 of 3,215.

• 
  Solidago velutina DC. Native SOVE6

  threenerve goldenrod · Asteraceae 2 counties
• 
  Sonchus arvensis L. Introduced SOAR2

  field sowthistle · Asteraceae 45 counties
• 
  Sonchus arvensis L. ssp. uliginosus (M. Bieb.) Nyman Introduced SOARU

  moist sowthistle · Asteraceae 17 counties
• 
  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
• 
  Sorbus scopulina Greene Native SOSC2

  Greene's mountain ash · Rosaceae 20 counties
• 
  Sorbus scopulina Greene var. scopulina Native SOSCS

  Greene's mountain ash · Rosaceae 20 counties
• 
  Sorbus sitchensis M. Roem. Native SOSI2

  western mountain ash · Rosaceae 1 county
• 
  Sorbus sitchensis M. Roem. var. sitchensis Native SOSIS2

  Sitka mountain ash · Rosaceae 1 county
• 
  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
• 
  Sparganium androcladum (Engelm.) Morong Native SPAN

  branched bur-reed · Sparganiaceae 1 county
• 
  Sparganium angustifolium Michx. Native SPAN2

  narrowleaf bur-reed · Sparganiaceae 8 counties
• 
  Sparganium eurycarpum Engelm. Native SPEU

  broadfruit bur-reed · Sparganiaceae 3 counties
• 
  Sparganium natans L. Native SPNA

  small bur-reed · Sparganiaceae 2 counties
• 
  Spartina gracilis Trin. Native SPGR

  alkali cordgrass · Poaceae 11 counties
• 
  Spartina pectinata Bosc ex Link Native SPPE

  prairie cordgrass · Poaceae 10 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
• 
  Spergularia salina J. Presl & C. Presl Native SPSA5

  salt sandspurry · Caryophyllaceae 6 counties
• 
  Sphaeralcea coccinea (Nutt.) Rydb. Native SPCO

  scarlet globemallow · Malvaceae 51 counties
• 
  Sphaeralcea coccinea (Nutt.) Rydb. ssp. coccinea Native SPCOC

  scarlet globemallow · Malvaceae 51 counties
• 
  Sphaeromeria capitata Nutt. Native SPCA8

  rock tansy · Asteraceae 1 county
• 
  Sphaerophysa salsula (Pall.) DC. Introduced SPSA3

  alkali swainsonpea · Fabaceae 6 counties
• 
  Sphenopholis intermedia (Rydb.) Rydb. Native SPIN3

  slender wedgescale · Poaceae 2 counties
• 
  Sphenopholis obtusata (Michx.) Scribn. Native SPOB

  prairie wedgescale · Poaceae 5 counties
• 
  Spiraea douglasii Hook. Native SPDO

  rose spirea · Rosaceae 5 counties
• 
  Spiraea douglasii Hook. var. menziesii (Hook.) C. Presl Native SPDOM

  Menzies' spirea · Rosaceae 5 counties
• 
  Spiraea lucida Douglas ex Greene Native SPLU5

  shinyleaf spirea · Rosaceae 26 counties
• 
  Spiraea splendens Baumann ex K. Koch Native SPSP2

  rose meadowsweet · Rosaceae 7 counties
• 
  Spiraea splendens Baumann ex K. Koch var. splendens Native SPSPS

  rose meadowsweet · Rosaceae 7 counties
• 
  Spiranthes romanzoffiana Cham. Native SPRO

  hooded lady's tresses · Orchidaceae 2 counties
• 
  Spirodela polyrrhiza (L.) Schleid. Native SPPO

  common duckmeat · Lemnaceae 1 county
• 
  Sporobolus airoides (Torr.) Torr. Native SPAI

  alkali sacaton · Poaceae 7 counties
• 
  Sporobolus cryptandrus (Torr.) A. Gray Native SPCR

  sand dropseed · Poaceae 12 counties
• 
  Sporobolus neglectus Nash Native SPNE2

  puffsheath dropseed · Poaceae 1 county
• 
  Stachys pilosa Nutt. Native STPI6

  hairy hedgenettle · Lamiaceae 17 counties
• 
  Stachys pilosa Nutt. var. pilosa Native STPIP5

  hairy hedgenettle · Lamiaceae 17 counties
• 
  Stanleya pinnata (Pursh) Britton Native STPI

  desert princesplume · Brassicaceae 9 counties
• 
  Stanleya pinnata (Pursh) Britton var. pinnata Native STPIP

  desert princesplume · Brassicaceae 9 counties
• 
  Stanleya tomentosa Parry Native STTO

  woolly princesplume · Brassicaceae 1 county
• 
  Stanleya tomentosa Parry var. tomentosa Native STTOT

  woolly princesplume · Brassicaceae 1 county
• 
  Stanleya viridiflora Nutt. Native STVI

  green princesplume · Brassicaceae 1 county
• 
  Stellaria americana (Porter ex B.L. Rob.) Standl. Native STAM

  American chickweed · Caryophyllaceae 4 counties
• 
  Stellaria borealis Bigelow Native STBO3

  boreal starwort · Caryophyllaceae 1 county
• 
  Stellaria borealis Bigelow ssp. borealis Native STBOB

  boreal starwort · Caryophyllaceae 1 county
• 
  Stellaria calycantha (Ledeb.) Bong. Native STCA

  northern starwort · Caryophyllaceae 8 counties