Colorado

• Adams 08001
  205 taxa Open ↗
• Alamosa 08003
  652 taxa Open ↗
• Arapahoe 08005
  254 taxa Open ↗
• Archuleta 08007
  651 taxa Open ↗
• Baca 08009
  785 taxa Open ↗
• Bent 08011
  267 taxa Open ↗
• Boulder 08013
  1,961 taxa Open ↗
• Broomfield 08014
  0 taxa Open ↗
• Chaffee 08015
  607 taxa Open ↗
• Cheyenne 08017
  694 taxa Open ↗

Showing 3,151–3,200 of 3,643 (native).

• 
  Schoenoplectus pungens (Vahl) Palla var. longispicatus (Britton) S.G. Sm. Native SCPUL4

  common threesquare · Cyperaceae 23 counties
• 
  Schoenoplectus pungens (Vahl) Palla var. pungens Native SCPUP5

  common threesquare · Cyperaceae 3 counties
• 
  Schoenoplectus tabernaemontani (C.C. Gmel.) Palla Native SCTA2

  softstem bulrush · Cyperaceae 28 counties
• 
  Scirpus microcarpus J. Presl & C. Presl Native SCMI2

  panicled bulrush · Cyperaceae 19 counties
• 
  Scirpus nevadensis S. Watson Native SCNE

  Nevada bulrush · Cyperaceae 3 counties
• 
  Scirpus pallidus (Britton) Fernald Native SCPA8

  cloaked bulrush · Cyperaceae 16 counties
• 
  Scirpus pendulus Muhl. Native SCPE4

  rufous bulrush · Cyperaceae 1 county
• 
  Sclerocactus glaucus (J.A. Purpus ex K. Schum.) L.D. Benson Native SCGL3

  Colorado hookless cactus · Cactaceae 4 counties
• 
  Sclerocactus mesae-verdae (Boissev. & C. Davidson) L.D. Benson Native SCME4

  Mesa Verde fishhook cactus · Cactaceae 2 counties
• 
  Sclerocactus parviflorus Clover & Jotter Native SCPA9

  smallflower fishhook cactus · Cactaceae 6 counties
• 
  Sclerocactus parviflorus Clover & Jotter ssp. intermedius (Peebles) K.D. Heil & J.M. Porter Native SCPAI2

  intermediate fishhook cactus · Cactaceae 1 county
• 
  Sclerocactus parviflorus Clover & Jotter ssp. parviflorus Native SCPAP

  smallflower fishhook cactus · Cactaceae 1 county
• 
  Scleropogon brevifolius Phil. Native SCBR2

  burrograss · Poaceae 1 county
• 
  Scrophularia lanceolata Pursh Native SCLA

  lanceleaf figwort · Scrophulariaceae 21 counties
• 
  Scutellaria brittonii Porter Native SCBR3

  Britton's skullcap · Lamiaceae 17 counties
• 
  Scutellaria galericulata L. Native SCGA

  marsh skullcap · Lamiaceae 21 counties
• 
  Scutellaria lateriflora L. Native SCLA2

  blue skullcap · Lamiaceae 3 counties
• 
  Scutellaria lateriflora L. var. lateriflora Native SCLAL2

  blue skullcap · Lamiaceae 3 counties
• 
  Scutellaria resinosa Torr. Native SCRE3

  sticky skullcap · Lamiaceae 1 county
• 
  Sedum lanceolatum Torr. Native SELA

  spearleaf stonecrop · Crassulaceae 35 counties
• 
  Sedum lanceolatum Torr. ssp. lanceolatum Native SELAL

  spearleaf stonecrop · Crassulaceae 34 counties
• 
  Selaginella densa Rydb. Native SEDE2

  lesser spikemoss · Selaginellaceae 30 counties
• 
  Selaginella mutica D.C. Eaton ex Underw. Native SEMU

  bluntleaf spikemoss · Selaginellaceae 11 counties
• 
  Selaginella mutica D.C. Eaton ex Underw. var. mutica Native SEMUM

  bluntleaf spikemoss · Selaginellaceae 11 counties
• 
  Selaginella underwoodii Hieron. Native SEUN

  Underwood's spikemoss · Selaginellaceae 13 counties
• 
  Selaginella weatherbiana R. Tryon Native SEWE3

  Weatherby's spikemoss · Selaginellaceae 10 counties
• 
  Senecio amplectens A. Gray Native SEAM

  showy alpine ragwort · Asteraceae 28 counties
• 
  Senecio amplectens A. Gray var. amplectens Native SEAMA

  showy alpine ragwort · Asteraceae 20 counties
• 
  Senecio amplectens A. Gray var. holmii (Greene) Harrington Native SEAMH

  Holm's ragwort · Asteraceae 23 counties
• 
  Senecio atratus Greene Native SEAT

  tall blacktip ragwort · Asteraceae 22 counties
• 
  Senecio bigelovii A. Gray Native SEBI2

  nodding ragwort · Asteraceae 28 counties
• 
  Senecio bigelovii A. Gray var. hallii Native SEBIH

  Hall's ragwort · Asteraceae 28 counties
• 
  Senecio crassulus A. Gray Native SECR

  thickleaf ragwort · Asteraceae 25 counties
• 
  Senecio eremophilus Richardson Native SEER2

  desert ragwort · Asteraceae 34 counties
• 
  Senecio eremophilus Richardson var. kingii (Rydb.) Greenm. Native SEERK

  King's ragwort · Asteraceae 34 counties
• 
  Senecio eremophilus Richardson var. macdougalii (A. Heller) Cronquist Native SEERM

  MacDougal's ragwort · Asteraceae 1 county
• 
  Senecio flaccidus Less. Native SEFL3

  threadleaf ragwort · Asteraceae 13 counties
• 
  Senecio flaccidus Less. var. douglasii (DC.) B.L. Turner & T.M. Barkley Native SEFLD

  Douglas' ragwort · Asteraceae 3 counties
• 
  Senecio flaccidus Less. var. flaccidus Native SEFLF

  threadleaf ragwort · Asteraceae 13 counties
• 
  Senecio fremontii Torr. & A. Gray Native SEFR3

  dwarf mountain ragwort · Asteraceae 25 counties
• 
  Senecio fremontii Torr. & A. Gray var. blitoides (Greene) Cronquist Native SEFRB

  dwarf mountain ragwort · Asteraceae 24 counties
• 
  Senecio fremontii Torr. & A. Gray var. inexpectatus Cronquist Native SEFRI

  dwarf mountain ragwort · Asteraceae 1 county
• 
  Senecio hydrophilus Nutt. Native SEHY2

  water ragwort · Asteraceae 6 counties
• 
  Senecio integerrimus Nutt. Native SEIN2

  lambstongue ragwort · Asteraceae 25 counties
• 
  Senecio pudicus Greene Native SEPU3

  bashful ragwort · Asteraceae 17 counties
• 
  Senecio rapifolius Nutt. Native SERA

  openwoods ragwort · Asteraceae 3 counties
• 
  Senecio riddellii Torr. & A. Gray Native SERI2

  Riddell's ragwort · Asteraceae 20 counties
• 
  Senecio serra Hook. Native SESE2

  tall ragwort · Asteraceae 16 counties
• 
  Senecio serra Hook. var. admirabilis (Greene) A. Nelson Native SESEA

  tall ragwort · Asteraceae 16 counties
• 
  Senecio soldanella A. Gray Native SESO

  Colorado ragwort · Asteraceae 12 counties