Iowa

• Adair 19001
  393 taxa Open ↗
• Adams 19003
  200 taxa Open ↗
• Allamakee 19005
  118 taxa Open ↗
• Appanoose 19007
  38 taxa Open ↗
• Audubon 19009
  225 taxa Open ↗
• Benton 19011
  21 taxa Open ↗
• Black Hawk 19013
  33 taxa Open ↗
• Boone 19015
  146 taxa Open ↗
• Bremer 19017
  24 taxa Open ↗
• Buchanan 19019
  16 taxa Open ↗

Showing 251–300 of 343 (introduced).

• 
  Rosa multiflora Thunb. Introduced ROMU

  multiflora rose · Rosaceae 4 counties
• 
  Rosa rubiginosa L. Introduced RORU82

  sweetbriar rose · Rosaceae 1 county
• 
  Rubus parvifolius L. Introduced RUPA2

  Japanese raspberry · Rosaceae 11 counties
• 
  Rumex acetosella L. Introduced RUAC3

  common sheep sorrel · Polygonaceae 21 counties
• 
  Rumex crispus L. Introduced RUCR

  curly dock · Polygonaceae 28 counties
• 
  Rumex crispus L. ssp. crispus Introduced RUCRC

  curly dock · Polygonaceae 28 counties
• 
  Rumex obtusifolius L. Introduced RUOB

  bitter dock · Polygonaceae 6 counties
• 
  Rumex patientia L. Introduced RUPA5

  patience dock · Polygonaceae 4 counties
• 
  Rumex stenophyllus Ledeb. Introduced RUST4

  narrowleaf dock · Polygonaceae 1 county
• 
  Salix alba L. Introduced SAAL2

  white willow · Salicaceae 6 counties
• ⚘
  Salix fragilis L. Introduced SAFR

  crack willow · Salicaceae 4 counties
• 
  Salix pentandra L. Introduced SAPE4

  laurel willow · Salicaceae 1 county
• 
  Salsola tragus L. Introduced SATR12

  prickly Russian thistle · Chenopodiaceae 18 counties
• ⚘
  Salvia ×sylvestris L. (pro sp.) [nemorosa × pratensis] Introduced SASY

  woodland sage · Lamiaceae 2 counties
• 
  Sanguisorba minor Scop. Introduced SAMI3

  small burnet · Rosaceae 1 county
• 
  Sanguisorba minor Scop. ssp. balearica (Bourg. ex Nyman) M. Garm. & C. Navarro Introduced SAMIB2

  small burnet · Rosaceae 1 county
• 
  Saponaria officinalis L. Introduced SAOF4

  bouncingbet · Caryophyllaceae 19 counties
• 
  Schedonorus arundinaceus (Schreb.) Dumort., nom. cons. Introduced SCAR7

  tall fescue · Poaceae 3 counties
• 
  Schedonorus pratensis (Huds.) P. Beauv. Introduced SCPR4

  meadow fescue · Poaceae 19 counties
• 
  Sclerochloa dura (L.) P. Beauv. Introduced SCDU2

  common hardgrass · Poaceae 1 county
• 
  Secale cereale L. Introduced SECE

  cereal rye · Poaceae 2 counties
• 
  Securigera varia (L.) Lassen Introduced SEVA4

  crownvetch · Fabaceae 2 counties
• 
  Sedum sarmentosum Bunge Introduced SESA

  stringy stonecrop · Crassulaceae 1 county
• 
  Setaria faberi Herrm. Introduced SEFA

  Japanese bristlegrass · Poaceae 30 counties
• 
  Setaria italica (L.) P. Beauv. Introduced SEIT

  foxtail millet · Poaceae 3 counties
• 
  Setaria verticillata (L.) P. Beauv. Introduced SEVE3

  hooked bristlegrass · Poaceae 26 counties
• 
  Setaria viridis (L.) P. Beauv. Introduced SEVI4

  green bristlegrass · Poaceae 49 counties
• 
  Setaria viridis (L.) P. Beauv. var. viridis Introduced SEVIV

  green bristlegrass · Poaceae 49 counties
• 
  Silene armeria L. Introduced SIAR

  sweet William silene · Caryophyllaceae 1 county
• 
  Silene csereii Baumg. Introduced SICS

  Balkan catchfly · Caryophyllaceae 3 counties
• 
  Silene dichotoma Ehrh. Introduced SIDI2

  forked catchfly · Caryophyllaceae 1 county
• 
  Silene latifolia Poir. Introduced SILA21

  bladder campion · Caryophyllaceae 13 counties
• 
  Silene latifolia Poir. ssp. alba (Mill.) Greuter & Burdet Introduced SILAA3

  bladder campion · Caryophyllaceae 13 counties
• 
  Silene noctiflora L. Introduced SINO

  nightflowering silene · Caryophyllaceae 2 counties
• 
  Silene vulgaris (Moench) Garcke Introduced SIVU

  maidenstears · Caryophyllaceae 2 counties
• 
  Sinapis arvensis L. Introduced SIAR4

  charlock mustard · Brassicaceae 26 counties
• 
  Sinapis arvensis L. ssp. arvensis Introduced SIARA

  wild mustard · Brassicaceae 26 counties
• 
  Sisymbrium altissimum L. Introduced SIAL2

  tall tumblemustard · Brassicaceae 13 counties
• 
  Sisymbrium loeselii L. Introduced SILO3

  small tumbleweed mustard · Brassicaceae 2 counties
• 
  Sisymbrium officinale (L.) Scop. Introduced SIOF

  hedgemustard · Brassicaceae 23 counties
• 
  Solanum dulcamara L. Introduced SODU

  climbing nightshade · Solanaceae 1 county
• 
  Solanum lycopersicum L. Introduced SOLY2

  garden tomato · Solanaceae 1 county
• 
  Solanum lycopersicum L. var. lycopersicum Introduced SOLYL

  garden tomato · Solanaceae 1 county
• 
  Solanum physalifolium Rusby Introduced SOPH

  hoe nightshade · Solanaceae 2 counties
• 
  Solanum tuberosum L. Introduced SOTU

  Irish potato · Solanaceae 1 county
• 
  Sonchus arvensis L. Introduced SOAR2

  field sowthistle · Asteraceae 7 counties
• 
  Sonchus arvensis L. ssp. uliginosus (M. Bieb.) Nyman Introduced SOARU

  moist sowthistle · Asteraceae 1 county
• 
  Sonchus asper (L.) Hill Introduced SOAS

  spiny sowthistle · Asteraceae 11 counties
• 
  Sonchus oleraceus L. Introduced SOOL

  common sowthistle · Asteraceae 7 counties
• 
  Sorghum bicolor (L.) Moench Introduced SOBI2

  sorghum · Poaceae 1 county