York County

Showing 1,251–1,300 of 1,545.

• 
  Scheuchzeria palustris L. Native SCPA2

  rannoch-rush · Scheuchzeriaceae
• 
  Scheuchzeria palustris L. ssp. americana (Fernald) Hultén Native SCPAA3

  rannoch-rush · Scheuchzeriaceae
• 
  Schizachne purpurascens (Torr.) Swallen Native SCPU

  false melic · Poaceae
• 
  Schizachyrium scoparium (Michx.) Nash Native SCSC

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

  little bluestem · Poaceae
• 
  Schoenoplectiella smithii (A. Gray) Hayas. Native SCSM3

  Smith's bulrush · Cyperaceae
• 
  Schoenoplectus acutus (Muhl. ex Bigelow) Á. Löve & D. Löve Native SCAC3

  hardstem bulrush · Cyperaceae
• 
  Schoenoplectus acutus (Muhl. ex Bigelow) Á. Löve & D. Löve var. acutus Native SCACA

  hardstem bulrush · Cyperaceae
• 
  Schoenoplectus pungens (Vahl) Palla Native SCPU10

  common threesquare · Cyperaceae
• 
  Schoenoplectus pungens (Vahl) Palla var. pungens Native SCPUP5

  common threesquare · Cyperaceae
• 
  Schoenoplectus subterminalis (Torr.) Soják Native SCSU10

  swaying bulrush · Cyperaceae
• 
  Schoenoplectus tabernaemontani (C.C. Gmel.) Palla Native SCTA2

  softstem bulrush · Cyperaceae
• 
  Schoenoplectus torreyi (Olney) Palla Native SCTO3

  Torrey's bulrush · Cyperaceae
• 
  Scirpus atrovirens Willd. Native SCAT2

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

  woolgrass · Cyperaceae
• 
  Scirpus expansus Fernald Native SCEX

  woodland bulrush · Cyperaceae
• 
  Scirpus microcarpus J. Presl & C. Presl Native SCMI2

  panicled bulrush · Cyperaceae
• 
  Scleranthus annuus L. Introduced SCAN2

  German knotgrass · Caryophyllaceae
• 
  Scrophularia lanceolata Pursh Native SCLA

  lanceleaf figwort · Scrophulariaceae
• 
  Scrophularia marilandica L. Native SCMA2

  carpenter's square · Scrophulariaceae
• 
  Scutellaria galericulata L. Native SCGA

  marsh skullcap · Lamiaceae
• 
  Scutellaria lateriflora L. Native SCLA2

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

  blue skullcap · Lamiaceae
• 
  Scutellaria parvula Michx. Native SCPA7

  small skullcap · Lamiaceae
• 
  Securigera varia (L.) Lassen Introduced SEVA4

  crownvetch · Fabaceae
• 
  Sedum acre L. Introduced SEAC

  goldmoss stonecrop · Crassulaceae
• 
  Selaginella apoda (L.) Spring Native SEAP

  meadow spikemoss · Selaginellaceae
• 
  Selaginella rupestris (L.) Spring Native SERU

  northern selaginella · Selaginellaceae
• 
  Senecio vulgaris L. Introduced SEVU

  old-man-in-the-Spring · Asteraceae
• 
  Sericocarpus asteroides (L.) Britton, Sterns & Poggenb. Native SEAS3

  toothed whitetop aster · Asteraceae
• 
  Setaria italica (L.) P. Beauv. Introduced SEIT

  foxtail millet · Poaceae
• 
  Setaria viridis (L.) P. Beauv. Introduced SEVI4

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

  green bristlegrass · Poaceae
• 
  Sibbaldiopsis tridentata (Aiton) Rydb. Native SITR3

  shrubby fivefingers · Rosaceae
• 
  Silene antirrhina L. Native SIAN2

  sleepy silene · Caryophyllaceae
• 
  Silene dichotoma Ehrh. Introduced SIDI2

  forked catchfly · Caryophyllaceae
• 
  Silene gallica L. Introduced SIGA

  common catchfly · Caryophyllaceae
• 
  Silene latifolia Poir. Introduced SILA21

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

  bladder campion · Caryophyllaceae
• 
  Silene noctiflora L. Introduced SINO

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

  maidenstears · Caryophyllaceae
• 
  Sinapis alba L. Introduced SIAL5

  white mustard · Brassicaceae
• 
  Sinapis arvensis L. Introduced SIAR4

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

  wild mustard · Brassicaceae
• 
  Sisymbrium altissimum L. Introduced SIAL2

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

  hedgemustard · Brassicaceae
• 
  Sisyrinchium albidum Raf. Native SIAL3

  white blue-eyed grass · Iridaceae
• 
  Sisyrinchium angustifolium Mill. Native SIAN3

  narrowleaf blue-eyed grass · Iridaceae
• 
  Sisyrinchium atlanticum E.P. Bicknell Native SIAT

  eastern blue-eyed grass · Iridaceae
• 
  Sisyrinchium montanum Greene Native SIMO2

  strict blue-eyed grass · Iridaceae