Knox County

Showing 801–850 of 1,050.

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  Sagittaria latifolia Willd. Native SALA2

  broadleaf arrowhead · Alismataceae
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  Salix alba L. Introduced SAAL2

  white willow · Salicaceae
• 
  Salix discolor Muhl. Native SADI

  pussy willow · Salicaceae
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  Salix eriocephala Michx. Native SAER

  Missouri River willow · Salicaceae
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  Salix humilis Marshall Native SAHU2

  prairie willow · Salicaceae
• 
  Salix humilis Marshall var. humilis Native SAHUH

  prairie willow · Salicaceae
• 
  Salix humilis Marshall var. tristis (Aiton) Griggs Native SAHUT

  prairie willow · Salicaceae
• 
  Salix interior Rowlee Native SAIN3

  sandbar willow · Salicaceae
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  Salix lucida Muhl. Native SALU

  shining willow · Salicaceae
• 
  Salix lucida Muhl. ssp. lucida Native SALUL2

  shining willow · Salicaceae
• 
  Salix nigra Marshall Native SANI

  black willow · Salicaceae
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  Salix sericea Marshall Native SASE

  silky willow · Salicaceae
• ⚘
  Salix ×pendulina Wender. [babylonica × euxina] Introduced SAPE12

  Wisconsin weeping willow · Salicaceae
• 
  Salsola tragus L. Introduced SATR12

  prickly Russian thistle · Chenopodiaceae
• 
  Sambucus nigra L. Both SANI4

  black elderberry · Caprifoliaceae
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  Sambucus nigra L. ssp. canadensis (L.) R. Bolli Native SANIC4

  American black elderberry · Caprifoliaceae
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  Sambucus racemosa L. Native SARA2

  red elderberry · Caprifoliaceae
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  Sambucus racemosa L. var. racemosa Native SARAR3

  red elderberry · Caprifoliaceae
• 
  Sanguinaria canadensis L. Native SACA13

  bloodroot · Papaveraceae
• 
  Sanguisorba canadensis L. Native SACA14

  Canadian burnet · Rosaceae
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  Sanicula canadensis L. Native SACA15

  Canadian blacksnakeroot · Apiaceae
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  Sanicula odorata (Raf.) K.M. Pryer & L.R. Phillippe Native SAOD

  clustered blacksnakeroot · Apiaceae
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  Sanicula trifoliata E.P. Bicknell Native SATR4

  largefruit blacksnakeroot · Apiaceae
• 
  Saponaria officinalis L. Introduced SAOF4

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

  sassafras · Lauraceae
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  Saxifraga virginiensis Michx. Native SAVI5

  early saxifrage · Saxifragaceae
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  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
• 
  Schoenoplectus tabernaemontani (C.C. Gmel.) Palla Native SCTA2

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

  woolgrass · Cyperaceae
• 
  Scirpus georgianus Harper Native SCGE2

  Georgia bulrush · Cyperaceae
• 
  Scirpus pendulus Muhl. Native SCPE4

  rufous bulrush · 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 galericulata L. Native SCGA

  marsh skullcap · Lamiaceae
• 
  Scutellaria incana Biehler Native SCIN

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

  hoary skullcap · Lamiaceae
• 
  Scutellaria lateriflora L. Native SCLA2

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

  blue skullcap · Lamiaceae
• 
  Scutellaria parvula Michx. Native SCPA7

  small skullcap · Lamiaceae
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  Scutellaria parvula Michx. var. missouriensis (Torr.) Goodman & C.A. Lawson Native SCPAM

  Leonard's skullcap · Lamiaceae
• 
  Securigera varia (L.) Lassen Introduced SEVA4

  crownvetch · Fabaceae
• 
  Sedum sarmentosum Bunge Introduced SESA

  stringy stonecrop · Crassulaceae
• 
  Sedum ternatum Michx. Native SETE3

  woodland stonecrop · Crassulaceae
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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
• 
  Silene antirrhina L. Native SIAN2

  sleepy silene · Caryophyllaceae
• 
  Silene latifolia Poir. Introduced SILA21

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

  bladder campion · Caryophyllaceae