Virginia

• Accomack 51001
  1,201 taxa Open ↗
• Albemarle 51003
  1,479 taxa Open ↗
• Alexandria (city) 51510
  1 taxa Open ↗
• Alleghany 51005
  1,296 taxa Open ↗
• Amelia 51007
  1,090 taxa Open ↗
• Amherst 51009
  1,290 taxa Open ↗
• Appomattox 51011
  918 taxa Open ↗
• Arlington 51013
  1,096 taxa Open ↗
• Augusta 51015
  1,556 taxa Open ↗
• Bath 51017
  1,158 taxa Open ↗

Showing 3,201–3,250 of 3,680.

• 
  Spartina alterniflora Loisel. Native SPAL

  smooth cordgrass · Poaceae 24 counties
• 
  Spartina cynosuroides (L.) Roth Native SPCY

  big cordgrass · Poaceae 26 counties
• 
  Spartina patens (Aiton) Muhl. Native SPPA

  saltmeadow cordgrass · Poaceae 24 counties
• 
  Spartina pectinata Bosc ex Link Native SPPE

  prairie cordgrass · Poaceae 10 counties
• 
  Spergula arvensis L. Introduced SPAR

  corn spurry · Caryophyllaceae 17 counties
• 
  Spergula pentandra L. Introduced SPPE4

  wingstem spurry · Caryophyllaceae 5 counties
• 
  Spergularia rubra (L.) J. Presl & C. Presl Introduced SPRU

  red sandspurry · Caryophyllaceae 2 counties
• 
  Spergularia salina J. Presl & C. Presl Native SPSA5

  salt sandspurry · Caryophyllaceae 14 counties
• 
  Spermacoce glabra Michx. Native SPGL2

  smooth false buttonweed · Rubiaceae 1 county
• 
  Spermolepis divaricata (Walter) Raf. ex Ser. Native SPDI2

  roughfruit scaleseed · Apiaceae 2 counties
• 
  Spermolepis echinata (Nutt. ex DC.) A. Heller Native SPEC2

  bristly scaleseed · Apiaceae 3 counties
• 
  Sphenopholis filiformis (Chapm.) Scribn. Native SPFI

  longleaf wedgescale · Poaceae 4 counties
• 
  Sphenopholis nitida (Biehler) Scribn. Native SPNI

  shiny wedgescale · Poaceae 75 counties
• 
  Sphenopholis obtusata (Michx.) Scribn. Native SPOB

  prairie wedgescale · Poaceae 68 counties
• 
  Sphenopholis pensylvanica (L.) Hitchc. Native SPPE3

  swamp wedgescale · Poaceae 47 counties
• ⚘
  Sphenopholis ×pallens (Biehler) Scribn. (pro sp.) [obtusata × pensylvanica] Native SPPA7

  wedgescale · Poaceae 3 counties
• 
  Spiraea alba Du Roi Native SPAL2

  white meadowsweet · Rosaceae 32 counties
• 
  Spiraea alba Du Roi var. alba Native SPALA

  white meadowsweet · Rosaceae 1 county
• 
  Spiraea alba Du Roi var. latifolia (Aiton) Dippel Native SPALL

  white meadowsweet · Rosaceae 22 counties
• 
  Spiraea corymbosa Raf. Native SPCO12

  shinyleaf meadowsweet · Rosaceae 35 counties
• 
  Spiraea japonica L. f. Introduced SPJA

  Japanese meadowsweet · Rosaceae 22 counties
• 
  Spiraea japonica L. f. var. fortunei (Planch.) Rehder Introduced SPJAF

  fortune meadowsweet · Rosaceae 22 counties
• 
  Spiraea prunifolia Siebold & Zucc. Introduced SPPR

  bridalwreath spirea · Rosaceae 12 counties
• 
  Spiraea salicifolia L. Introduced SPSA2

  willowleaf meadowsweet · Rosaceae 3 counties
• 
  Spiraea tomentosa L. Native SPTO2

  steeplebush · Rosaceae 36 counties
• 
  Spiraea virginiana Britton Native SPVI2

  Virginia meadowsweet · Rosaceae 4 counties
• ⚘
  Spiraea ×billiardii Hérincq (pro sp.) [douglasii × salicifolia] Native SPBI2

  spirea · Rosaceae 2 counties
• ⚘
  Spiraea ×bumalda Burven [albiflora × japonica] Introduced SPBU2

  Japanese spiraea · Rosaceae 1 county
• 
  Spiranthes cernua (L.) Rich. Native SPCE

  nodding lady's tresses · Orchidaceae 68 counties
• 
  Spiranthes lacera (Raf.) Raf. Native SPLA4

  northern slender lady's tresses · Orchidaceae 51 counties
• 
  Spiranthes lacera (Raf.) Raf. var. gracilis (Bigelow) Luer Native SPLAG

  northern slender lady's tresses · Orchidaceae 51 counties
• 
  Spiranthes lucida (H.H. Eaton) Ames Native SPLU2

  shining lady's tresses · Orchidaceae 6 counties
• 
  Spiranthes ochroleuca (Rydb.) Rydb. Native SPOC

  yellow nodding lady's tresses · Orchidaceae 5 counties
• 
  Spiranthes ovalis Lindl. Native SPOV

  October lady's tresses · Orchidaceae 24 counties
• 
  Spiranthes ovalis Lindl. var. erostellata Catling Native SPOVE

  October lady's tresses · Orchidaceae 24 counties
• 
  Spiranthes praecox (Walter) S. Watson Native SPPR2

  greenvein lady's tresses · Orchidaceae 21 counties
• 
  Spiranthes tuberosa Raf. Native SPTU

  little lady's tresses · Orchidaceae 25 counties
• 
  Spiranthes vernalis Engelm. & A. Gray Native SPVE

  spring lady's tresses · Orchidaceae 44 counties
• 
  Spirodela polyrrhiza (L.) Schleid. Native SPPO

  common duckmeat · Lemnaceae 49 counties
• 
  Sporobolus clandestinus (Biehler) Hitchc. Native SPCL

  rough dropseed · Poaceae 26 counties
• 
  Sporobolus compositus (Poir.) Merr. Native SPCO16

  composite dropseed · Poaceae 6 counties
• 
  Sporobolus compositus (Poir.) Merr. var. compositus Native SPCOC2

  composite dropseed · Poaceae 6 counties
• 
  Sporobolus heterolepis (A. Gray) A. Gray Native SPHE

  prairie dropseed · Poaceae 1 county
• 
  Sporobolus indicus (L.) R. Br. Introduced SPIN4

  smut grass · Poaceae 35 counties
• 
  Sporobolus indicus (L.) R. Br. var. indicus Introduced SPINI2

  smut grass · Poaceae 35 counties
• 
  Sporobolus junceus (P. Beauv.) Kunth Native SPJU

  pineywoods dropseed · Poaceae 2 counties
• 
  Sporobolus neglectus Nash Native SPNE2

  puffsheath dropseed · Poaceae 7 counties
• 
  Sporobolus vaginiflorus (Torr. ex A. Gray) Alph. Wood Native SPVA

  poverty dropseed · Poaceae 63 counties
• 
  Stachys appalachiana D.B. Poind. & J.B. Nelson Native STAP5

  Appalachian hedgenettle · Lamiaceae 4 counties
• 
  Stachys aspera Michx. Native STAS

  hyssopleaf hedgenettle · Lamiaceae 2 counties