Cook County

Showing 301–350 of 359.

• 
  Sabatia campanulata (L.) Torr. Native SACA26

  slender rose gentian · Gentianaceae
• 
  Sabatia macrophylla Hook. Native SAMA8

  largeleaf rose gentian · Gentianaceae
• 
  Saccharum alopecuroides (L.) Nutt. Native SAAL21

  silver plumegrass · Poaceae
• 
  Sanicula canadensis L. Native SACA15

  Canadian blacksnakeroot · Apiaceae
• 
  Sanicula canadensis L. var. canadensis Native SACAC2

  Canadian blacksnakeroot · Apiaceae
• 
  Sarracenia flava L. Native SAFL4

  yellow pitcherplant · Sarraceniaceae
• 
  Sarracenia psittacina Michx. Native SAPS2

  parrot pitcherplant · Sarraceniaceae
• 
  Scirpus cyperinus (L.) Kunth Native SCCY

  woolgrass · Cyperaceae
• 
  Scleria reticularis Michx. Native SCRE

  netted nutrush · Cyperaceae
• 
  Scoparia dulcis L. Native SCDU3

  licorice weed · Scrophulariaceae
• 
  Scutellaria integrifolia L. Native SCIN2

  helmet flower · Lamiaceae
• 
  Secale cereale L. Introduced SECE

  cereal rye · Poaceae
• 
  Senna obtusifolia (L.) Irwin & Barneby Native SEOB4

  Java-bean · Fabaceae
• 
  Senna occidentalis (L.) Link Introduced SEOC2

  septicweed · Fabaceae
• 
  Sesbania punicea (Cav.) Benth. Introduced SEPU7

  rattlebox · Fabaceae
• 
  Setaria corrugata (Elliott) Schult. Native SECO4

  coastal bristlegrass · Poaceae
• 
  Sisyrinchium rosulatum E.P. Bicknell Native SIRO5

  annual blue-eyed grass · Iridaceae
• 
  Smilax smallii Morong Native SMSM

  lanceleaf greenbrier · Smilacaceae
• 
  Smilax walteri Pursh Native SMWA

  coral greenbrier · Smilacaceae
• 
  Solanum carolinense L. Native SOCA3

  Carolina horsenettle · Solanaceae
• 
  Solidago gracillima Torr. & A. Gray Native SOGR4

  Virginia goldenrod · Asteraceae
• 
  Sonchus asper (L.) Hill Introduced SOAS

  spiny sowthistle · Asteraceae
• 
  Sorghastrum secundum (Elliott) Nash Native SOSE5

  lopsided Indiangrass · Poaceae
• 
  Sorghum halepense (L.) Pers. Introduced SOHA

  Johnsongrass · Poaceae
• 
  Sphenopholis obtusata (Michx.) Scribn. Native SPOB

  prairie wedgescale · Poaceae
• 
  Spiranthes longilabris Lindl. Native SPLO2

  giantspiral lady's tresses · Orchidaceae
• 
  Sporobolus floridanus Chapm. Native SPFL3

  Florida dropseed · Poaceae
• 
  Sporobolus junceus (P. Beauv.) Kunth Native SPJU

  pineywoods dropseed · Poaceae
• 
  Sporobolus teretifolius Harper Native SPTE4

  wireleaf dropseed · Poaceae
• 
  Steinchisma hians (Elliott) Nash Native STHI3

  gaping grass · Poaceae
• 
  Stenanthium gramineum (Ker Gawl.) Morong Native STGR2

  eastern featherbells · Liliaceae
• 
  Stewartia malacodendron L. Native STMA

  silky camellia · Theaceae
• 
  Styrax americanus Lam. Native STAM4

  American snowbell · Styracaceae
• 
  Symphyotrichum dumosum (L.) G.L. Nesom Native SYDU2

  rice button aster · Asteraceae
• 
  Tephrosia spicata (Walter) Torr. & A. Gray Native TESP

  spiked hoarypea · Fabaceae
• 
  Toxicodendron vernix (L.) Kuntze Native TOVE

  poison sumac · Anacardiaceae
• 
  Triadenum virginicum (L.) Raf. Native TRVI2

  Virginia marsh St. Johnswort · Clusiaceae
• 
  Triantha racemosa (Walter) Small Native TRRA6

  coastal false asphodel · Liliaceae
• 
  Trichostema dichotomum L. Native TRDI2

  forked bluecurls · Lamiaceae
• 
  Urtica chamaedryoides Pursh Native URCH3

  heartleaf nettle · Urticaceae
• 
  Utricularia purpurea Walter Native UTPU

  eastern purple bladderwort · Lentibulariaceae
• 
  Utricularia subulata L. Native UTSU

  zigzag bladderwort · Lentibulariaceae
• 
  Vaccinium stamineum L. Native VAST

  deerberry · Ericaceae
• 
  Valerianella radiata (L.) Dufr. Native VARA

  beaked cornsalad · Valerianaceae
• 
  Verbascum thapsus L. Introduced VETH

  common mullein · Scrophulariaceae
• 
  Verbena rigida Spreng. Introduced VERI2

  tuberous vervain · Verbenaceae
• 
  Vernonia angustifolia Michx. Native VEAN

  tall ironweed · Asteraceae
• 
  Veronica peregrina L. Native VEPE2

  neckweed · Scrophulariaceae
• 
  Viburnum nudum L. Native VINU

  possumhaw · Caprifoliaceae
• 
  Viola lanceolata L. Native VILA4

  bog white violet · Violaceae