Washington County

Showing 751–800 of 954.

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  Saponaria officinalis L. Introduced SAOF4

  bouncingbet · Caryophyllaceae
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  Sassafras albidum (Nutt.) Nees Native SAAL5

  sassafras · Lauraceae
• 
  Saururus cernuus L. Native SACE

  lizard's tail · Saururaceae
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  Saxifraga virginiensis Michx. Native SAVI5

  early saxifrage · Saxifragaceae
• 
  Saxifraga virginiensis Michx. var. virginiensis Native SAVIV

  early saxifrage · Saxifragaceae
• 
  Schizachyrium scoparium (Michx.) Nash Native SCSC

  little bluestem · Poaceae
• 
  Schizachyrium scoparium (Michx.) Nash var. scoparium Native SCSCS

  little bluestem · Poaceae
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  Schoenoplectus tabernaemontani (C.C. Gmel.) Palla Native SCTA2

  softstem bulrush · Cyperaceae
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  Scirpus atrovirens Willd. Native SCAT2

  green bulrush · Cyperaceae
• 
  Scirpus cyperinus (L.) Kunth Native SCCY

  woolgrass · Cyperaceae
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  Sclerochloa dura (L.) P. Beauv. Introduced SCDU2

  common hardgrass · Poaceae
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  Scrophularia marilandica L. Native SCMA2

  carpenter's square · Scrophulariaceae
• 
  Scutellaria incana Biehler Native SCIN

  hoary skullcap · Lamiaceae
• 
  Scutellaria incana Biehler var. incana Native SCINI2

  hoary skullcap · Lamiaceae
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  Scutellaria lateriflora L. Native SCLA2

  blue skullcap · Lamiaceae
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  Scutellaria lateriflora L. var. lateriflora Native SCLAL2

  blue skullcap · Lamiaceae
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  Scutellaria nervosa Pursh Native SCNE2

  veiny skullcap · Lamiaceae
• 
  Sedum ternatum Michx. Native SETE3

  woodland stonecrop · Crassulaceae
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  Senna marilandica (L.) Link Native SEMA11

  Maryland senna · Fabaceae
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  Sericocarpus asteroides (L.) Britton, Sterns & Poggenb. Native SEAS3

  toothed whitetop aster · Asteraceae
• 
  Sicyos angulatus L. Native SIAN

  oneseed bur cucumber · Cucurbitaceae
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  Sida spinosa L. Native SISP

  prickly fanpetals · Malvaceae
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  Silene antirrhina L. Native SIAN2

  sleepy silene · Caryophyllaceae
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  Silene caroliniana Walter Native SICA6

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

  Pennsylvania catchfly · Caryophyllaceae
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  Silene noctiflora L. Introduced SINO

  nightflowering silene · Caryophyllaceae
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  Silene stellata (L.) W.T. Aiton Native SIST

  widowsfrill · Caryophyllaceae
• 
  Silene virginica L. Native SIVI4

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

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

  maidenstears · Caryophyllaceae
• 
  Silphium perfoliatum L. Native SIPE2

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

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

  whorled rosinweed · Asteraceae
• 
  Sisymbrium officinale (L.) Scop. Introduced SIOF

  hedgemustard · Brassicaceae
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  Sisyrinchium angustifolium Mill. Native SIAN3

  narrowleaf blue-eyed grass · Iridaceae
• 
  Sium suave Walter Native SISU2

  hemlock waterparsnip · Apiaceae
• 
  Smilax glauca Walter Native SMGL

  cat greenbrier · Smilacaceae
• 
  Smilax rotundifolia L. Native SMRO

  roundleaf greenbrier · Smilacaceae
• 
  Smilax tamnoides L. Native SMTA2

  bristly greenbrier · Smilacaceae
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  Solanum carolinense L. Native SOCA3

  Carolina horsenettle · Solanaceae
• 
  Solanum carolinense L. var. carolinense Native SOCAC4

  Carolina horsenettle · Solanaceae
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  Solanum dulcamara L. Introduced SODU

  climbing nightshade · Solanaceae
• 
  Solanum dulcamara L. var. dulcamara Introduced SODUD

  climbing nightshade · Solanaceae
• 
  Solanum ptycanthum Dunal Native SOPT7

  West Indian nightshade · Solanaceae
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  Solanum rostratum Dunal Native SORO

  buffalobur nightshade · Solanaceae
• 
  Solidago bicolor L. Native SOBI

  white goldenrod · Asteraceae
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  Solidago caesia L. Native SOCA4

  wreath goldenrod · Asteraceae
• 
  Solidago canadensis L. Native SOCA6

  Canada goldenrod · Asteraceae
• 
  Solidago erecta Pursh Native SOER

  showy goldenrod · Asteraceae
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  Solidago flexicaulis L. Native SOFL2

  zigzag goldenrod · Asteraceae