Genus names beginning with S:
155 genera
519 species
98 subspecies and varieties
519 species
98 subspecies and varieties
Show only taxa with photos
Sabulina – sandwort (6 species)
Saccobasis (1 species)
Sagina – pearlwort (5 species)
Sagiolechia (1 species)
Sagittaria – arrowhead (5 species)
Salicornia – glasswort (3 species)
Salicornia – saltwort (3 species)
Salicornia – samphire (3 species)
Salix – willow (36 species)
Salsola – Russian thistle (1 species)
Salvia – sage (4 species)
Sambucus – elder (3 species)
Sambucus – elderberry (3 species)
Samolus – brookweed (1 species)
Samolus – water pimpernel (1 species)
Sandbergia (2 species)
Sanguisorba – burnet (3 species)
Sanicula – sanicle (5 species)
Saponaria – soapwort (2 species)
Sarcobatus – greasewood (1 species)
Sarcodon (11 species)
Sarcogyne (1 species)
Sarcoleotia (1 species)
Sarcoscypha (1 species)
Sarcosoma (1 species)
Sarcosphaera (1 species)
Sarea (1 species)
Sarracenia – pitcher-plant (3 species)
Sasa (1 species)
Saussurea – saw-wort (1 species)
Saxifraga – saxifrage (9 species)
Saxifragopsis – strawberry saxifrage (1 species)
Scandix – scandix (0 species)
Scapania (14 species)
Sceptridium – grape-fern (1 species)
Schaereria (1 species)
Schedonorus – fescue (2 species)
Schedonorus – tall fescue (2 species)
Schenella (1 species)
Scheuchzeria – scheuchzeria (1 species)
Schistochilopsis (2 species)
Schizachyrium – bluestem (1 species)
Schizophyllum (1 species)
Schizopora (1 species)
Schljakovia (1 species)
Schoenoplectus – bulrush (9 species)
Schoenoplectus – naked-stem bulrush (9 species)
Schoenoplectus – club-rush (9 species)
Scirpus – bulrush (4 species)
Scleranthus – knawel (1 species)
Sclerochloa – hardgrass (1 species)
Scleroderma (6 species)
Sclerolinon – hard flax (1 species)
Sclerophora (2 species)
Scleropoa (0 species)
Sclerotinia (1 species)
Scoliciosporum (3 species)
Scribneria (1 species)
Scrophularia – figwort (2 species)
Scutellaria – skullcap (3 species)
Scutellinia (4 species)
Scytinostroma (2 species)
Scytinostromella (2 species)
Scytinotus (1 species)
Sebacina (1 species)
Secale – rye (2 species)
Securigera – crown vetch (1 species)
Sedum – stonecrop (12 species)
Selaginella – lesser-clubmoss (4 species)
Selaginella – spike-moss (4 species)
Senecio – butterweed (12 species)
Senecio – groundsel (12 species)
Senecio – ragwort (12 species)
Sericocarpus – white-topped aster (2 species)
Serpula (2 species)
Setaria – bristlegrass (5 species)
Setaria – foxtail (5 species)
Shepherdia – buffalo-berry (1 species)
Sherardia – blue fieldmadder (1 species)
Sherardia – herb sherard (1 species)
Sherardia – spurwort (1 species)
Sibbaldia – sibbaldia (1 species)
Sidalcea – checker-mallow (6 species)
Sidalcea – sidalcea (6 species)
Sidera (1 species)
Sigridea (1 species)
Silene – campion (20 species)
Silene – catchfly (20 species)
Silene – wild pink (20 species)
Silene – silene (20 species)
Silybum – milk-thistle (1 species)
Sinapis (1 species)
Sistotrema (1 species)
Sisymbrium – hedgemustard (4 species)
Sisymbrium – tumblemustard (4 species)
Sisyrinchium – blue-eyed grass (6 species)
Sisyrinchium – sisyrinchium (6 species)
Sium – water-parsnip (1 species)
Skeletocutis (4 species)
Smardaea (1 species)
Smelowskia – smelowskia (2 species)
Smilax (0 species)
Solanum – nightshade (9 species)
Solenostoma (5 species)
Solidago – goldenrod (7 species)
Soliva – burrweed (1 species)
Solorina (4 species)
Sonchus – sow-thistle (3 species)
Sorbaria – false spirea (0 species)
Sorbus – mountain-ash (4 species)
Sorbus – service tree (4 species)
Sorbus – whitebeam (4 species)
Sorghum – sorghum (2 species)
Sowerbyella (1 species)
Sparassis (1 species)
Sparganium – bur-reed (5 species)
Spartina – cordgrass (7 species)
Spartium – Spanish broom (1 species)
Spathularia (1 species)
Spergula – spurry (1 species)
Spergularia – sandspurry (6 species)
Sphaeralcea – globe-mallow (2 species)
Sphaerobolus (2 species)
Sphaerocarpos (2 species)
Sphaeronaemella (1 species)
Sphaerophorus (3 species)
Sphaerophysa – Austrian peaweed (1 species)
Sphaerophysa – swainsona (1 species)
Sphenolobus (1 species)
Sphenopholis – prairie-grass (2 species)
Sphenopholis – wedgegrass (2 species)
Spilonema (1 species)
Spilonemella (1 species)
Spinacia (0 species)
Spinulum – bristly clubmoss (1 species)
Spinulum – stiff clubmoss (1 species)
Spiraea – meadowsweet (5 species)
Spiraea – spiraea (5 species)
Spiraea – spirea (5 species)
Spiranthes – ladies-tresses (3 species)
Spiranthes – pearl-twist (3 species)
Spirodela – greater duckweed (1 species)
Spongipellis (1 species)
Sporastatia (2 species)
Sporobolus – dropseed (5 species)
Squamanita (3 species)
Stachys – betony (6 species)
Stachys – hedge-nettle (6 species)
Stachys – woundwort (6 species)
Stagnicola (1 species)
Staurothele (3 species)
Steccherinum (4 species)
Stellaria – chickweed (13 species)
Stellaria – starwort (13 species)
Stellaria – stitchwort (13 species)
Stenocybe (4 species)
Stenotus – mock goldenweed (1 species)
Stephanomeria – wirelettuce (3 species)
Stereocaulon (15 species)
Stereopsis (1 species)
Stereum (5 species)
Sticta (5 species)
Stigmidium (1 species)
Strangospora (1 species)
Streptanthella – streptanthella (1 species)
Streptopus – twisted-stalk (3 species)
Strigosella (0 species)
Strobilurus (3 species)
Stropharia (12 species)
Struthiopteris – hard fern (1 species)
Stuckenia – pondweed (2 species)
Stypella (2 species)
Suaeda – seablite (3 species)
Subularia – awlwort (1 species)
Subulicystidium (1 species)
Suillus (23 species)
Suksdorfia – suksdorfia (1 species)
Sullivantia – coolwort (1 species)
Sullivantia – sullivantia (1 species)
Swertia – swertia (1 species)
Symphoricarpos – snowberry (4 species)
Symphyotrichum – aster (20 species)
Symphytum – comfrey (3 species)
Syringa – lilac (1 species)
Syzygiella (1 species)
Syzygospora (1 species)
Szczawinskia (1 species)
