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 2,001–2,050 of 2,225.

• 
  Strophostyles leiosperma (Torr. & A. Gray) Piper Native STLE6

  slickseed fuzzybean · Fabaceae 12 counties
• 
  Stuckenia pectinata (L.) Börner Native STPE15

  sago pondweed · Potamogetonaceae 16 counties
• 
  Sullivantia sullivantii (Torr. & A. Gray) Britton Native SUSU3

  Sullivant's coolwort · Saxifragaceae 2 counties
• 
  Symphoricarpos occidentalis Hook. Native SYOC

  western snowberry · Caprifoliaceae 22 counties
• 
  Symphoricarpos orbiculatus Moench Native SYOR

  coralberry · Caprifoliaceae 20 counties
• 
  Symphyotrichum anomalum (Engelm.) G.L. Nesom Native SYAN2

  manyray aster · Asteraceae 1 county
• 
  Symphyotrichum ciliatum (Ledeb.) G.L. Nesom Native SYCI2

  rayless alkali aster · Asteraceae 2 counties
• 
  Symphyotrichum ciliolatum (Lindl.) Á. Löve & D. Löve Native SYCI

  Lindley's aster · Asteraceae 1 county
• 
  Symphyotrichum cordifolium (L.) G.L. Nesom Native SYCO4

  common blue wood aster · Asteraceae 18 counties
• 
  Symphyotrichum drummondii (Lindl.) G.L. Nesom Native SYDR

  Drummond's aster · Asteraceae 6 counties
• 
  Symphyotrichum drummondii (Lindl.) G.L. Nesom var. drummondii Native SYDRD

  Drummond's aster · Asteraceae 6 counties
• 
  Symphyotrichum dumosum (L.) G.L. Nesom Native SYDU2

  rice button aster · Asteraceae 1 county
• 
  Symphyotrichum dumosum (L.) G.L. Nesom var. dumosum Native SYDUD2

  rice button aster · Asteraceae 1 county
• 
  Symphyotrichum ericoides (L.) G.L. Nesom Native SYER

  white heath aster · Asteraceae 28 counties
• 
  Symphyotrichum ericoides (L.) G.L. Nesom var. ericoides Native SYERE

  white heath aster · Asteraceae 28 counties
• 
  Symphyotrichum laeve (L.) Á. Löve & D. Löve Native SYLA3

  smooth blue aster · Asteraceae 32 counties
• 
  Symphyotrichum laeve (L.) Á. Löve & D. Löve var. laeve Native SYLAL3

  smooth blue aster · Asteraceae 32 counties
• 
  Symphyotrichum lanceolatum (Willd.) G.L. Nesom Native SYLA6

  white panicle aster · Asteraceae 19 counties
• 
  Symphyotrichum lanceolatum (Willd.) G.L. Nesom ssp. lanceolatum Native SYLAL6

  white panicle aster · Asteraceae 19 counties
• 
  Symphyotrichum lanceolatum (Willd.) G.L. Nesom ssp. lanceolatum var. lanceolatum Native SYLAL4

  white panicle aster · Asteraceae 19 counties
• 
  Symphyotrichum lateriflorum (L.) Á. Löve & D. Löve Native SYLA4

  calico aster · Asteraceae 5 counties
• 
  Symphyotrichum lateriflorum (L.) Á. Löve & D. Löve var. lateriflorum Native SYLAL7

  calico aster · Asteraceae 5 counties
• 
  Symphyotrichum novae-angliae (L.) G.L. Nesom Native SYNO2

  New England aster · Asteraceae 21 counties
• 
  Symphyotrichum oblongifolium (Nutt.) G.L. Nesom Native SYOB

  aromatic aster · Asteraceae 18 counties
• 
  Symphyotrichum ontarionis (Wiegand) G.L. Nesom Native SYON2

  bottomland aster · Asteraceae 13 counties
• 
  Symphyotrichum oolentangiense (Riddell) G.L. Nesom Native SYOO

  skyblue aster · Asteraceae 11 counties
• 
  Symphyotrichum oolentangiense (Riddell) G.L. Nesom var. oolentangiense Native SYOOO

  skyblue aster · Asteraceae 11 counties
• 
  Symphyotrichum parviceps (Burgess) G.L. Nesom Native SYPA10

  smallhead aster · Asteraceae 1 county
• 
  Symphyotrichum pilosum (Willd.) G.L. Nesom Native SYPI2

  hairy white oldfield aster · Asteraceae 11 counties
• 
  Symphyotrichum pilosum (Willd.) G.L. Nesom var. pilosum Native SYPIP3

  hairy white oldfield aster · Asteraceae 11 counties
• 
  Symphyotrichum praealtum (Poir.) G.L. Nesom Native SYPR5

  willowleaf aster · Asteraceae 7 counties
• 
  Symphyotrichum praealtum (Poir.) G.L. Nesom var. praealtum Native SYPRP

  willowleaf aster · Asteraceae 7 counties
• 
  Symphyotrichum prenanthoides (Muhl. ex Willd.) G.L. Nesom Native SYPR6

  crookedstem aster · Asteraceae 1 county
• 
  Symphyotrichum puniceum (L.) Á. Löve & D. Löve Native SYPU

  purplestem aster · Asteraceae 2 counties
• 
  Symphyotrichum puniceum (L.) Á. Löve & D. Löve var. puniceum Native SYPUP

  purplestem aster · Asteraceae 2 counties
• 
  Symphyotrichum sericeum (Vent.) G.L. Nesom Native SYSE2

  western silver aster · Asteraceae 60 counties
• 
  Symphyotrichum shortii (Lindl.) G.L. Nesom Native SYSH

  Short's aster · Asteraceae 3 counties
• 
  Symphyotrichum turbinellum (Lindl.) G.L. Nesom Native SYTU2

  smooth violet prairie aster · Asteraceae 1 county
• 
  Syringa vulgaris L. Introduced SYVU

  common lilac · Oleaceae 1 county
• 
  Taenidia integerrima (L.) Drude Native TAIN

  yellow pimpernel · Apiaceae 24 counties
• 
  Tamarix ramosissima Ledeb. Introduced TARA

  saltcedar · Tamaricaceae 1 county
• 
  Tanacetum vulgare L. Introduced TAVU

  common tansy · Asteraceae 6 counties
• 
  Taraxacum laevigatum (Willd.) DC. Introduced TALA2

  rock dandelion · Asteraceae 11 counties
• 
  Taraxacum officinale F.H. Wigg. Both TAOF

  common dandelion · Asteraceae 25 counties
• 
  Taraxacum officinale F.H. Wigg. ssp. officinale Introduced TAOFO

  common dandelion · Asteraceae 25 counties
• 
  Taxus canadensis Marshall Native TACA7

  Canada yew · Taxaceae 2 counties
• 
  Tephrosia virginiana (L.) Pers. Native TEVI

  Virginia tephrosia · Fabaceae 8 counties
• 
  Teucrium canadense L. Native TECA3

  Canada germander · Lamiaceae 23 counties
• 
  Teucrium canadense L. var. canadense Native TECAC

  Canada germander · Lamiaceae 13 counties
• 
  Teucrium canadense L. var. occidentale (A. Gray) E.M. McClint. & Epling Native TECAO

  western germander · Lamiaceae 19 counties