West Virginia

• Barbour 54001
  829 taxa Open ↗
• Berkeley 54003
  705 taxa Open ↗
• Boone 54005
  327 taxa Open ↗
• Braxton 54007
  709 taxa Open ↗
• Brooke 54009
  578 taxa Open ↗
• Cabell 54011
  647 taxa Open ↗
• Calhoun 54013
  739 taxa Open ↗
• Clay 54015
  284 taxa Open ↗
• Doddridge 54017
  349 taxa Open ↗
• Fayette 54019
  1,478 taxa Open ↗

Showing 2,351–2,400 of 2,838.

• 
  Senna obtusifolia (L.) Irwin & Barneby Native SEOB4

  Java-bean · Fabaceae 1 county
• 
  Sericocarpus asteroides (L.) Britton, Sterns & Poggenb. Native SEAS3

  toothed whitetop aster · Asteraceae 1 county
• 
  Sericocarpus linifolius (L.) Britton, Sterns & Poggenb. Native SELI5

  narrowleaf whitetop aster · Asteraceae 2 counties
• 
  Setaria faberi Herrm. Introduced SEFA

  Japanese bristlegrass · Poaceae 12 counties
• 
  Setaria italica (L.) P. Beauv. Introduced SEIT

  foxtail millet · Poaceae 7 counties
• 
  Setaria parviflora (Poir.) Kerguélen Native SEPA10

  marsh bristlegrass · Poaceae 6 counties
• 
  Setaria verticillata (L.) P. Beauv. Introduced SEVE3

  hooked bristlegrass · Poaceae 3 counties
• 
  Setaria viridis (L.) P. Beauv. Introduced SEVI4

  green bristlegrass · Poaceae 26 counties
• 
  Setaria viridis (L.) P. Beauv. var. viridis Introduced SEVIV

  green bristlegrass · Poaceae 26 counties
• 
  Sherardia arvensis L. Introduced SHAR2

  blue fieldmadder · Rubiaceae 11 counties
• 
  Sibbaldiopsis tridentata (Aiton) Rydb. Native SITR3

  shrubby fivefingers · Rosaceae 5 counties
• 
  Sicyos angulatus L. Native SIAN

  oneseed bur cucumber · Cucurbitaceae 29 counties
• 
  Sida hermaphrodita (L.) Rusby Native SIHE3

  Virginia fanpetals · Malvaceae 2 counties
• 
  Sida spinosa L. Native SISP

  prickly fanpetals · Malvaceae 29 counties
• 
  Silene antirrhina L. Native SIAN2

  sleepy silene · Caryophyllaceae 24 counties
• 
  Silene armeria L. Introduced SIAR

  sweet William silene · Caryophyllaceae 6 counties
• 
  Silene caroliniana Walter Native SICA6

  sticky catchfly · Caryophyllaceae 15 counties
• 
  Silene caroliniana Walter ssp. pensylvanica (Michx.) R.T. Clausen Native SICAP

  Pennsylvania catchfly · Caryophyllaceae 15 counties
• 
  Silene csereii Baumg. Introduced SICS

  Balkan catchfly · Caryophyllaceae 1 county
• 
  Silene dichotoma Ehrh. Introduced SIDI2

  forked catchfly · Caryophyllaceae 9 counties
• 
  Silene latifolia Poir. Introduced SILA21

  bladder campion · Caryophyllaceae 24 counties
• 
  Silene latifolia Poir. ssp. alba (Mill.) Greuter & Burdet Introduced SILAA3

  bladder campion · Caryophyllaceae 24 counties
• 
  Silene nivea (Nutt.) Muhl. ex Otth Native SINI

  evening campion · Caryophyllaceae 4 counties
• 
  Silene noctiflora L. Introduced SINO

  nightflowering silene · Caryophyllaceae 1 county
• 
  Silene rotundifolia Nutt. Native SIRO4

  roundleaf catchfly · Caryophyllaceae 1 county
• 
  Silene stellata (L.) W.T. Aiton Native SIST

  widowsfrill · Caryophyllaceae 28 counties
• 
  Silene virginica L. Native SIVI4

  fire pink · Caryophyllaceae 31 counties
• 
  Silene virginica L. var. virginica Native SIVIV

  fire pink · Caryophyllaceae 2 counties
• 
  Silene vulgaris (Moench) Garcke Introduced SIVU

  maidenstears · Caryophyllaceae 16 counties
• 
  Silphium compositum Michx. Native SICO5

  kidneyleaf rosinweed · Asteraceae 4 counties
• 
  Silphium compositum Michx. var. reniforme (Raf. ex Nutt.) Torr. & A. Gray Native SICOR2

  kidneyleaf rosinweed · Asteraceae 4 counties
• 
  Silphium perfoliatum L. Native SIPE2

  cup plant · Asteraceae 6 counties
• 
  Silphium perfoliatum L. var. perfoliatum Native SIPEP

  cup plant · Asteraceae 6 counties
• ⚘
  Silphium trifoliatum L. Native SITR7

  whorled rosinweed · Asteraceae 22 counties
• ⚘
  Silphium trifoliatum L. var. trifoliatum Native SITRT

  whorled rosinweed · Asteraceae 20 counties
• 
  Silybum marianum (L.) Gaertn. Introduced SIMA3

  blessed milkthistle · Asteraceae 2 counties
• 
  Sinapis alba L. Introduced SIAL5

  white mustard · Brassicaceae 3 counties
• 
  Sinapis arvensis L. Introduced SIAR4

  charlock mustard · Brassicaceae 16 counties
• 
  Sinapis arvensis L. ssp. arvensis Introduced SIARA

  wild mustard · Brassicaceae 16 counties
• 
  Sisymbrium altissimum L. Introduced SIAL2

  tall tumblemustard · Brassicaceae 11 counties
• 
  Sisymbrium officinale (L.) Scop. Introduced SIOF

  hedgemustard · Brassicaceae 24 counties
• 
  Sisyrinchium angustifolium Mill. Native SIAN3

  narrowleaf blue-eyed grass · Iridaceae 39 counties
• 
  Sisyrinchium mucronatum Michx. Native SIMU3

  needletip blue-eyed grass · Iridaceae 12 counties
• 
  Sium suave Walter Native SISU2

  hemlock waterparsnip · Apiaceae 9 counties
• 
  Smallanthus uvedalius (L.) Mack. ex Small Native SMUV

  hairy leafcup · Asteraceae 28 counties
• 
  Smilax ecirrhata (Engelm. ex Kunth) S. Watson Native SMEC

  upright carrionflower · Smilacaceae 6 counties
• 
  Smilax glauca Walter Native SMGL

  cat greenbrier · Smilacaceae 34 counties
• 
  Smilax herbacea L. Native SMHE

  smooth carrionflower · Smilacaceae 27 counties
• 
  Smilax pulverulenta Michx. Native SMPU2

  downy carrionflower · Smilacaceae 10 counties
• 
  Smilax rotundifolia L. Native SMRO

  roundleaf greenbrier · Smilacaceae 38 counties