| Vorschaubild | Art, Unterart oder Varietät | Familie |  | Fotos von | 
| Preview pict. | Species, Subspecies, or Variety | Family |  | Photos from | 
|  |  Sabulina \ Miere / Sandwort (9 Taxa + 1 Syn.) |  | Caryophyllaceae \ Nelkengew. / Campion Fam. |  |  | 
|  |  Sagina \ Mastkraut / Pearlwort (8 Taxa + 2 Syn.) |  | Caryophyllaceae \ Nelkengew. / Campion Fam. |  |  | 
|  |  Sagittaria \ Pfeilkraut / Arrowhead (2 Taxa) |  | Alismataceae \ Froschlöffelgew. / Water Plantain Fam.
 |  |  | 
|  |  Salicornia \ Gliedermelde, Queller / Glasswort (5 Taxa + 3 Syn.) |  | Chenopodiaceae \ Gänsefußgew. / Goosefoot Fam.
 |  |  | 
|  |  Salix \ Weide / Willow (54 Taxa + 14 Syn.) |  | Salicaceae \ Weidengewächse / Willow Fam. |  |  | 
|  | Salpichroa origanifolia \ Trompetenblume / Cock's Eggs |  | Solanaceae \ Nachtschattengew. / Nightshade Fam. |  | F | 
|  |  Salsola \ Salzkraut / Glasswort (4 Taxa + 4 Syn.) |  | Chenopodiaceae \ Gänsefußgew. / Goosefoot Fam.
 |  |  | 
|  |  Salvia \ Salbei / Sage, Clary (23 Taxa + 2 Syn.) |  | Lamiaceae \ Lippenblütler / Mint Fam. |  |  | 
|  | Salvinia natans \ Gemeiner Schwimmfarn / Floating Moss |  | Salviniaceae \ Schwimmfarne / Floating Fern Fam. |  | D | 
|  |  Sambucus \ Holunder / Elder (5 Taxa + 1 Syn.) |  | Caprifoliaceae \ Geißblattgew. / Honeysuckle Fam.
 |  |  | 
|  | Samolus valerandi \ Salzbunge / Brookweed |  | Primulaceae \ Primelgewächse / Primrose Fam. |  | Cor 
D 
F 
GR 
Kef 
NL 
Zyp | 
|  |  Sanguisorba \ Wiesenknopf / Burnet (5 Taxa + 3 Syn.) |  | Rosaceae \ Rosengewächse / Rose Fam. |  |  | 
|  |  Sanicula \ Sanikel / Sanicle (2 Taxa) |  | Apiaceae \ Doldenblütler / Umbellifers |  |  | 
|  | Santolina villosa \ Behaartes Heiligenkraut / Pubescent Cotton Lavender |  | Asteraceae \ Korbblütler / Composite Fam. |  | E | 
|  |  Saponaria \ Seifenkraut / Soapwort (6 Taxa + 1 Syn.) |  | Caryophyllaceae \ Nelkengew. / Campion Fam. |  |  | 
|  | Sarcocapnos enneaphylla \ Neunblättriger Dicksporn / Nine-Leaved Sarcocapnos |  | Fumariaceae \ Erdrauchgew. / Fumitory Fam. |  | E 
F | 
|  | Sarcocornia fruticosa −−> Salicornia fruticosa |  | Chenopodiaceae \ Gänsefußgew. / Goosefoot Fam.
 |  | GR 
Zyp | 
|  | Sarcopoterium spinosum \ Dornige Bibernelle, Dornige Becherblume / Thorny Burnet |  | Rosaceae \ Rosengewächse / Rose Fam. |  | Chi 
GR 
Kre 
Les 
Mal 
Rho 
Zyp | 
|  | Sargassum muticum \ Japanischer Beeren-Tang / Japweed |  | Fucaceae \ Braun-Algen / Seaweeds |  | I 
NL 
Sam | 
|  | Sarothamnus scoparius −−> Cytisus scoparius |  | Fabaceae \ Schmetterlingsblütler / Legumes |  | D 
F 
GR | 
|  |  Sasa \ Zwerg-Bambus / Bamboo (1 Taxon + 1 Syn.) |  | Poaceae \ Süßgräser / Grass Fam. |  |  | 
|  | Sasamorpha borealis \ Nordischer Zwerg-Bambus / Boreal Bamboo |  | Poaceae \ Süßgräser / Grass Fam. |  | D | 
|  |  Satureja \ Bohnenkraut / Savory (4 Taxa + 1 Syn.) |  | Lamiaceae \ Lippenblütler / Mint Fam. |  |  | 
|  |  Saussurea \ Alpenscharte / Saw-Wort, Saussurea (3 Taxa) |  | Asteraceae \ Korbblütler / Composite Fam. |  |  | 
|  |  Saxifraga \ Steinbrech / Saxifrage (56 Taxa + 5 Syn.) |  | Saxifragaceae \ Steinbrechgew. / Saxifrage Fam. |  |  | 
|  |  Scabiosa \ Skabiose / Scabious (12 Taxa + 3 Syn.) |  | Dipsacaceae \ Kardengewächse / Teasel Fam. |  |  | 
|  |  Scaligeria \ Erdkastanie / Scaligeria (2 Taxa + 1 Syn.) |  | Apiaceae \ Doldenblütler / Umbellifers |  |  | 
|  |  Scandix \ Venuskamm / Shepherd's Needle (4 Taxa + 1 Syn.) |  | Apiaceae \ Doldenblütler / Umbellifers |  |  | 
|  | Scandosorbus x intermedia −−> Sorbus intermedia |  | Rosaceae \ Rosengewächse / Rose Fam. |  | D 
S | 
|  |  Schedonorus \ Schwingel / Fescue (2 Syn.) |  | Poaceae \ Süßgräser / Grass Fam. |  |  | 
|  | Schenkia spicata −−> Centaurium spicatum |  | Gentianaceae \ Enziangew. / Gentian Fam. |  | GR | 
|  | Scheuchzeria palustris \ Blumenbinse, Blasensimse / Rannoch Rush, Marsh Scheuchzeria |  | Scheuchzeriaceae \ Blumenbinsengew. / Rannoch Rush Fam.
 |  | D 
S | 
|  | Schistostega pennata \ Leucht-Moos / Schistostega Moss |  | Musci \ Laubmoose / Mosses |  | D | 
|  | Schivereckia podolica −−> Draba hyperborea |  | Brassicaceae \ Kreuzblütler / Crucifers |  | D | 
|  | Schlagintweitia intybacea −−> Hieracium intybaceum |  | Asteraceae \ Korbblütler / Composite Fam. |  | A | 
|  | Schnarfia messeniaca −−> Scilla messeniaca |  | Liliaceae \ Liliengewächse / Lily Fam. |  | GR | 
|  |  Schoenoplectiella \ Teichsimse / Bulrush (2 Taxa) |  | Cyperaceae \ Sauergräser / Sedge Fam. |  |  | 
|  |  Schoenoplectus \ Teichsimse, Flechtbinse / Club-Rush (3 Taxa + 3 Syn.) |  | Cyperaceae \ Sauergräser / Sedge Fam. |  |  | 
|  |  Schoenus \ Kopfbinse / Bog-Rush (2 Taxa) |  | Cyperaceae \ Sauergräser / Sedge Fam. |  |  | 
|  |  Scilla \ Blaustern / Squill (26 Taxa + 5 Syn.) |  | Liliaceae \ Liliengewächse / Lily Fam. |  |  | 
|  | Scirpoides holoschoenus \ Kugelbinse / Round-Headed Club-Rush |  | Cyperaceae \ Sauergräser / Sedge Fam. |  | A 
F 
GR 
I 
Kre 
Les 
Sam | 
|  |  Scirpus \ Simse / Club-Rush (2 Taxa + 8 Syn.) |  | Cyperaceae \ Sauergräser / Sedge Fam. |  |  | 
|  |  Scleranthus \ Knäuelkraut / Knawel, Knotweed (3 Taxa) |  | Caryophyllaceae \ Nelkengew. / Campion Fam. |  |  | 
|  | Sclerochloa dura \ Gewöhnliches Hartgras / Common Hardgrass, Fairground Grass |  | Poaceae \ Süßgräser / Grass Fam. |  | A 
D 
F | 
|  | Scleropodium purum \ Gemeines Grünstängelmoos / Feather Moss |  | Musci \ Laubmoose / Mosses |  | D | 
|  |  Scolymus \ Golddistel / Golden Thistle (2 Taxa) |  | Asteraceae \ Korbblütler / Composite Fam. |  |  | 
|  |  Scorpiurus \ Skorpionsschwanz / Scorpion's Tail (2 Taxa) |  | Fabaceae \ Schmetterlingsblütler / Legumes |  |  | 
|  |  Scorzonera \ Schwarzwurzel / Viper's Grass (15 Taxa + 2 Syn.) |  | Asteraceae \ Korbblütler / Composite Fam. |  |  | 
|  |  Scorzoneroides \ Schuppenlöwenzahn / Hawkbit (6 Taxa + 2 Syn.) |  | Asteraceae \ Korbblütler / Composite Fam. |  |  | 
|  |  Scrophularia \ Braunwurz / Figwort (14 Taxa + 1 Syn.) |  | Scrophulariaceae \ Braunwurzgew. / Figwort Fam. |  |  | 
|  |  Scutellaria \ Helmkraut / Skullcap (11 Taxa) |  | Lamiaceae \ Lippenblütler / Mint Fam. |  |  | 
|  |  Secale \ Roggen / Rye (2 Taxa + 1 Syn.) |  | Poaceae \ Süßgräser / Grass Fam. |  |  | 
|  |  Securigera \ Beilwicke / Hatchet Vetch (4 Taxa) |  | Fabaceae \ Schmetterlingsblütler / Legumes |  |  | 
|  |  Sedum \ Mauerpfeffer, Asienfetthenne / Stonecrop (37 Taxa + 16 Syn.) |  | Crassulaceae \ Dickblattgew. / Stonecrop Fam. |  |  | 
|  |  Selaginella \ Moosfarn / Clubmoss (4 Taxa) |  | Selaginellaceae \ Moosfarngew. / Lesser Clubmoss Fam.
 |  |  | 
|  |  Selinum \ Silge, Brustwurz / Milk Parsley, Angelica (2 Taxa + 2 Syn.) |  | Apiaceae \ Doldenblütler / Umbellifers |  |  | 
|  |  Sempervivum \ Hauswurz / House-Leek (12 Taxa + 1 Syn.) |  | Crassulaceae \ Dickblattgew. / Stonecrop Fam. |  |  | 
|  |  Senecio \ Greiskraut, Kreuzkraut / Ragwort, Groundsel (38 Taxa + 20 Syn.) |  | Asteraceae \ Korbblütler / Composite Fam. |  |  | 
|  | Senna corymbosa \ Gewürzrinde, Kassie / Flowering Senna, Argentina Senna |  | Fabaceae \ Schmetterlingsblütler / Legumes |  | GR | 
|  | Sequoiadendron giganteum \ Riesen-Mammutbaum, Wellingtonie / Giant Sequoia, Giant Redwood |  | Cupressaceae \ Zypressengew. / Cypresse Fam. |  | D | 
|  | Seriphidium maritimum −−> Artemisia maritima |  | Asteraceae \ Korbblütler / Composite Fam. |  | D 
NL | 
|  |  Serratula \ Scharte / Saw Wort (1 Taxon + 1 Syn.) |  | Asteraceae \ Korbblütler / Composite Fam. |  |  | 
|  | Sesamoides pygmaea −−> Reseda phyteuma |  | Resedaceae \ Resedagewächse / Mignonette Fam. |  | F 
HR 
I | 
|  |  Seseli \ Bergfenchel, Sesel / Seseli (13 Taxa + 6 Syn.) |  | Apiaceae \ Doldenblütler / Umbellifers |  |  | 
|  |  Sesleria \ Blaugras / Moor Grass (5 Taxa) |  | Poaceae \ Süßgräser / Grass Fam. |  |  | 
|  |  Setaria \ Borstenhirse / Bristle Grass (7 Taxa + 3 Syn.) |  | Poaceae \ Süßgräser / Grass Fam. |  |  | 
|  | Sherardia arvensis \ Ackerröte / Field Madder |  | Rubiaceae \ Rötegewächse / Bedstraw Fam. |  | Cor 
D 
E 
HR 
Rho | 
|  | Shinnersia rivularis \ Mexikanisches Eichenblatt / Mexican Oakleaf, Rio Grande Bugheal |  | Asteraceae \ Korbblütler / Composite Fam. |  | A | 
|  | Sibbaldia procumbens \ Alpen-Gelbling / Creeping Sibbaldia |  | Rosaceae \ Rosengewächse / Rose Fam. |  | D 
F | 
|  | Sibiraea altaiensis subsp. croatica \ Kroatische Blau-Spiere / Croatian Sibirea |  | Rosaceae \ Rosengewächse / Rose Fam. |  | HR | 
|  | Sibthorpia africana \ Balearen-Geldwurz / Balearic Moneywort |  | Scrophulariaceae \ Braunwurzgew. / Figwort Fam. |  | Mal | 
|  | Sicyos angulatus \ Haar-Gurke / Bur Cucumber |  | Cucurbitaceae \ Gurkengewächse / Cucumber Fam. |  | A | 
|  |  Sideritis \ Gliedkraut / Ironwort (9 Taxa) |  | Lamiaceae \ Lippenblütler / Mint Fam. |  |  | 
|  | Sieglingia decumbens −−> Danthonia decumbens |  | Poaceae \ Süßgräser / Grass Fam. |  | D | 
|  | Silaum silaus \ Wiesen-Silge / Pepper Saxifrage |  | Apiaceae \ Doldenblütler / Umbellifers |  | D | 
|  |  Silene \ Leimkraut, Lichtnelke / Campion, Catchfly (65 Taxa + 7 Syn.) |  | Caryophyllaceae \ Nelkengew. / Campion Fam. |  |  | 
|  | Silphium perfoliatum \ Durchwachsene Silphie, Verwachsenblättrige Becherpflanze / Cup Plant |  | Asteraceae \ Korbblütler / Composite Fam. |  | D | 
|  | Silybum marianum \ Marien-Distel / Milk Thistle |  | Asteraceae \ Korbblütler / Composite Fam. |  | D 
F 
HR 
I 
Rho 
Ten | 
|  |  Sinapis \ Senf / Mustard (2 Taxa) |  | Brassicaceae \ Kreuzblütler / Crucifers |  |  | 
|  |  Sisymbrium \ Rauke / Rocket (10 Taxa + 1 Syn.) |  | Brassicaceae \ Kreuzblütler / Crucifers |  |  | 
|  |  Sisyrinchium \ Binsenlilie / Eyed Grass (3 Taxa) |  | Iridaceae \ Irisgewächse / Iris Fam. |  |  | 
|  | Sium latifolium \ Großer Merk, Breitblättriger Merk / Greater Water Parsnip |  | Apiaceae \ Doldenblütler / Umbellifers |  | A 
D | 
|  | Smilax aspera \ Stechwinde / Rough Bindweed |  | Liliaceae \ Liliengewächse / Lily Fam. |  | E 
F 
GR 
I 
Mal 
Zyp | 
|  |  Smyrnium \ Gelbdolde / Alexanders (4 Taxa + 2 Syn.) |  | Apiaceae \ Doldenblütler / Umbellifers |  |  | 
|  | Soda inermis −−> Salsola soda |  | Chenopodiaceae \ Gänsefußgew. / Goosefoot Fam.
 |  | GR | 
|  |  Solanum \ Nachtschatten / Nightshade (21 Taxa + 10 Syn.) |  | Solanaceae \ Nachtschattengew. / Nightshade Fam. |  |  | 
|  |  Soldanella \ Alpenglöckchen, Soldanelle / Snowbell, Soldanella (6 Taxa + 2 Syn.) |  | Primulaceae \ Primelgewächse / Primrose Fam. |  |  | 
|  | Soleirolia soleirolii \ Bubiköpfchen / Baby's Tears |  | Urticaceae \ Brennnesselgew. / Nettle Fam. |  | D | 
|  | Solenanthus apenninus −−> Cynoglossum apenninum |  | Boraginaceae \ Borretschgew. / Borrage Fam. |  | I | 
|  | Solenopsis bivonae \ Bivonas Zwerg-Lobelie / Bivona's Solenopsis |  | Campanulaceae \ Glockenblumengew. / Bellflower Fam. |  | Zyp | 
|  |  Solidago \ Goldrute / Goldenrod (6 Taxa) |  | Asteraceae \ Korbblütler / Composite Fam. |  |  | 
|  | Solorina saccata \ Sack-Flechte, Schrotschuss-Flechte / Chocolade Chip Lichen ? |  | Lecanorales \ Flechten / Lichens |  | I | 
|  |  Sonchus \ Gänsedistel / Sow-Thistle (12 Taxa + 3 Syn.) |  | Asteraceae \ Korbblütler / Composite Fam. |  |  | 
|  | Sophora japonica \ Japanischer Schnurbaum / Japanese Pagoda Tree |  | Fabaceae \ Schmetterlingsblütler / Legumes |  | D | 
|  | Sorbaria sorbifolia \ Sibirische Fiederspeere / Ural False Spiraea |  | Rosaceae \ Rosengewächse / Rose Fam. |  | D | 
|  |  Sorbus \ Mehlbeere / Whitebeam, Ash (58 Taxa + 4 Syn.) |  | Rosaceae \ Rosengewächse / Rose Fam. |  |  | 
|  |  Sorghum \ Mohrenhirse, Sorghumhirse / Millet (2 Taxa) |  | Poaceae \ Süßgräser / Grass Fam. |  |  | 
|  |  Sparganium \ Igelkolben / Bur-Reed (5 Taxa + 1 Syn.) |  | Sparganiaceae \ Igelkolbengew. / Bur-Reed Fam. |  |  | 
|  |  Spartina \ Fallsamengras, Vilfagras / Dropseed (2 Syn.) |  | Poaceae \ Süßgräser / Grass Fam. |  |  | 
|  | Spartium junceum \ Pfriemen-Ginster / Spanish Broom |  | Fabaceae \ Schmetterlingsblütler / Legumes |  | F 
I 
Rho 
Sam | 
|  |  Spergula \ Spörgel / Spurrey (3 Taxa) |  | Caryophyllaceae \ Nelkengew. / Campion Fam. |  |  | 
|  |  Spergularia \ Schuppenmiere, Spärkling / Spurrey (5 Taxa + 2 Syn.) |  | Caryophyllaceae \ Nelkengew. / Campion Fam. |  |  | 
|  | Sphaerocarpos spec1 \ Kugelfrucht-Lebermoos, Flaschen-Lebermoos / Balloonwort ? |  | Marchantiales \ Lebermoose / Liverworts |  | D | 
|  |  Sphagnum \ Torfmoos / Sphagnum, Bog Moss (16 Taxa + 1 Syn.) |  | Sphagnopsida \ Torfmoose / Bog Mosses |  |  | 
|  | Spinacia oleracea \ Spinat / Spinach |  | Chenopodiaceae \ Gänsefußgew. / Goosefoot Fam.
 |  | D 
E 
Kre | 
|  |  Spiraea \ Spierstrauch / Meadowsweet (8 Taxa + 2 Syn.) |  | Rosaceae \ Rosengewächse / Rose Fam. |  |  | 
|  | Spirobassia hirsuta −−> Bassia hirsuta |  | Chenopodiaceae \ Gänsefußgew. / Goosefoot Fam.
 |  | F | 
|  | Spirodela polyrhiza \ Vielwurzelige Teichlinse / Greater Duckweed |  | Lemnaceae \ Wasserlinsengew. / Duckweed Fam. |  | D 
S | 
|  |  Sporobolus \ Fallsamengras, Vilfagras / Dropseed (7 Taxa) |  | Poaceae \ Süßgräser / Grass Fam. |  |  | 
|  |  Squilla \ Meerzwiebel / Sea Squill (4 Syn.) |  | Liliaceae \ Liliengewächse / Lily Fam. |  |  | 
|  |  Stachys \ Ziest / Woundwort (27 Taxa + 5 Syn.) |  | Lamiaceae \ Lippenblütler / Mint Fam. |  |  | 
|  |  Staehelina \ Strauchscharte / Staehelina, Gorge Laurel (2 Taxa + 1 Syn.) |  | Asteraceae \ Korbblütler / Composite Fam. |  |  | 
|  | Staphisagria macrosperma \ Stephanskraut, Mittelmeer-Rittersporn / Stavesacre |  | Ranunculaceae \ Hahnenfußgew. / Buttercup Fam. |  | Chi 
GR 
Kef 
Kre | 
|  | Staphylea pinnata \ Pimpernuss / Bladdernut |  | Staphyleaceae \ Pimpernussgew. / Bladdernut Fam. |  | A 
D 
HR | 
|  |  Stellaria \ Sternmiere / Stitchwort, Chickweed (12 Taxa + 4 Syn.) |  | Caryophyllaceae \ Nelkengew. / Campion Fam. |  |  | 
|  |  Stemmacantha \ Bergscharte / Knapweed, Thistle (2 Syn.) |  | Asteraceae \ Korbblütler / Composite Fam. |  |  | 
|  | Steptorhamphus tuberosus −−> Lactuca tuberosa |  | Asteraceae \ Korbblütler / Composite Fam. |  | GR | 
|  |  Sternbergia \ Sternbergie, Goldkrokus / Autumn Crocus, Sternbergia (2 Taxa) |  | Amaryllidaceae \ Narzissengew. / Amaryllis Fam. |  |  | 
|  |  Stipa \ Federgras / Feather-Grass, Needle Grass (10 Taxa + 3 Syn.) |  | Poaceae \ Süßgräser / Grass Fam. |  |  | 
|  | Stipellula capensis \ Gedrehtes Federgras, Kap-Federgras / Mediterranean Needle Grass |  | Poaceae \ Süßgräser / Grass Fam. |  | Chi 
Rho | 
|  | Strangweja spicata −−> Bellevalia hyacinthoides |  | Liliaceae \ Liliengewächse / Lily Fam. |  | GR | 
|  | Stratiotes aloides \ Krebsschere, Wasser-Aloe / Water Soldier |  | Hydrocharitaceae \ Froschbissgew. / Frogbit Fam. |  | D | 
|  | Streptopus amplexifolius \ Knotenfuß / Twisted Stalk |  | Liliaceae \ Liliengewächse / Lily Fam. |  | D | 
|  | Stuckenia pectinata −−> Potamogeton pectinatus |  | Potamogetonaceae \ Laichkrautgew. / Pontweed Fam. |  | D | 
|  | Styphnolobium japonicum −−> Sophora japonica |  | Fabaceae \ Schmetterlingsblütler / Legumes |  | D | 
|  | Styrax officinalis \ Echter Styraxbaum / Styrax Tree |  | Styracaceae \ Storaxgew. / Styrax Fam. |  | Kre 
Rho 
Sam 
Zyp | 
|  |  Suaeda \ Sode / Sea Blite, Seepweed (5 Taxa + 1 Syn.) |  | Chenopodiaceae \ Gänsefußgew. / Goosefoot Fam.
 |  |  | 
|  | Succisa pratensis \ Teufelsabbiss / Devil's-bit Scabious |  | Dipsacaceae \ Kardengewächse / Teasel Fam. |  | A 
D 
F 
IRL 
S | 
|  | Succisella inflexa \ Eingebogener Moorabbiss, Sumpfabbiss / Southern Succisella |  | Dipsacaceae \ Kardengewächse / Teasel Fam. |  | D 
SLO | 
|  |  Sulla \ Süßklee / Sweetvetch (2 Syn.) |  | Fabaceae \ Schmetterlingsblütler / Legumes |  |  | 
|  | Sutera cordata −−> Chaenostoma cordatum |  | Scrophulariaceae \ Braunwurzgew. / Figwort Fam. |  | D 
F | 
|  | Swertia perennis \ Sumpf-Enzian, Tarant / Marsh Felwort |  | Gentianaceae \ Enziangew. / Gentian Fam. |  | A 
CH 
D 
F | 
|  |  Symphoricarpos \ Korallenbeere / Coralberry (2 Taxa + 1 Syn.) |  | Caprifoliaceae \ Geißblattgew. / Honeysuckle Fam.
 |  |  | 
|  |  Symphyotrichum \ Herbst-Aster, Aster / Michaelmas Daisy, Aster (10 Taxa + 3 Syn.) |  | Asteraceae \ Korbblütler / Composite Fam. |  |  | 
|  |  Symphytum \ Beinwell, Wallwurz / Comfrey (13 Taxa + 5 Syn.) |  | Boraginaceae \ Borretschgew. / Borrage Fam. |  |  | 
|  |  Syntrichia \ Drehzahnmoos / Star Moss (2 Syn.) |  | Musci \ Laubmoose / Mosses |  |  | 
|  |  Syringa \ Flieder / Lilac (2 Taxa + 1 Syn.) |  | Oleaceae \ Ölbaumgewächse / Ash Fam. |  |  | 
|  | sabauda, Brassica oleracea var. \ Wirsing, Welsch-Kraut / Savoy Cabbage |  | Brassicaceae \ Kreuzblütler / Crucifers |  | D | 
|  | sabaudum subsp. vagum, Hieracium \ Unbeständiges Savoyer Habichtskraut / Glabrous-Headed Hawkweed |  | Asteraceae \ Korbblütler / Composite Fam. |  | D 
F | 
|  | sabaudum, Hieracium \ Savoyer Habichtskraut / Savoy Hawkweed |  | Asteraceae \ Korbblütler / Composite Fam. |  | D | 
|  | sabellica, Brassica oleracea var. \ Grünkohl, Krauskohl / Borecole, Curly Cole |  | Brassicaceae \ Kreuzblütler / Crucifers |  | D | 
|  | sabina, Juniperus \ Stink-Wacholder, Sadebaum / Rock Cedar, Savin |  | Cupressaceae \ Zypressengew. / Cypresse Fam. |  | A 
F | 
|  | sabulicola, Echium \ Strand-Natternkopf / Coastal Viper's Bugloss |  | Boraginaceae \ Borretschgew. / Borrage Fam. |  | F 
Siz | 
|  | saccata, Solorina \ Sack-Flechte, Schrotschuss-Flechte / Chocolade Chip Lichen ? |  | Lecanorales \ Flechten / Lichens |  | I | 
|  | saccharatum, Xanthium \ Zucker-Spitzklette / Canada Cocklebur |  | Asteraceae \ Korbblütler / Composite Fam. |  | D | 
|  | sacchariflorus, Miscanthus \ Silberfahnen-Gras, Großes Stielblüten-Gras / Amur Silver Grass |  | Poaceae \ Süßgräser / Grass Fam. |  | D | 
|  | saccharinum, Acer \ Silber-Ahorn / Silver Maple |  | Aceraceae \ Ahorngewächse / Maple Fam. |  | D 
F | 
|  |  sachalinensis (1 Taxon + 4 Syn.) |  |  |  |  | 
|  |  sadleriana (1 Taxon + 1 Syn.) |  |  |  |  | 
|  | saginoides, Sagina \ Alpen-Mastkraut / Alpine Pearlwort |  | Caryophyllaceae \ Nelkengew. / Campion Fam. |  | A 
D 
F | 
|  | sagittale, Chamaespartium −−> Genista sagittalis |  | Fabaceae \ Schmetterlingsblütler / Legumes |  | D 
F 
HR 
I | 
|  | sagittalis, Genista \ Flügel-Ginster / Pennate Greenweed |  | Fabaceae \ Schmetterlingsblütler / Legumes |  | D 
F 
HR 
I | 
|  |  sagittata (2 Taxa) |  |  |  |  | 
|  | sagittifolia, Sagittaria \ Gewöhnliches Pfeilkraut / Arrowhead |  | Alismataceae \ Froschlöffelgew. / Water Plantain Fam.
 |  | A 
D 
F | 
|  | salamandra, Silene \ Rhodisches Leimkraut / Rhodian Catchfly |  | Caryophyllaceae \ Nelkengew. / Campion Fam. |  | Rho | 
|  | salicaria, Lythrum \ Blut-Weiderich / Purple Loosestrife |  | Lythraceae \ Weiderichgew. / Purple Loosestrife Fam. |  | D 
GR 
IRL 
S | 
|  |  salicifolia (1 Taxon + 1 Syn.) |  |  |  |  | 
|  |  salicifolium (2 Taxa) |  |  |  |  | 
|  | salicifolius subsp. triangulivalvis, Rumex −−> Rumex triangulivalvis |  | Polygonaceae \ Knöterichgew. / Knotweed Fam. |  | D 
NL | 
|  | salicifolius, Cotoneaster −−> Cotoneaster sargentii |  | Rosaceae \ Rosengewächse / Rose Fam. |  | D | 
|  | salicina, Inula −−> Pentanema salicinum |  | Asteraceae \ Korbblütler / Composite Fam. |  | A 
D 
HR | 
|  | salicinum, Pentanema \ Weidenblättriger Alant / Irish Fleabane |  | Asteraceae \ Korbblütler / Composite Fam. |  | A 
D 
HR | 
|  |  saligna (2 Taxa) |  |  |  |  | 
|  | salignum, Symphyotrichum x \ Weidenblättrige Herbst-Aster / Glaucous Michaelmas Daisy, Smooth Blue Aster |  | Asteraceae \ Korbblütler / Composite Fam. |  | D | 
|  | salignus, Aster x −−> Symphyotrichum x salignum |  | Asteraceae \ Korbblütler / Composite Fam. |  | D | 
|  | salina, Spergularia −−> Spergularia marina |  | Caryophyllaceae \ Nelkengew. / Campion Fam. |  | D 
F 
NL 
S 
Zyp | 
|  | salisburgensis, Euphrasia \ Salzburger Augentrost / Irish Eyebright |  | Scrophulariaceae \ Braunwurzgew. / Figwort Fam. |  | A 
D 
E 
IRL | 
|  | saliunca, Valeriana \ Weidenblättriger Baldrian / Entire-Leaved Valerian |  | Valerianaceae \ Baldriangew. / Valerian Fam. |  | F | 
|  | salmantica, Mantisalca \ Salamanca-Flockenblume / Salamanca Knapweed |  | Asteraceae \ Korbblütler / Composite Fam. |  | E 
F | 
|  | salsoloides, Campylanthus \ Kanaren-Krummblüte / Campylanthus |  | Scrophulariaceae \ Braunwurzgew. / Figwort Fam. |  | Ten | 
|  | salviae, Orobanche \ Salbei-Sommerwurz / Sage Broomrape |  | Orobanchaceae \ Sommerwurzgew. / Broomrape Fam. |  | A 
D 
HR 
SLO | 
|  | salviifolia, Stachys \ Salbeiblättriger Ziest / Sage-Leaved Woundwort |  | Lamiaceae \ Lippenblütler / Mint Fam. |  | I | 
|  | salviifolius, Cistus \ Salbeiblättrige Zistrose / Sage-Leaved Rock-Rose |  | Cistaceae \ Zistrosengew. / Rockrose Fam. |  | Chi 
Cor 
E 
F 
GR 
I 
Kre 
Les 
Rho | 
|  | salzmannii, Genista \ Salzmanns Ginster / Salzmann's Broom |  | Fabaceae \ Schmetterlingsblütler / Legumes |  | Cor | 
|  | samaritani, Tragopogon \ Samaritanis Bocksbart / Samaritani's Goat's-Beard |  | Asteraceae \ Korbblütler / Composite Fam. |  | GR | 
|  | sambucina, Iris \ Holunder-Schwertlilie / Elder-Scented Iris |  | Iridaceae \ Irisgewächse / Iris Fam. |  | D | 
|  | samia, Aristolochia −−> Aristolochia incisa |  | Aristolochiaceae \ Osterluzeigew. / Birthwort Fam. |  | Sam | 
|  | samium, Limonium \ Samos-Strandflieder / Samos Sea Lavender ? |  | Plumbaginaceae \ Bleiwurzgew. / Thrift Fam. |  | Sam | 
|  |  sanamunda (1 Taxon + 1 Syn.) |  |  |  |  | 
|  | sancta, Crepis \ Hasensalat / Holy's Hawk's-Beard |  | Asteraceae \ Korbblütler / Composite Fam. |  | F 
HR 
I 
Rho | 
|  |  sanctus (1 Taxon + 1 Syn.) |  |  |  |  | 
|  | sanguinalis, Digitaria \ Blutrote Fingerhirse / Hairy Finger-Grass |  | Poaceae \ Süßgräser / Grass Fam. |  | D | 
|  |  sanguinea (2 Taxa) |  |  |  |  | 
|  |  sanguineum (2 Taxa) |  |  |  |  | 
|  |  sanguineus (3 Taxa) |  |  |  |  | 
|  | santonicum, Artemisia \ Salzsteppen-Wermut, Ungarischer Beifuß / Saline Wormwood |  | Asteraceae \ Korbblütler / Composite Fam. |  | A | 
|  | sarachoides, Solanum \ Saracha-Nachtschatten / Saracha Nightshade |  | Solanaceae \ Nachtschattengew. / Nightshade Fam. |  | D | 
|  | saratoi, Euphorbia \ Schein-Ruten-Wolfsmilch / Twiggy Spurge |  | Euphorbiaceae \ Wolfsmilchgew. / Spurge Fam. |  | D 
F | 
|  | sarcophylla, Plantago \ Fleischblatt-Wegerich / Flesh-Leaf Plantain |  | Plantaginaceae \ Wegerichgew. / Plantain Fam. |  | Zyp | 
|  |  sardensis (1 Taxon + 1 Syn.) |  |  |  |  | 
|  | sardous, Ranunculus \ Sardischer Hahnenfuß, Rauher Hahnenfuß / Hairy Buttercup |  | Ranunculaceae \ Hahnenfußgew. / Buttercup Fam. |  | Cor 
D 
HR 
I 
Mal 
Rho 
SLO 
Sam | 
|  | sargentii, Cotoneaster \ Immergrüne Strauchmispel, Weidenblättrige Felsenmispel / Scarlet Leader Willowleaf |  | Rosaceae \ Rosengewächse / Rose Fam. |  | D | 
|  | sarracenicus, Senecio −−> Senecio fluviatilis |  | Asteraceae \ Korbblütler / Composite Fam. |  | D | 
|  | sarrachoides, Solanum −−> Solanum sarachoides |  | Solanaceae \ Nachtschattengew. / Nightshade Fam. |  | D | 
|  | sartorianus, Ranunculus \ Sartorius' Hahnenfuß / Sartorius' Buttercup |  | Ranunculaceae \ Hahnenfußgew. / Buttercup Fam. |  | GR | 
|  | sativa subsp. incisa, Vicia \ Eingeschnittene Wicke / Incised Vetch ? |  | Fabaceae \ Schmetterlingsblütler / Legumes |  | GR 
Rho | 
|  | sativa subsp. nigra, Vicia −−> Vicia angustifolia |  | Fabaceae \ Schmetterlingsblütler / Legumes |  | A 
Cor 
D 
F 
Mal | 
|  | sativa subsp. segetalis, Vicia −−> Vicia segetalis |  | Fabaceae \ Schmetterlingsblütler / Legumes |  | Cor 
D 
GR 
I 
Kre 
Mal | 
|  | sativa subsp. urens, Pastinaca \ Brennender Pastinak / Stinging Parsnip |  | Apiaceae \ Doldenblütler / Umbellifers |  | D | 
|  | sativa var. cosentini, Vicia \ Cosentinis Wicke / Cosentini's Vetch |  | Fabaceae \ Schmetterlingsblütler / Legumes |  | Kre 
Rho | 
|  | sativa var. sativa, Vicia \ Saat-Wicke, Echte Futter-Wicke / Common Vetch |  | Fabaceae \ Schmetterlingsblütler / Legumes |  | D 
F 
GR 
HR 
I 
Kre 
Mal 
Rho 
Sam | 
|  | sativa var. spontanea, Cannabis \ Wilder Hanf / Wild Hemp |  | Cannabaceae \ Hanfgewächse / Hop Fam. |  | A | 
|  |  sativa (9 Taxa + 2 Syn.) |  |  |  |  | 
|  | sativum subsp. elatius, Pisum −−> Lathyrus oleraceus subsp. biflorus |  | Fabaceae \ Schmetterlingsblütler / Legumes |  | Chi 
D 
GR 
HR 
I 
Les 
Rho | 
|  | sativum subsp. sativum, Pisum −−> Lathyrus oleraceus var. oleraceus |  | Fabaceae \ Schmetterlingsblütler / Legumes |  | D 
Zyp | 
|  |  sativum (3 Taxa + 2 Syn.) |  |  |  |  | 
|  | sativus subsp. oleiferus, Raphanus −−> Raphanus sativus var. oleiformis |  | Brassicaceae \ Kreuzblütler / Crucifers |  | D | 
|  | sativus var. oleiformis, Raphanus \ Öl-Rettich / Oil Radish, Fodder Radish |  | Brassicaceae \ Kreuzblütler / Crucifers |  | D | 
|  |  sativus (7 Taxa + 1 Syn.) |  |  |  |  | 
|  | satureiifolia, Veronica −−> Veronica prostrata subsp. scheereri |  | Scrophulariaceae \ Braunwurzgew. / Figwort Fam. |  | D 
F | 
|  | saxatile subsp. creticum, Aethionema \ Kretisches Steintäschel / Cretan Candytuft |  | Brassicaceae \ Kreuzblütler / Crucifers |  | Sam | 
|  | saxatile subsp. graecum, Aethionema \ Griechisches Steintäschel / Greek Candytuft |  | Brassicaceae \ Kreuzblütler / Crucifers |  | GR | 
|  | saxatile subsp. oreophilum, Aethionema −−> Aethionema saxatile subsp. graecum |  | Brassicaceae \ Kreuzblütler / Crucifers |  | GR | 
|  |  saxatile (3 Taxa) |  |  |  |  | 
|  | saxatilis subsp. infectoria, Rhamnus \ Kreuzdorn / Buckthorn |  | Rhamnaceae \ Kreuzdorngew. / Buckthorn Fam. |  | I | 
|  | saxatilis subsp. orientalis, Aurinia \ Östliches Felsen-Steinkraut / Basket of Gold, Goldentuft Alyssum |  | Brassicaceae \ Kreuzblütler / Crucifers |  | Chi 
GR 
Kef 
Sam | 
|  | saxatilis subsp. saxatilis, Aurinia \ Felsen-Steinkraut / Basket of Gold, Goldentuft Alyssum |  | Brassicaceae \ Kreuzblütler / Crucifers |  | D 
GR | 
|  |  saxatilis (14 Taxa + 5 Syn.) |  |  |  |  | 
|  |  saxifraga (3 Taxa) |  |  |  |  | 
|  | scaber subsp. cutandae, Dianthus −−> Dianthus legionensis |  | Caryophyllaceae \ Nelkengew. / Campion Fam. |  | E | 
|  | scaber, Dianthus \ Raue Nelke / Rough Pink ? |  | Caryophyllaceae \ Nelkengew. / Campion Fam. |  | And | 
|  | scabiosa subsp. alpestris, Centaurea \ Alpen-Skabiosen-Flockenblume / Alpine Knapweed |  | Asteraceae \ Korbblütler / Composite Fam. |  | F | 
|  | scabiosa subsp. badensis, Centaurea \ Badener Skabiosen-Flockenblume / Baden Knapweed |  | Asteraceae \ Korbblütler / Composite Fam. |  | A | 
|  | scabiosa subsp. sadleriana, Centaurea −−> Centaurea sadleriana |  | Asteraceae \ Korbblütler / Composite Fam. |  | A | 
|  | scabiosa, Centaurea \ Skabiosen-Flockenblume / Greater Knapweed |  | Asteraceae \ Korbblütler / Composite Fam. |  | A 
D 
E 
F 
GB 
HR 
I | 
|  |  scabra (6 Taxa) |  |  |  |  | 
|  | scabriculmis subsp. luedii, Festuca \ Lüdis Schwingel / Luedi's Fescue |  | Poaceae \ Süßgräser / Grass Fam. |  | CH | 
|  | scabriuscula, Rosa \ Kratz-Rose / Roughish Rose |  | Rosaceae \ Rosengewächse / Rose Fam. |  | D | 
|  | scabrosus, Rubus \ Weser-Haselblatt-Brombeere, Kratzige Haselblatt-Brombeere / Weser Bramble |  | Rosaceae \ Rosengewächse / Rose Fam. |  | D | 
|  | scabrum, Trifolium \ Rauer Klee / Rough Clover |  | Fabaceae \ Schmetterlingsblütler / Legumes |  | F 
HR 
I 
Kre 
Les 
Mal 
Rho 
Sam 
Zyp | 
|  |  scandens (2 Taxa) |  |  |  |  | 
|  | scandinavica, Oenothera \ Skandinavische Nachtkerze / Scandinavian Evening Primrose ? |  | Onagraceae \ Nachtkerzengew. / Willowherb Fam. |  | D | 
|  | scanicum, Taraxacum \ Schonen-Löwenzahn / Scania Dandelion |  | Asteraceae \ Korbblütler / Composite Fam. |  | D | 
|  | scaposum, Cerastium \ Schaft-Hornkraut / Scapose Mouse-Ear |  | Caryophyllaceae \ Nelkengew. / Campion Fam. |  | Kre | 
|  | scardica, Veronica \ Balkan-Ehrenpreis, Serpentin-Ehrenpreis / Balkan Speedwell |  | Scrophulariaceae \ Braunwurzgew. / Figwort Fam. |  | D | 
|  | scariosa, Taraxacum sect. \ Membran-Löwenzahn / Membranous Dandelion |  | Asteraceae \ Korbblütler / Composite Fam. |  | GR | 
|  | scariosum subsp. rhaponticum, Rhaponticum \ Alpen-Bergscharte, Riesen-Flockenblume / Giant Knapweed |  | Asteraceae \ Korbblütler / Composite Fam. |  | F 
I | 
|  | sceleratus, Ranunculus \ Gift-Hahnenfuß / Celery-Leaved Buttercup |  | Ranunculaceae \ Hahnenfußgew. / Buttercup Fam. |  | A 
D 
F 
NL 
S | 
|  | sceptrum-carolinum, Pedicularis \ Karlszepter-Läusekraut, Moorkönig / Moor King, Lousewort |  | Scrophulariaceae \ Braunwurzgew. / Figwort Fam. |  | D | 
|  | scheereri, Veronica prostrata subsp. \ Scheerers Ehrenpreis / Scheerer's Speedwell |  | Scrophulariaceae \ Braunwurzgew. / Figwort Fam. |  | D 
F | 
|  | scheuchzeri subsp. columnae, Phyteuma \ Horn-Teufelskralle / Horn Rampion |  | Campanulaceae \ Glockenblumengew. / Bellflower Fam. |  | HR | 
|  | scheuchzeri subsp. ficarioides, Campanula −−> Campanula ficarioides
 ? |  | Campanulaceae \ Glockenblumengew. / Bellflower Fam. |  | F | 
|  | scheuchzeri subsp. scheuchzeri, Phyteuma \ Horn-Teufelskralle / Oxford Rampion |  | Campanulaceae \ Glockenblumengew. / Bellflower Fam. |  | I | 
|  |  scheuchzeri (3 Taxa) |  |  |  |  | 
|  | schlechtendalii, Rubus \ Schlechtendals Brombeere / Schlechtendal's Bramble |  | Rosaceae \ Rosengewächse / Rose Fam. |  | D | 
|  |  schleicheri (1 Taxon + 1 Syn.) |  |  |  |  | 
|  | schmidtii agg., Hieracium \ Blasses Habichtskraut / Schmidt's Hawkweed |  | Asteraceae \ Korbblütler / Composite Fam. |  | D 
E 
F 
HR | 
|  | schnedleri, Rubus \ Schnedlers Brombeere / Schnedler's Bramble |  | Rosaceae \ Rosengewächse / Rose Fam. |  | D | 
|  | schneebergensis, Pulsatilla alpina subsp. \ Schneeberger Alpen-Kuhschelle / Schneeberg Alpine Pasque-Flower |  | Ranunculaceae \ Hahnenfußgew. / Buttercup Fam. |  | A | 
|  |  schnizleiniana (1 Taxon + 1 Syn.) |  |  |  |  | 
|  | schoenoprasum, Allium \ Schnitt-Lauch / Chives |  | Liliaceae \ Liliengewächse / Lily Fam. |  | A 
And 
D 
F | 
|  | scholzii, Bromus \ Flaum-Trespe / Soft Brome |  | Poaceae \ Süßgräser / Grass Fam. |  | D | 
|  |  schottii (1 Taxon + 2 Syn.) |  |  |  |  | 
|  | schouwii, Centaurea solstitialis subsp. −−> Centaurea sicula |  | Asteraceae \ Korbblütler / Composite Fam. |  | Siz | 
|  | schraderiana, Dysphania \ Schraders Drüsengänsefuß / Schrader's Goosefoot |  | Chenopodiaceae \ Gänsefußgew. / Goosefoot Fam.
 |  | D | 
|  | schraderianum, Chenopodium −−> Dysphania schraderiana |  | Chenopodiaceae \ Gänsefußgew. / Goosefoot Fam.
 |  | D | 
|  | schreberi, Pleurozium \ Rotstängel-Moos / Schreber's Feathermoss |  | Musci \ Laubmoose / Mosses |  | S | 
|  | schriesheimense, Asplenium ruta-muraria var. \ Schriesheimer Mauerraute / Schriesheim Wall-Rue |  | Pteridopsida \ Echte Farne / True Ferns |  | D | 
|  | schultesii, Solanum nigrum subsp. \ Schultes' Nachtschatten, Täuschender Nachtschatten / Schultes's Nightshade |  | Solanaceae \ Nachtschattengew. / Nightshade Fam. |  | D | 
|  |  schultzii (2 Taxa + 1 Syn.) |  |  |  |  | 
|  |  schumacheri (2 Taxa) |  |  |  |  | 
|  |  schuwerkiorum (1 Taxon + 1 Syn.) |  |  |  |  | 
|  |  schwarziana (1 Taxon + 1 Syn.) |  |  |  |  | 
|  | schweinfurthii, Lycium \ Schweinfurths Bocksdorn / Schweinfurth's Tea-Plant |  | Solanaceae \ Nachtschattengew. / Nightshade Fam. |  | Kre 
Rho 
Zyp | 
|  | Scilla bifolia, Chionodoxa luciliae x siehei x −−> Scilla bifolia x luciliae x siehei |  | Liliaceae \ Liliengewächse / Lily Fam. |  | D | 
|  | scilloides, Puschkinia \ Schein-Scilla / Russian Snowdrop |  | Liliaceae \ Liliengewächse / Lily Fam. |  | D | 
|  | sciocharis, Rubus \ Schattenliebende Brombeere / Shadow Bramble |  | Rosaceae \ Rosengewächse / Rose Fam. |  | D | 
|  | sclarea, Salvia \ Muskateller-Salbei / Clary Sage |  | Lamiaceae \ Lippenblütler / Mint Fam. |  | D 
F 
GR | 
|  | sclerocarpa, Silene \ Hartfrüchtiges Leimkraut / Hardfruit Catchfly |  | Caryophyllaceae \ Nelkengew. / Campion Fam. |  | Mal | 
|  |  scolopendrium (1 Taxon + 1 Syn.) |  |  |  |  | 
|  | scolymus, Cynara cardunculus var. \ Artischocke / Globe Artichoke, Cardoon |  | Asteraceae \ Korbblütler / Composite Fam. |  | Chi 
D 
GR | 
|  |  scoparia (3 Taxa) |  |  |  |  | 
|  | scoparium, Dicranum \ Gewöhnliches Gabelzahnmoos, Besen-Gabelzahnmoos / Broom Moss |  | Musci \ Laubmoose / Mosses |  | A 
D | 
|  |  scoparius (2 Taxa + 1 Syn.) |  |  |  |  | 
|  | scopoliana, Arabis \ Krainer Gänsekresse / Scopoli's Rock-Cress |  | Brassicaceae \ Kreuzblütler / Crucifers |  | HR | 
|  | scopulicolum, Helianthemum \ Mallorquinisches Sonnenröschen / Mallorca Rock-Rose |  | Cistaceae \ Zistrosengew. / Rockrose Fam. |  | Mal | 
|  | scordioides, Teucrium scordium subsp. \ Lauch-Gamander / Water Germander |  | Lamiaceae \ Lippenblütler / Mint Fam. |  | Rho | 
|  | scordium subsp. scordioides, Teucrium \ Lauch-Gamander / Water Germander |  | Lamiaceae \ Lippenblütler / Mint Fam. |  | Rho | 
|  | scordium, Teucrium \ Knoblauch-Gamander / Water Germander |  | Lamiaceae \ Lippenblütler / Mint Fam. |  | D 
HR 
I 
S | 
|  | scorodonia, Teucrium \ Salbei-Gamander / Wood Sage |  | Lamiaceae \ Lippenblütler / Mint Fam. |  | D 
IRL | 
|  | scorodoprasum, Allium \ Schlangen-Lauch / Sand Leek |  | Liliaceae \ Liliengewächse / Lily Fam. |  | D | 
|  | scorpioides agg., Myosotis \ Sumpf-Vergissmeinnicht / Water Forget-me-not |  | Boraginaceae \ Borretschgew. / Borrage Fam. |  | D 
F 
HR 
IRL | 
|  |  scorpioides (2 Taxa + 2 Syn.) |  |  |  |  | 
|  | scorpiuroides, Viola \ Skorpions-Veilchen / Scorpion Violet |  | Violaceae \ Veilchengewächse / Violet Fam. |  | Kre | 
|  | scorpius, Genista \ Skorpion-Ginster / Scorpion Broom |  | Fabaceae \ Schmetterlingsblütler / Legumes |  | F | 
|  | scorzonerifolia, Gypsophila \ Schwarzwurzel-Gipskraut / Garden Baby's Breath |  | Caryophyllaceae \ Nelkengew. / Campion Fam. |  | D | 
|  |  scorzonerifolium (2 Taxa) |  |  |  |  | 
|  |  scotophylla (1 Taxon + 1 Syn.) |  |  |  |  | 
|  | scrobiculata, Lobaria \ Blaugraue Lungenflechte / Textured Lungwort ? |  | Lecanorales \ Flechten / Lichens |  | D | 
|  | scutatus, Rumex \ Schild-Ampfer / French Sorrel |  | Polygonaceae \ Knöterichgew. / Knotweed Fam. |  | A 
CH 
D 
E 
F 
HR 
I 
SLO | 
|  |  scutellata (2 Taxa) |  |  |  |  | 
|  | secalina, Carex \ Roggen-Segge / Rye Sedge |  | Cyperaceae \ Sauergräser / Sedge Fam. |  | A 
D | 
|  | secalinus, Bromus \ Roggen-Trespe / Cheat Grass, Chess Grass |  | Poaceae \ Süßgräser / Grass Fam. |  | D | 
|  | secunda, Orthilia \ Birngrün, Nickendes Wintergrün / Serrated Winter Green |  | Pyrolaceae \ Wintergrüngew. / Wintergreen Fam. |  | A 
D 
F 
HR | 
|  | secundiflora, Silene \ Einseitswendiges Leimkraut / Secund Catchfly |  | Caryophyllaceae \ Nelkengew. / Campion Fam. |  | Mal | 
|  |  securidaca (1 Taxon + 1 Syn.) |  |  |  |  | 
|  | sedenense, Helictotrichon \ Seyne-Wiesenhafer / Seyne Oat Grass |  | Poaceae \ Süßgräser / Grass Fam. |  | F | 
|  | sedifolia, Galatella \ Raue Aster, Steppen-Aster / Rhone Aster |  | Asteraceae \ Korbblütler / Composite Fam. |  | F 
I | 
|  | sedifolius subsp. canus, Aster −−> Galatella cana |  | Asteraceae \ Korbblütler / Composite Fam. |  | A | 
|  | sedifolius, Aster −−> Galatella sedifolia |  | Asteraceae \ Korbblütler / Composite Fam. |  | F 
I | 
|  | sediforme, Sedum \ Nizza-Mauerpfeffer / Pale Stonecrop |  | Crassulaceae \ Dickblattgew. / Stonecrop Fam. |  | E 
F 
I 
Sam 
Zyp | 
|  |  sedoides (3 Taxa + 1 Syn.) |  |  |  |  | 
|  | seemenii, Anemone x −−> Anemone nemorosa x ranunculoides |  | Ranunculaceae \ Hahnenfußgew. / Buttercup Fam. |  | D | 
|  |  segetalis (3 Taxa + 1 Syn.) |  |  |  |  | 
|  |  segetum (3 Taxa + 2 Syn.) |  |  |  |  | 
|  | seguieri subsp. glaber, Dianthus −−> Dianthus sylvaticus |  | Caryophyllaceae \ Nelkengew. / Campion Fam. |  | D 
I | 
|  | seguieri subsp. sylvaticus, Dianthus −−> Dianthus sylvaticus |  | Caryophyllaceae \ Nelkengew. / Campion Fam. |  | D 
I | 
|  | seguieri, Dianthus \ Seguier-Nelke / Ragged Pink |  | Caryophyllaceae \ Nelkengew. / Campion Fam. |  | F 
I | 
|  | seguieriana subsp. loiseleurii, Euphorbia \ Loiseleurs Wolfsmilch, Kleine Steppen-Wolfsmilch / Loiseleur's Spurge |  | Euphorbiaceae \ Wolfsmilchgew. / Spurge Fam. |  | A | 
|  | seguieriana var. minor, Euphorbia −−> Euphorbia seguieriana subsp. loiseleurii |  | Euphorbiaceae \ Wolfsmilchgew. / Spurge Fam. |  | A | 
|  | seguieriana, Euphorbia \ Steppen-Wolfsmilch / Seguier's Spurge |  | Euphorbiaceae \ Wolfsmilchgew. / Spurge Fam. |  | A 
D 
F 
HR | 
|  | seipkae, Erysimum \ Pyrenäen-Schöterich / Pyrenean Treacle Mustard |  | Brassicaceae \ Kreuzblütler / Crucifers |  | F | 
|  | selaginoides, Selaginella \ Dorniger Moosfarn / Lesser Clubmoss |  | Selaginellaceae \ Moosfarngew. / Lesser Clubmoss Fam.
 |  | A 
D 
E | 
|  | selago, Huperzia \ Tannen-Bärlapp / Fir Clubmoss |  | Lycopodiaceae \ Bärlappgew. / Clubmoss Fam. |  | A 
CH 
D 
F 
I | 
|  | selloana, Cortaderia \ Amerikanisches Pampas-Gras / Pampas Grass |  | Poaceae \ Süßgräser / Grass Fam. |  | D 
F 
Rho | 
|  | semidecandrum, Cerastium \ Sand-Hornkraut / Little Mouse-Ear |  | Caryophyllaceae \ Nelkengew. / Campion Fam. |  | D | 
|  | semidivisa, Alchemilla \ Halbgeteilter Frauenmantel / Half-Divided Lady's Mantle |  | Rosaceae \ Rosengewächse / Rose Fam. |  | S | 
|  | semiglabrum, Helianthemum nummularium subsp. \ Kahles Sonnenröschen / Glabrous Rock-Rose |  | Cistaceae \ Zistrosengew. / Rockrose Fam. |  | F 
I | 
|  | seminigricans, Salix x −−> Salix myrsinifolia x viminalis |  | Salicaceae \ Weidengewächse / Willow Fam. |  | D | 
|  | sempervirens var. horizontalis, Cupressus \ Mittelmeer-Zypresse / Mediterranean Cypress |  | Cupressaceae \ Zypressengew. / Cypresse Fam. |  | Chi 
GR 
Kre 
Rho 
Sam | 
|  | sempervirens var. pyramidalis, Cupressus \ Säulen-Zypresse, Italienische Zypresse / Italian Cypress |  | Cupressaceae \ Zypressengew. / Cypresse Fam. |  | GR 
I | 
|  | sempervirens var. sempervirens, Cupressus −−> Cupressus sempervirens var. horizontalis |  | Cupressaceae \ Zypressengew. / Cypresse Fam. |  | Chi 
GR 
Kre 
Rho 
Sam | 
|  | sempervirens var. stricta, Cupressus −−> Cupressus sempervirens var. pyramidalis |  | Cupressaceae \ Zypressengew. / Cypresse Fam. |  | GR 
I | 
|  |  sempervirens (9 Taxa + 2 Syn.) |  |  |  |  | 
|  | sempervivoides, Prometheum −−> Sedum sempervivum |  | Crassulaceae \ Dickblattgew. / Stonecrop Fam. |  | F | 
|  | sempervivum, Sedum \ Hauswurzähnliche Fetthenne / Red Turkish Stonecrop |  | Crassulaceae \ Dickblattgew. / Stonecrop Fam. |  | F | 
|  |  sendtneri (1 Taxon + 1 Syn.) |  |  |  |  | 
|  | senescens subsp. montanum, Allium \ Berg-Lauch / Mountain Garlic, German Garlic |  | Liliaceae \ Liliengewächse / Lily Fam. |  | A 
D 
E 
F | 
|  | senoneri subsp. icaricum, Erysimum \ Ikaria-Schöterich / Icarian Treacle Mustard |  | Brassicaceae \ Kreuzblütler / Crucifers |  | Les | 
|  | sensibilis, Onoclea \ Perl-Farn / Sensible Fern |  | Pteridopsida \ Echte Farne / True Ferns |  | D | 
|  | senticosus, Rubus \ Dornige Brombeere / Prickly Bramble |  | Rosaceae \ Rosengewächse / Rose Fam. |  | D | 
|  | sepium subsp. roseata, Calystegia \ Ufer-Zaunwinde / Bindweed |  | Convolvulaceae \ Windengew. / Bindweed Fam. |  | IRL | 
|  |  sepium (3 Taxa + 1 Syn.) |  |  |  |  | 
|  | septentrionale x trichomanes subsp. trichomanes, Asplenium −−> Asplenium x alternifolium |  | Pteridopsida \ Echte Farne / True Ferns |  | D | 
|  |  septentrionale (1 Taxon + 1 Syn.) |  |  |  |  | 
|  | septentrionalis, Androsace \ Nordischer Mannsschild / Pygmyflower Rock Jasmine, Northern Androsace |  | Primulaceae \ Primelgewächse / Primrose Fam. |  | D | 
|  | sepulcralis, Salix x −−> Salix alba x babylonica |  | Salicaceae \ Weidengewächse / Willow Fam. |  | D | 
|  |  serbica (2 Taxa) |  |  |  |  | 
|  |  sericea (5 Taxa) |  |  |  |  | 
|  | sericeus, Asteriscus \ Kanarischer Strandstern / Canarian Daisy ? |  | Asteraceae \ Korbblütler / Composite Fam. |  | Ten | 
|  | sericifera, Araujia \ Folterpflanze / Moth Catcher, White Bladderflower |  | Asclepiadaceae \ Schwalbenwurzgew. / Milkweed Fam. |  | E | 
|  | seridis subsp. maritima, Centaurea \ Endivien-Flockenblume / Endive Star Thistle ? |  | Asteraceae \ Korbblütler / Composite Fam. |  | E | 
|  |  serotina (2 Taxa + 2 Syn.) |  |  |  |  | 
|  |  serotinum (2 Taxa + 1 Syn.) |  |  |  |  | 
|  |  serotinus (2 Taxa + 2 Syn.) |  |  |  |  | 
|  | serpens subsp. nemorosus, Ranunculus −−> Ranunculus nemorosus |  | Ranunculaceae \ Hahnenfußgew. / Buttercup Fam. |  | D 
I | 
|  |  serpens (3 Taxa + 1 Syn.) |  |  |  |  | 
|  | serpentina, Plantago maritima subsp. \ Schlangen-Wegerich, Serpentin-Wegerich / Fleshy Plantain |  | Plantaginaceae \ Wegerichgew. / Plantain Fam. |  | F 
I | 
|  |  serpentinicola (1 Taxon + 1 Syn.) |  |  |  |  | 
|  | serpillifolia, Salix \ Quendelblättrige Weide / Thyme-Leaved Willow |  | Salicaceae \ Weidengewächse / Willow Fam. |  | A 
D 
I | 
|  |  serpyllifolia (5 Taxa) |  |  |  |  | 
|  | serpyllum, Thymus \ Sand-Thymian / Breckland Thyme |  | Lamiaceae \ Lippenblütler / Mint Fam. |  | D 
S | 
|  | serrae, Helianthemum origanifolium subsp. \ Dostblättriges Sonnenröschen / Majoram-Leaved Rock-Rose |  | Cistaceae \ Zistrosengew. / Rockrose Fam. |  | Mal | 
|  |  serrata (2 Taxa) |  |  |  |  | 
|  | serratula, Euphorbia −−> Euphorbia stricta |  | Euphorbiaceae \ Wolfsmilchgew. / Spurge Fam. |  | D | 
|  | serratus, Fucus \ Säge-Tang / Serrated Wrack |  | Fucaceae \ Braun-Algen / Seaweeds |  | D 
S | 
|  | serriola, Lactuca \ Kompass-Lattich, Wilder Lattich / Prickly Lettuce |  | Asteraceae \ Korbblütler / Composite Fam. |  | D 
E | 
|  | serrulata, Carex flacca subsp. −−> Carex flacca subsp. erythrostachys |  | Cyperaceae \ Sauergräser / Sedge Fam. |  | Kef 
Rho 
Zyp | 
|  | servaticus, Rubus \ Dickicht-Haselblatt-Brombeere / Thicket Bramble ? |  | Rosaceae \ Rosengewächse / Rose Fam. |  | D | 
|  | sesamoides, Reseda −−> Reseda phyteuma |  | Resedaceae \ Resedagewächse / Mignonette Fam. |  | F 
HR 
I | 
|  |  sessile (1 Taxon + 1 Syn.) |  |  |  |  | 
|  | sessilifolium, Cytisophyllum \ Südlicher Geißklee, Blattstielloser Geißklee / Sessile-Leaved Tick Trefoil |  | Fabaceae \ Schmetterlingsblütler / Legumes |  | F 
I | 
|  | sessilifolius, Cytisus −−> Cytisophyllum sessilifolium |  | Fabaceae \ Schmetterlingsblütler / Legumes |  | F 
I | 
|  | sessilis, Triteleia −−> Tristagma sessile |  | Liliaceae \ Liliengewächse / Lily Fam. |  | D | 
|  |  setacea (3 Taxa) |  |  |  |  | 
|  |  setiferum (2 Taxa) |  |  |  |  | 
|  | setifolius, Lathyrus \ Grasblättrige Platterbse / Brown Vetchling, Narrow-Leaved Red Vetchling |  | Fabaceae \ Schmetterlingsblütler / Legumes |  | Chi 
GR 
I 
Mal | 
|  | setigera, Malva −−> Althaea hirsuta |  | Malvaceae \ Malvengewächse / Mallow Fam. |  | D 
F 
HR 
I | 
|  |  setigerum (1 Taxon + 1 Syn.) |  |  |  |  | 
|  | setosa, Crepis \ Borstiger Pippau / Bristly Hawk's-Beard |  | Asteraceae \ Korbblütler / Composite Fam. |  | D 
HR | 
|  | sexangulare, Sedum \ Milder Mauerpfeffer / Tasteless Stonecrop |  | Crassulaceae \ Dickblattgew. / Stonecrop Fam. |  | D 
HR 
I | 
|  |  seyboldiana (1 Taxon + 1 Syn.) |  |  |  |  | 
|  | sherardii, Rosa \ Samt-Rose / Sherard's Downy Rose ? |  | Rosaceae \ Rosengewächse / Rose Fam. |  | HR | 
|  | shuttleworthii, Typha \ Shuttleworths Rohrkolben, Silber-Rohrkolben / Shuttleworth's Bulrush |  | Typhaceae \ Rohrkolbengew. / Bulrush Fam. |  | F 
S | 
|  |  siberica agg. (1 Taxon + 1 Syn.) |  |  |  |  | 
|  |  sibirica (3 Taxa) |  |  |  |  | 
|  | sibiricum, Geranium \ Sibirischer Storchschnabel / Siberian Crane's-Bill, Siberian Geranium |  | Geraniaceae \ Storchschnabelgew. / Crane's-Bill Fam. |  | A | 
|  |  sibthorpii (3 Taxa) |  |  |  |  | 
|  | sibthorpioides, Hydrocotyle \ Kleinblättriger Wassernabel / Dwarf Pennywort, Lawn Marsh Pennywort |  | Apiaceae \ Doldenblütler / Umbellifers |  | D | 
|  |  sicula (3 Taxa + 1 Syn.) |  |  |  |  | 
|  |  siculum (4 Taxa + 1 Syn.) |  |  |  |  | 
|  |  siculus (1 Taxon + 1 Syn.) |  |  |  |  | 
|  | sieberi subsp. atticus, Crocus \ Attischer Zwerg-Krokus / Attic Snow Crocus |  | Iridaceae \ Irisgewächse / Iris Fam. |  | GR | 
|  | sieberi subsp. sublimis, Crocus \ Griechischer Zwerg-Krokus / Snow Crocus |  | Iridaceae \ Irisgewächse / Iris Fam. |  | GR 
Kef | 
|  |  sieberi (3 Taxa + 1 Syn.) |  |  |  |  | 
|  | sieheana, Viola \ Siehes Veilchen / Siehe's Violet |  | Violaceae \ Veilchengewächse / Violet Fam. |  | Zyp | 
|  | siehei x Scilla bifolia, Chionodoxa luciliae x −−> Scilla bifolia x luciliae x siehei |  | Liliaceae \ Liliengewächse / Lily Fam. |  | D | 
|  |  siehei (2 Taxa + 1 Syn.) |  |  |  |  | 
|  | siifolium, Heracleum austriacum subsp. \ Merk-Bärenklau, Roter Österreich-Bärenklau / Red Austrian Hogweed |  | Apiaceae \ Doldenblütler / Umbellifers |  | A 
SLO | 
|  | silaifolia, Oenanthe \ Wiesensilgen-Wasserfenchel / Narrow-Leaved Water Dropwort |  | Apiaceae \ Doldenblütler / Umbellifers |  | Kre | 
|  | silaus, Silaum \ Wiesen-Silge / Pepper Saxifrage |  | Apiaceae \ Doldenblütler / Umbellifers |  | D | 
|  | silenifolia, Scabiosa \ Südalpen-Skabiose / Catchfly-Leaved Scabious |  | Dipsacaceae \ Kardengewächse / Teasel Fam. |  | HR | 
|  | siler, Laserpitium \ Berg-Laserkraut, Echter Bergkümmel / Narrow-Leaved Sermountain |  | Apiaceae \ Doldenblütler / Umbellifers |  | A 
F 
HR 
I 
SLO | 
|  | silesiacum, Taraxacum −−> Taraxacum parnassicum |  | Asteraceae \ Korbblütler / Composite Fam. |  | Cor 
D | 
|  | siliqua, Ceratonia \ Johannisbrot-Baum, Karube / Carob |  | Fabaceae \ Schmetterlingsblütler / Legumes |  | GR 
HR 
Kre 
Mal 
Rho 
Zyp | 
|  | siliquastrum, Cercis \ Judasbaum / Judas Tree |  | Fabaceae \ Schmetterlingsblütler / Legumes |  | D 
F 
GR 
I 
Kre 
Les 
Mal 
Rho 
Sam | 
|  | siliquosa, Draba \ Kärntner Felsenblümchen / Carinthian Whitlowgrass |  | Brassicaceae \ Kreuzblütler / Crucifers |  | A 
D | 
|  | siliquosus, Lotus −−> Lotus maritimus |  | Fabaceae \ Schmetterlingsblütler / Legumes |  | A 
Cor 
D 
F 
Lie | 
|  | silvatica, Calystegia \ Wald-Zaunwinde / Large Bindweed, Giant Bindweed |  | Convolvulaceae \ Windengew. / Bindweed Fam. |  | I | 
|  |  simplex (3 Taxa) |  |  |  |  | 
|  |  sinensis (2 Taxa + 1 Syn.) |  |  |  |  | 
|  |  sintenisii (2 Taxa) |  |  |  |  | 
|  |  sinuata (2 Taxa) |  |  |  |  | 
|  |  sinuatum (2 Taxa) |  |  |  |  | 
|  | sinuatus, Tragopogon −−> Tragopogon porrifolius subsp. eriospermus |  | Asteraceae \ Korbblütler / Composite Fam. |  | GR 
Kre 
Les 
Rho | 
|  | sisymbrifolium, Solanum −−> Solanum sisymbriifolium |  | Solanaceae \ Nachtschattengew. / Nightshade Fam. |  | D | 
|  | sisymbriifolium, Solanum \ Raukenblättriger Nachtschatten, Litschi-Tomate / Sticky Nightshade, Lychee Tomato |  | Solanaceae \ Nachtschattengew. / Nightshade Fam. |  | D | 
|  |  sisyrinchium (1 Taxon + 1 Syn.) |  |  |  |  | 
|  |  sitchensis (2 Taxa) |  |  |  |  | 
|  |  slovenica (1 Taxon + 1 Syn.) |  |  |  |  | 
|  |  smithiana (1 Taxon + 1 Syn.) |  |  |  |  | 
|  | smithii, Polycarpaea \ Smiths Vielfrucht / Smith's Polycarpaea |  | Caryophyllaceae \ Nelkengew. / Campion Fam. |  | Pal | 
|  | smolikanum, Cerastium \ Smolikas-Hornkraut / Smolikas Mouse-Ear |  | Caryophyllaceae \ Nelkengew. / Campion Fam. |  | GR | 
|  | smyrnacea, Rostraria \ Smyrna-Büschelgras / Smyrna Hair Grass |  | Poaceae \ Süßgräser / Grass Fam. |  | Zyp | 
|  | smyrnensis, Tamarix \ Smyrna-Tamariske / Smyrna Tamarisk |  | Tamaricaceae \ Tamariskengew. / Tamarisk Fam. |  | GR | 
|  | soda, Salsola \ Soda-Salzkraut, Mönchsbart / Oppositeleaf Glasswort, Barilla |  | Chenopodiaceae \ Gänsefußgew. / Goosefoot Fam.
 |  | GR | 
|  | sodomaeum, Solanum \ Sodomsapfel / Apple of Sodom |  | Solanaceae \ Nachtschattengew. / Nightshade Fam. |  | Mal 
Tun | 
|  | sodomeum, Solanum −−> Solanum sodomaeum |  | Solanaceae \ Nachtschattengew. / Nightshade Fam. |  | Mal 
Tun | 
|  | soldanella, Calystegia \ Strand-Winde / Sea Bindweed |  | Convolvulaceae \ Windengew. / Bindweed Fam. |  | F 
GR 
IRL | 
|  |  soleirolii (3 Taxa) |  |  |  |  | 
|  | solida subsp. densiflora, Corydalis −−> Corydalis densiflora |  | Fumariaceae \ Erdrauchgew. / Fumitory Fam. |  | GR | 
|  |  solida (2 Taxa) |  |  |  |  | 
|  | solstitialis subsp. schouwii, Centaurea −−> Centaurea sicula |  | Asteraceae \ Korbblütler / Composite Fam. |  | Siz | 
|  | solstitialis, Centaurea \ Sonnwend-Flockenblume / Yellow Star Thistle |  | Asteraceae \ Korbblütler / Composite Fam. |  | F 
GR 
HR | 
|  | somniferum subsp. setigerum, Papaver −−> Papaver setigerum |  | Papaveraceae \ Mohngewächse / Poppy Fam. |  | Cor 
D 
Zyp | 
|  | somniferum, Papaver \ Schlaf-Mohn / Opium Poppy |  | Papaveraceae \ Mohngewächse / Poppy Fam. |  | D 
F 
Mal | 
|  | sonchifolia, Centaurea \ Endivien-Flockenblume / Endive Star Thistle |  | Asteraceae \ Korbblütler / Composite Fam. |  | GR | 
|  | sophia, Descurainia \ Besen-Rauke / Flixweed, Tansy Mustard |  | Brassicaceae \ Kreuzblütler / Crucifers |  | D | 
|  | sorbifolia, Sorbaria \ Sibirische Fiederspeere / Ural False Spiraea |  | Rosaceae \ Rosengewächse / Rose Fam. |  | D | 
|  | sordidum, Phagnalon \ Mehrköpfige Steinimmortelle / Many-Headed Phagnalon |  | Asteraceae \ Korbblütler / Composite Fam. |  | F 
Mal | 
|  |  soredians (1 Taxon + 1 Syn.) |  |  |  |  | 
|  | sororia, Viola \ Pfingst-Veilchen / Common Blue Violet |  | Violaceae \ Veilchengewächse / Violet Fam. |  | D | 
|  | sorviodurus, Ranunculus \ Straubinger Gold-Hahnenfuß / Straubing Goldilocks |  | Ranunculaceae \ Hahnenfußgew. / Buttercup Fam. |  | D | 
|  | sosnowskyi, Heracleum \ Sosnowskys Bärenklau / Sosnowsky'sHogweed ? |  | Apiaceae \ Doldenblütler / Umbellifers |  | NL | 
|  | soyeri subsp. subcoriacea, Arabis −−> Arabis subcoriacea |  | Brassicaceae \ Kreuzblütler / Crucifers |  | A 
F | 
|  | soyeri, Arabis \ Soyers Gänsekresse, Glänzende Gänsekresse / Soyer's Rock-Cress |  | Brassicaceae \ Kreuzblütler / Crucifers |  | D | 
|  | spachii, Fumana −−> Fumana ericifolia |  | Cistaceae \ Zistrosengew. / Rockrose Fam. |  | I | 
|  | spadicea, Chrysaspis −−> Trifolium spadiceum |  | Fabaceae \ Schmetterlingsblütler / Legumes |  | D | 
|  | spadiceum, Trifolium \ Brauner Moor-Klee / Large Brown Clover |  | Fabaceae \ Schmetterlingsblütler / Legumes |  | D | 
|  | spathacea, Gagea \ Scheiden-Gelbstern / Belgian Star of Bethlehem |  | Liliaceae \ Liliengewächse / Lily Fam. |  | D | 
|  | spathularis, Saxifraga \ Spateliger Steinbrech / St Patrick's Cabbage |  | Saxifragaceae \ Steinbrechgew. / Saxifrage Fam. |  | IRL | 
|  |  spathulata (2 Taxa + 2 Syn.) |  |  |  |  | 
|  | spathulifolius subsp. pyrenaicus, Senecio −−> Tephroseris helenitis var. discoidea |  | Asteraceae \ Korbblütler / Composite Fam. |  | F | 
|  | spathulifolius, Senecio −−> Tephroseris helenitis subsp. helenitis |  | Asteraceae \ Korbblütler / Composite Fam. |  | A | 
|  | spatulata subsp. filicaulis, Campanula \ Fadenstängelige Glockenblume / Thinstem Bellflower |  | Campanulaceae \ Glockenblumengew. / Bellflower Fam. |  | Kre | 
|  | spatulata subsp. spatulata, Campanula \ Löffelförmige Glockenblume / Spoon-Shaped Bellflower |  | Campanulaceae \ Glockenblumengew. / Bellflower Fam. |  | GR | 
|  | spatulata subsp. spruneriana, Campanula \ Spruners Glockenblume / Spruner's Bellflower |  | Campanulaceae \ Glockenblumengew. / Bellflower Fam. |  | GR 
Kef | 
|  | spatulata, Campanula spatulata subsp. \ Löffelförmige Glockenblume / Spoon-Shaped Bellflower |  | Campanulaceae \ Glockenblumengew. / Bellflower Fam. |  | GR | 
|  |  speciosa (4 Taxa + 1 Syn.) |  |  |  |  | 
|  |  speciosissima (1 Taxon + 1 Syn.) |  |  |  |  | 
|  | speciosissimum, Thalictrum \ Blaugrüne Wiesenraute, Graublättrige Wiesenraute / Glaucous-Leaved Meadow-Rue, Dusty Meadow-Rue |  | Ranunculaceae \ Hahnenfußgew. / Buttercup Fam. |  | D | 
|  | speciosum subsp. megaphlomos, Verbascum \ Riesen-Königskerze / Giant Mullein |  | Scrophulariaceae \ Braunwurzgew. / Figwort Fam. |  | GR | 
|  |  speciosum (2 Taxa + 1 Syn.) |  |  |  |  | 
|  | speciosus, Rubus −−> Rubus bifrons |  | Rosaceae \ Rosengewächse / Rose Fam. |  | D | 
|  | spectabile x telephium, Hylotelephium \ Hohe Waldfetthenne / Autumn-Joy Stonecrop |  | Crassulaceae \ Dickblattgew. / Stonecrop Fam. |  | D | 
|  |  spectabile (1 Taxon + 1 Syn.) |  |  |  |  | 
|  | spectabilis, Bougainvillea \ Bougainvillea / Bougainvillea |  | Nyctaginaceae \ Wunderblumengew. / Marvel-of-Peru Fam.
 |  | I 
Rho | 
|  | speculum-veneris, Legousia \ Gewöhnlicher Frauenspiegel, Venusspiegel / Large Venus' Looking-Glass |  | Campanulaceae \ Glockenblumengew. / Bellflower Fam. |  | A 
D 
F 
HR | 
|  | spelta, Triticum \ Dinkel, Spelz / Spelt, Swabian Grain |  | Poaceae \ Süßgräser / Grass Fam. |  | D 
S | 
|  |  spetana (1 Taxon + 1 Syn.) |  |  |  |  | 
|  | sphaciotica, Fritillaria messanensis subsp. \ Sfakia-Schachblume / Sfakia Fritillary |  | Liliaceae \ Liliengewächse / Lily Fam. |  | Kre | 
|  | sphaerocarpum, Ornithogalum \ Weißer Pyrenäen-Milchstern / White Pyrenees Star of Bethlehem |  | Liliaceae \ Liliengewächse / Lily Fam. |  | HR 
Les | 
|  |  sphaerocephala (2 Taxa + 1 Syn.) |  |  |  |  | 
|  | sphaerocephalon, Allium \ Kugel-Lauch / Round-Headed Leek |  | Liliaceae \ Liliengewächse / Lily Fam. |  | A 
D 
F 
HR 
I | 
|  | sphaerocephalum, Hieracium \ Kugelköpfiges Habichtskraut / Globe-Headed Hawkweed |  | Asteraceae \ Korbblütler / Composite Fam. |  | A | 
|  | sphaerocephalus, Echinops \ Drüsenblättrige Kugeldistel, Rundköpfige Kugeldistel / Glandular Globe Thistle |  | Asteraceae \ Korbblütler / Composite Fam. |  | A 
D 
E 
GR | 
|  | sphinx, Ranunculus \ Rätselhafter Gold-Hahnenfuß / Mysterious Goldilocks |  | Ranunculaceae \ Hahnenfußgew. / Buttercup Fam. |  | F | 
|  | sphondylium subsp. elegans, Heracleum \ Berg-Bärenklau / Mountain Hogweed |  | Apiaceae \ Doldenblütler / Umbellifers |  | A 
D 
HR 
I | 
|  | sphondylium subsp. pyrenaicum, Heracleum −−> Heracleum pyrenaicum |  | Apiaceae \ Doldenblütler / Umbellifers |  | E 
F | 
|  | sphondylium, Heracleum \ Wiesen-Bärenklau / Hogweed |  | Apiaceae \ Doldenblütler / Umbellifers |  | D 
F 
HR | 
|  | spica-venti, Apera \ Acker-Windhalm / Loose Silky-Bent |  | Poaceae \ Süßgräser / Grass Fam. |  | D | 
|  | spicant, Blechnum \ Gewöhnlicher Rippenfarn / Hard Fern |  | Pteridopsida \ Echte Farne / True Ferns |  | A 
D 
IRL | 
|  | spicata subsp. barrelieri, Veronica −−> Veronica barrelieri |  | Scrophulariaceae \ Braunwurzgew. / Figwort Fam. |  | HR 
SLO | 
|  | spicata x suaveolens, Mentha −−> Mentha x villosa |  | Lamiaceae \ Lippenblütler / Mint Fam. |  | D | 
|  |  spicata (6 Taxa + 6 Syn.) |  |  |  |  | 
|  | spicatum subsp. caeruleum, Phyteuma −−> Phyteuma spicatum subsp. coeruleum |  | Campanulaceae \ Glockenblumengew. / Bellflower Fam. |  | F | 
|  | spicatum subsp. coeruleum, Phyteuma \ Bläuliche Ähren-Rapunzel / Blue Spiked Rampion |  | Campanulaceae \ Glockenblumengew. / Bellflower Fam. |  | F | 
|  | spicatum subsp. occidentale, Phyteuma −−> Phyteuma spicatum subsp. coeruleum |  | Campanulaceae \ Glockenblumengew. / Bellflower Fam. |  | F | 
|  |  spicatum (6 Taxa + 2 Syn.) |  |  |  |  | 
|  |  spicatus (2 Taxa) |  |  |  |  | 
|  |  spiculifolia (1 Taxon + 1 Syn.) |  |  |  |  | 
|  | spiculifolius, Dianthus \ Stängellose Nelke, Fransen-Nelke / Red Eye Pink |  | Caryophyllaceae \ Nelkengew. / Campion Fam. |  | F | 
|  | spina-christi, Paliurus \ Christusdorn / Christ's Thorn |  | Rhamnaceae \ Kreuzdorngew. / Buckthorn Fam. |  | GR 
HR 
I | 
|  | spina-curva, Rubus \ Kreidige Brombeere / Chalky Bramble ? |  | Rosaceae \ Rosengewächse / Rose Fam. |  | D | 
|  | spinacurva, Rubus −−> Rubus spina-curva
 ? |  | Rosaceae \ Rosengewächse / Rose Fam. |  | D | 
|  | spinosa subsp. antiquorum, Ononis \ Vieldornige Hauhechel / Thorny Restharrow, Prickly Restharrow |  | Fabaceae \ Schmetterlingsblütler / Legumes |  | F 
GR 
I | 
|  | spinosa subsp. rupestris, Capparis \ Östlicher Kapernstrauch / Spineless Caper ? |  | Capparaceae \ Kaperngewächse / Caper Fam. |  | GR 
I 
Kef | 
|  | spinosa var. aegyptia, Capparis \ Ägyptischer Kapernstrauch / Egyptian Caper |  | Capparaceae \ Kaperngewächse / Caper Fam. |  | Rho 
Sam | 
|  | spinosa var. canescens, Capparis \ Sizilianischer Kapernstrauch / Sicilian Caper |  | Capparaceae \ Kaperngewächse / Caper Fam. |  | GR | 
|  |  spinosa (10 Taxa + 1 Syn.) |  |  |  |  | 
|  |  spinosissima (1 Taxon + 1 Syn.) |  |  |  |  | 
|  |  spinosissimum (2 Taxa) |  |  |  |  | 
|  | spinosissimus, Echinops \ Drüsenhaarige Kugeldistel / Spiny Globe Thistle |  | Asteraceae \ Korbblütler / Composite Fam. |  | GR | 
|  |  spinosum (3 Taxa + 3 Syn.) |  |  |  |  | 
|  |  spinosus (2 Taxa) |  |  |  |  | 
|  |  spinulosa (2 Taxa + 1 Syn.) |  |  |  |  | 
|  | spiraeifolia, Inula −−> Pentanema spiraeifolium |  | Asteraceae \ Korbblütler / Composite Fam. |  | HR | 
|  | spiraeifolium, Pentanema \ Spierstaudenblättriger Alant / Inula |  | Asteraceae \ Korbblütler / Composite Fam. |  | HR | 
|  | spiralis, Vallisneria \ Wasserschraube / Tape Grass |  | Hydrocharitaceae \ Froschbissgew. / Frogbit Fam. |  | D | 
|  |  splendens (2 Taxa + 2 Syn.) |  |  |  |  | 
|  | splendidum, Verbascum \ Prächtige Königskerze / Splendid Mullein |  | Scrophulariaceae \ Braunwurzgew. / Figwort Fam. |  | Sam | 
|  | splitgerberi, Buglossoides incrassata subsp. \ Splitgerbers Acker-Steinsame / Splitgerber's Field Gromwell |  | Boraginaceae \ Borretschgew. / Borrage Fam. |  | A 
F | 
|  | sponhemica, Saxifraga rosacea subsp. \ Rheinischer Rasen-Steinbrech / Irish Saxifrage |  | Saxifragaceae \ Steinbrechgew. / Saxifrage Fam. |  | D | 
|  | spontanea, Cannabis sativa var. \ Wilder Hanf / Wild Hemp |  | Cannabaceae \ Hanfgewächse / Hop Fam. |  | A | 
|  |  spontaneum (1 Taxon + 1 Syn.) |  |  |  |  | 
|  | sporadium, Microthlaspi natolicum subsp. −−> Microthlaspi natolicum subsp. gaillardotii |  | Brassicaceae \ Kreuzblütler / Crucifers |  | Rho 
Zyp | 
|  |  spreitzenhoferi (1 Taxon + 1 Syn.) |  |  |  |  | 
|  | sprengelii, Rubus \ Sprengels Brombeere / Sprengel's Bramble |  | Rosaceae \ Rosengewächse / Rose Fam. |  | D | 
|  |  spruneri (5 Taxa + 2 Syn.) |  |  |  |  | 
|  | spruneriana, Campanula spatulata subsp. \ Spruners Glockenblume / Spruner's Bellflower |  | Campanulaceae \ Glockenblumengew. / Bellflower Fam. |  | GR 
Kef | 
|  | sprunerianus, Ranunculus \ Spruners Hahnenfuß / Spruner's Buttercup |  | Ranunculaceae \ Hahnenfußgew. / Buttercup Fam. |  | Chi 
GR 
Kef | 
|  | spumosum, Trifolium \ Schaum-Klee / Bladder Clover |  | Fabaceae \ Schmetterlingsblütler / Legumes |  | Les 
Rho | 
|  |  spuria (2 Taxa) |  |  |  |  | 
|  |  spurium (3 Taxa) |  |  |  |  | 
|  | spurius, Phedimus −−> Sedum spurium |  | Crassulaceae \ Dickblattgew. / Stonecrop Fam. |  | D 
S | 
|  | squalens, Iris \ Schmutziggelbe Schwertlilie / Brown-flowered Iris |  | Iridaceae \ Irisgewächse / Iris Fam. |  | D 
HR | 
|  |  squalida (1 Taxon + 1 Syn.) |  |  |  |  | 
|  | squamaria, Lathraea \ Gewöhnliche Schuppenwurz / Toothwort |  | Scrophulariaceae \ Braunwurzgew. / Figwort Fam. |  | A 
D | 
|  |  squamatum (2 Syn.) |  |  |  |  | 
|  |  squamatus (2 Syn.) |  |  |  |  | 
|  | squamosa, Cladonia \ Schuppen-Becherflechte / Lichen ? |  | Lecanorales \ Flechten / Lichens |  | S | 
|  | squamosum, Trifolium \ Schuppen-Klee / Sea Clover ? |  | Fabaceae \ Schmetterlingsblütler / Legumes |  | F 
HR | 
|  |  squarrosa (4 Taxa) |  |  |  |  | 
|  |  squarrosum (3 Taxa + 1 Syn.) |  |  |  |  | 
|  |  squarrosus (2 Taxa) |  |  |  |  | 
|  | stagnalis, Callitriche \ Teich-Wasserstern / Pond Water Starwort |  | Callitrichaceae \ Wassersterngew. / Water Starwort Fam.
 |  | D | 
|  | stagnina, Viola \ Pfirsichblättriges Moor-Veilchen / Fen Violet |  | Violaceae \ Veilchengewächse / Violet Fam. |  | D | 
|  | staliana, Asperula \ Stalios Meier / Stalio's Woodruff |  | Rubiaceae \ Rötegewächse / Bedstraw Fam. |  | HR | 
|  | staphisagria, Delphinium −−> Staphisagria macrosperma |  | Ranunculaceae \ Hahnenfußgew. / Buttercup Fam. |  | Chi 
GR 
Kef 
Kre | 
|  | starkeana, Salix \ Bleiche Weide / Stark's Willow |  | Salicaceae \ Weidengewächse / Willow Fam. |  | D | 
|  |  staticifolia (1 Taxon + 1 Syn.) |  |  |  |  | 
|  | staticifolium, Hieracium −−> Tolpis staticifolia |  | Asteraceae \ Korbblütler / Composite Fam. |  | D 
F | 
|  |  stellaris (2 Taxa) |  |  |  |  | 
|  | stellata, Scandix \ Stern-Venuskamm / Stellate Shepherd's Needle |  | Apiaceae \ Doldenblütler / Umbellifers |  | D | 
|  | stellatum subsp. xanthinum, Trifolium \ Goldgelber Stern-Klee / Golden Starry Clover |  | Fabaceae \ Schmetterlingsblütler / Legumes |  | GR | 
|  |  stellatum (3 Taxa) |  |  |  |  | 
|  | stellatus subsp. edulis, Rhagadiolus −−> Rhagadiolus edulis |  | Asteraceae \ Korbblütler / Composite Fam. |  | Kef 
Les 
Mal | 
|  |  stellatus (2 Taxa + 1 Syn.) |  |  |  |  | 
|  |  stellulata (2 Taxa + 2 Syn.) |  |  |  |  | 
|  | stenocodon, Campanula \ Schmalblütige Glockenblume / Cottian Bellflower |  | Campanulaceae \ Glockenblumengew. / Bellflower Fam. |  | F | 
|  |  stenophyllus (2 Taxa) |  |  |  |  | 
|  |  stenosiphon (1 Taxon + 1 Syn.) |  |  |  |  | 
|  |  sterilis (3 Taxa + 1 Syn.) |  |  |  |  | 
|  | sternbergii, Dianthus \ Dolomiten-Nelke, Sternbergs Nelke / Sternberg's Pink |  | Caryophyllaceae \ Nelkengew. / Campion Fam. |  | A 
SLO | 
|  | sterneri, Galium \ Sterners Labkraut / Limestone Bedstraw |  | Rubiaceae \ Rötegewächse / Bedstraw Fam. |  | IRL | 
|  | stipitata, Willemetia \ Gestielter Kronen-Lattich / Willemetia |  | Asteraceae \ Korbblütler / Composite Fam. |  | A | 
|  | stipitatum, Papaver −−> Papaver guerlekense |  | Papaveraceae \ Mohngewächse / Poppy Fam. |  | Rho | 
|  | stipitatus, Calycocorsus −−> Willemetia stipitata |  | Asteraceae \ Korbblütler / Composite Fam. |  | A | 
|  | stipularis, Asparagus −−> Asparagus horridus |  | Liliaceae \ Liliengewächse / Lily Fam. |  | Mal 
Zyp | 
|  | stiriaca, Pulmonaria \ Steirisches Lungenkraut / Styrian Lungwort |  | Boraginaceae \ Borretschgew. / Borrage Fam. |  | A | 
|  | stiriacum, Sempervivum montanum subsp. \ Steirische Berg-Hauswurz / Styrian Mountain House-Leek |  | Crassulaceae \ Dickblattgew. / Stonecrop Fam. |  | A | 
|  | stoebe subsp. australis, Centaurea −−> Centaurea australis |  | Asteraceae \ Korbblütler / Composite Fam. |  | A 
D | 
|  | stoebe subsp. micranthos, Centaurea −−> Centaurea australis |  | Asteraceae \ Korbblütler / Composite Fam. |  | A 
D | 
|  | stoebe, Centaurea \ Rispen-Flockenblume / Panicled Knapweed |  | Asteraceae \ Korbblütler / Composite Fam. |  | A 
D 
I | 
|  | stoechas subsp. barrelieri, Helichrysum −−> Helichrysum stoechas |  | Asteraceae \ Korbblütler / Composite Fam. |  | E 
F 
GR 
HR 
Les 
Mal 
Rho 
Sam | 
|  |  stoechas (2 Taxa) |  |  |  |  | 
|  |  stolonifera (1 Taxon + 3 Syn.) |  |  |  |  | 
|  | stoloniflora, Pilosella x −−> Hieracium x stoloniflorum |  | Asteraceae \ Korbblütler / Composite Fam. |  | D | 
|  | stoloniflorum, Hieracium x \ Läuferblütiges Habichtskraut / Hybrid Hawkweed |  | Asteraceae \ Korbblütler / Composite Fam. |  | D | 
|  | stramonium var. tatula, Datura \ Blauer Stechapfel / Purple Thorn Apple |  | Solanaceae \ Nachtschattengew. / Nightshade Fam. |  | D 
E | 
|  | stramonium, Datura \ Gewöhnlicher Stechapfel / Thorn Apple |  | Solanaceae \ Nachtschattengew. / Nightshade Fam. |  | D 
F 
GR | 
|  | stratiotes, Pistia \ Wassersalat, Muschelblume / Water Cabbage |  | Araceae \ Aronstabgewächse / Arum Fam. |  | D | 
|  |  striata (4 Taxa) |  |  |  |  | 
|  |  striatiforme (1 Taxon + 1 Syn.) |  |  |  |  | 
|  |  striatum (2 Taxa + 1 Syn.) |  |  |  |  | 
|  | striatus, Cytisus \ Gesteifter Besen-Ginster / Hairy-Fruited Broom, Portuguese Broom |  | Fabaceae \ Schmetterlingsblütler / Legumes |  | D | 
|  |  stricta (7 Taxa + 2 Syn.) |  |  |  |  | 
|  | stricticaulis s.l., Ranunculus \ Aufrechter Gold-Hahnenfuß / Upright Goldilocks |  | Ranunculaceae \ Hahnenfußgew. / Buttercup Fam. |  | D | 
|  | stricticaulis, Ranunculus \ Aufrechter Gold-Hahnenfuß / Upright Goldilocks |  | Ranunculaceae \ Hahnenfußgew. / Buttercup Fam. |  | D | 
|  | strictissimum, Sisymbrium \ Steife Rauke / Perennial Rocket |  | Brassicaceae \ Kreuzblütler / Crucifers |  | D | 
|  | strictum subsp. spicatum, Linum \ Ähriger Lein / Spiked Upright Flax |  | Linaceae \ Leingewächse / Linseed Fam. |  | GR 
Rho 
Sam 
Zyp | 
|  | strictum subsp. striatiforme, Chenopodium −−> Chenopodium striatiforme |  | Chenopodiaceae \ Gänsefußgew. / Goosefoot Fam.
 |  | D | 
|  | strictum subsp. strictum, Linum \ Steifer Lein / Upright Flax |  | Linaceae \ Leingewächse / Linseed Fam. |  | F 
HR | 
|  |  strictum (4 Taxa + 1 Syn.) |  |  |  |  | 
|  | strigosa, Carex \ Dünnährige Segge / Thin-Spiked Wood Sedge |  | Cyperaceae \ Sauergräser / Sedge Fam. |  | D 
F | 
|  | strigosula, Draba \ Feingestreiftes Hungerblümchen / Fine-Striated Whitlowgrass |  | Brassicaceae \ Kreuzblütler / Crucifers |  | D | 
|  | strigosum, Alyssum \ Schlankes Steinkraut / Slender Alison |  | Brassicaceae \ Kreuzblütler / Crucifers |  | GR 
Rho 
Zyp | 
|  |  strigosus (2 Taxa + 1 Syn.) |  |  |  |  | 
|  | strobus, Pinus \ Weymouths-Kiefer, Weiß-Kiefer / Eastern White Pine |  | Pinaceae \ Kieferngewächse / Pine Fam. |  | D | 
|  | strumarium, Xanthium \ Gewöhnliche Spitzklette / Rough Cocklebur, Common Cocklebur |  | Asteraceae \ Korbblütler / Composite Fam. |  | A 
D 
Zyp | 
|  | struthiopteris, Matteuccia \ Strauß-Farn / Ostrich Fern |  | Pteridopsida \ Echte Farne / True Ferns |  | A 
D | 
|  | stucchii, Oenothera \ Stucchi-Nachtkerze / Stucchi's Evening Primrose ? |  | Onagraceae \ Nachtkerzengew. / Willowherb Fam. |  | I | 
|  |  stygia (1 Taxon + 1 Syn.) |  |  |  |  | 
|  |  stylosa (1 Taxon + 2 Syn.) |  |  |  |  | 
|  | styraciflua, Liquidambar \ Amber-Baum / Sweet Gum Tree |  | Hamamelidaceae \ Zaubernußgewächse / Witch Hazle Fam.
 |  | D 
F | 
|  |  styriaca (1 Taxon + 1 Syn.) |  |  |  |  | 
|  |  suaveolens (6 Taxa + 5 Syn.) |  |  |  |  | 
|  |  suavis (1 Taxon + 1 Syn.) |  |  |  |  | 
|  | subacaulis, Berardia −−> Berardia lanuginosa |  | Asteraceae \ Korbblütler / Composite Fam. |  | F | 
|  | subalpina, Viola tricolor subsp. −−> Viola saxatilis |  | Violaceae \ Veilchengewächse / Violet Fam. |  | A 
CH 
E 
F 
HR 
I | 
|  | subalpinum, Melampyrum \ Schmalblatt-Wachtelweizen / Narrow-Leaved Cow-Wheat |  | Scrophulariaceae \ Braunwurzgew. / Figwort Fam. |  | A | 
|  | subalpinus, Senecio \ Berg-Greiskraut / Mountain Ragwort |  | Asteraceae \ Korbblütler / Composite Fam. |  | A 
D | 
|  | subalternans, Bidens \ Rio-Grande-Zweizahn / Greater Beggartick |  | Asteraceae \ Korbblütler / Composite Fam. |  | HR 
I | 
|  | subarenaria, Potentilla \ Falsches Sand-Fingerkraut / Spring Cinquefoil |  | Rosaceae \ Rosengewächse / Rose Fam. |  | D | 
|  | subcanina, Rosa \ Falsche Hunds-Rose / False Dog Rose |  | Rosaceae \ Rosengewächse / Rose Fam. |  | D | 
|  |  subcaulescens (1 Taxon + 1 Syn.) |  |  |  |  | 
|  |  subcollina (1 Taxon + 2 Syn.) |  |  |  |  | 
|  | subcordata, Sorbus \ Arnstädter Mehlbeere / Arnstadt Whitebeam |  | Rosaceae \ Rosengewächse / Rose Fam. |  | D | 
|  | subcordatus, Rubus \ Herzähnliche Brombeere / Heart-Leaved Bramble |  | Rosaceae \ Rosengewächse / Rose Fam. |  | D | 
|  |  subcoriacea (1 Taxon + 1 Syn.) |  |  |  |  | 
|  |  subcrenata (2 Taxa) |  |  |  |  | 
|  | subdanubialis, Sorbus \ Donau-Mehlbeere / Danube Whitebeam |  | Rosaceae \ Rosengewächse / Rose Fam. |  | D | 
|  | suber, Quercus \ Kork-Eiche / Cork Oak |  | Fagaceae \ Buchengew. / Beech Fam. |  | Cor 
D 
F | 
|  | suberosa, Ulmus −−> Ulmus minor |  | Ulmaceae \ Ulmengewächse / Elm Fam. |  | A 
D 
F 
Les | 
|  | subglechomoides, Ranunculus \ Gundermannblättriger Gold-Hahnenfuß / Ground-Ivy-Leaved Goldilocks |  | Ranunculaceae \ Hahnenfußgew. / Buttercup Fam. |  | F | 
|  | subhirsutum var. barcense, Allium −−> Allium longanum |  | Liliaceae \ Liliengewächse / Lily Fam. |  | Kre | 
|  | subhirsutum, Allium \ Wimperblättriger Lauch / Hairy Garlic |  | Liliaceae \ Liliengewächse / Lily Fam. |  | GR 
Kef 
Mal 
Rho 
Sam | 
|  | subhomophyllus, Ranunculus \ Gleichblättriger Hahnenfuß / Equal-Leaved Buttercup |  | Ranunculaceae \ Hahnenfußgew. / Buttercup Fam. |  | Sam | 
|  | subinermis, Urtica −−> Urtica dioica subsp. galeopsifolia |  | Urticaceae \ Brennnesselgew. / Nettle Fam. |  | D | 
|  | sublanata, Scorzonera \ Schwach-Wollige Schwarzwurzel / Wooly Viper's Grass |  | Asteraceae \ Korbblütler / Composite Fam. |  | GR 
Sam | 
|  | sublimis, Crocus sieberi subsp. \ Griechischer Zwerg-Krokus / Snow Crocus |  | Iridaceae \ Irisgewächse / Iris Fam. |  | GR 
Kef | 
|  | sublobata, Veronica −−> Veronica hederifolia subsp. lucorum |  | Scrophulariaceae \ Braunwurzgew. / Figwort Fam. |  | D | 
|  | sublongisquamum, Taraxacum \ Länglichschuppiger Löwenzahn / Longish-Flaky Dandelion ? |  | Asteraceae \ Korbblütler / Composite Fam. |  | D | 
|  | submersum, Ceratophyllum \ Zartes Hornblatt / Soft Hornwort |  | Ceratophyllaceae \ Hornblattgew. / Hornwort Fam. |  | D | 
|  |  subnivalis (3 Taxa) |  |  |  |  | 
|  | subnodulosus, Juncus \ Kalk-Binse, Stumpfblütige Binse / Blunt-Flowered Rush |  | Juncaceae \ Binsengewächse / Rush Fam. |  | D 
NL | 
|  | suborbicularis, Ranunculus \ Scheibenblättriger Gold-Hahnenfuß / Disk-Leaved Goldilocks |  | Ranunculaceae \ Hahnenfußgew. / Buttercup Fam. |  | D | 
|  | subovata, Malva \ Strand-Strauchpappel / Sea Mallow |  | Malvaceae \ Malvengewächse / Mallow Fam. |  | D 
I 
Mal | 
|  | subovatum, Bupleurum \ Lanzettblättriges Hasenohr / Lance-Leaved Thorough-Wax |  | Apiaceae \ Doldenblütler / Umbellifers |  | Sam | 
|  | subplanum, Aeonium −−> Aeonium canariense subsp. latifolium |  | Crassulaceae \ Dickblattgew. / Stonecrop Fam. |  | Gom | 
|  | subrudecta, Punctelia \ Gefleckte Punktflechte / Speckled Punctelia |  | Lecanorales \ Flechten / Lichens |  | D | 
|  | subsphaerica, Crataegus x \ Verschiedenzähniger Weißdorn / Hybrid Hawthorn |  | Rosaceae \ Rosengewächse / Rose Fam. |  | D | 
|  | subspicata, Satureja \ Zwerg-Bohnenkraut / Summer Savory |  | Lamiaceae \ Lippenblütler / Mint Fam. |  | HR | 
|  |  substituta (1 Taxon + 2 Syn.) |  |  |  |  | 
|  | subterraneum, Trifolium \ Bodenbürtiger Klee / Subterranean Clover |  | Fabaceae \ Schmetterlingsblütler / Legumes |  | D 
F 
GR 
Kef | 
|  |  subtetrandrum (1 Taxon + 2 Syn.) |  |  |  |  | 
|  | subtriflorum, Cerastium \ Isonzo-Hornkraut, Armblütiges Hornkraut / Slovenian Mouse-Ear |  | Caryophyllaceae \ Nelkengew. / Campion Fam. |  | HR | 
|  | subtruncatus, Ranunculus \ Gestutzter Gold-Hahnenfuß / Truncated Goldilocks |  | Ranunculaceae \ Hahnenfußgew. / Buttercup Fam. |  | D | 
|  | subulata var. glabrata, Sagina \ Pfriemen-Mastkraut, Sternmoos / Heath Pearlwort, Scottish Moss |  | Caryophyllaceae \ Nelkengew. / Campion Fam. |  | D | 
|  | subulata, Agardhiella \ Agardhiella / Agardhiella ? |  | Rhodophytina \ Rot-Algen / Red Algae |  | D 
NL | 
|  | subulatum, Symphyotrichum \ Schuppige Aster, Einjährige Salz-Aster / Annual Saltmarsh Aster, Baby's Breath Aster |  | Asteraceae \ Korbblütler / Composite Fam. |  | D 
F 
GR 
I | 
|  | subulatus, Aster −−> Symphyotrichum subulatum |  | Asteraceae \ Korbblütler / Composite Fam. |  | D 
F 
GR 
I | 
|  | subundulatum, Taraxacum cf. \ Feingewellter Löwenzahn / Fine-Wavy Dandelion ? |  | Asteraceae \ Korbblütler / Composite Fam. |  | D | 
|  | subvillosum, Allium \ Wenigbehaarter Lauch, Zottiger Lauch / Western Mediterranean Garlic |  | Liliaceae \ Liliengewächse / Lily Fam. |  | Mal | 
|  | subvillosus, Scorpiurus muricatus var. \ Zottiger Skorpionsschwanz / Hairy Scorpion's Tail |  | Fabaceae \ Schmetterlingsblütler / Legumes |  | Chi 
Sam | 
|  |  sudetica (3 Taxa) |  |  |  |  | 
|  |  suecica (2 Taxa + 1 Syn.) |  |  |  |  | 
|  | suecicum, Chenopodium \ Grüner Gänsefuß, Schwedischer Gänsefuß / Swedish Goosefoot |  | Chenopodiaceae \ Gänsefußgew. / Goosefoot Fam.
 |  | A 
D | 
|  | suecicus, Cotoneaster x \ Schwedische Zwergmispel / Swedish Cotoneaster |  | Rosaceae \ Rosengewächse / Rose Fam. |  | D | 
|  | suevicus, Ranunculus \ Schwäbischer Gold-Hahnenfuß / Suebian Goldilocks |  | Ranunculaceae \ Hahnenfußgew. / Buttercup Fam. |  | D | 
|  | suffocatum, Trifolium \ Schmächtiger Klee / Suffocated Clover ? |  | Fabaceae \ Schmetterlingsblütler / Legumes |  | Rho | 
|  | suffruticosa subsp. fulgida, Calendula \ Halbstrauchige Ringelblume / Woody Marigold |  | Asteraceae \ Korbblütler / Composite Fam. |  | Siz | 
|  | suffruticosa, Medicago \ Halbstrauchiger Schneckenklee / Sprawling Medick |  | Fabaceae \ Schmetterlingsblütler / Legumes |  | F | 
|  | suffruticosum, Linum \ Strauchiger Lein / White Flax |  | Linaceae \ Leingewächse / Linseed Fam. |  | E 
F | 
|  | sulcata, Parmelia \ Furchen-Schlüsselflechte, Sulcat-Blattflechte / Net-Marked Shield Lichen |  | Lecanorales \ Flechten / Lichens |  | D | 
|  |  sulcatus (2 Taxa) |  |  |  |  | 
|  |  sulphurea (2 Taxa + 1 Syn.) |  |  |  |  | 
|  | sulphurina, Cladonia \ Schwefelgelbe Becher-Flechte / Sulphur Cup Lichen ? |  | Lecanorales \ Flechten / Lichens |  | A 
D | 
|  |  sumatrensis (1 Taxon + 1 Syn.) |  |  |  |  | 
|  | superba, Perovskia x −−> Salvia x floriferior |  | Lamiaceae \ Lippenblütler / Mint Fam. |  | D 
GR | 
|  | superbus subsp. alpestris, Dianthus \ Alpen-Prachtnelke / Alpine Superb Pink |  | Caryophyllaceae \ Nelkengew. / Campion Fam. |  | A 
I | 
|  | superbus subsp. superbus, Dianthus \ Gewöhnliche Prachtnelke / Superb Pink, Large Pink |  | Caryophyllaceae \ Nelkengew. / Campion Fam. |  | D | 
|  | superbus, Dianthus superbus subsp. \ Gewöhnliche Prachtnelke / Superb Pink, Large Pink |  | Caryophyllaceae \ Nelkengew. / Campion Fam. |  | D | 
|  |  supina (5 Taxa + 3 Syn.) |  |  |  |  | 
|  |  supinum (2 Taxa) |  |  |  |  | 
|  |  supinus (1 Taxon + 3 Syn.) |  |  |  |  | 
|  | suprasilvaticus, Ranunculus \ Oberwald-Gold-Hahnenfuß / Oberwald Goldilocks |  | Ranunculaceae \ Hahnenfußgew. / Buttercup Fam. |  | F | 
|  | surrejanus, Juncus x −−> Juncus acutiflorus x articulatus |  | Juncaceae \ Binsengewächse / Rush Fam. |  | D | 
|  | suspensa x viridissima, Forsythia −−> Forsythia x intermedia |  | Oleaceae \ Ölbaumgewächse / Ash Fam. |  | D | 
|  | suspensa, Forsythia \ Forsythie, Goldflieder / Golden Bell |  | Oleaceae \ Ölbaumgewächse / Ash Fam. |  | D | 
|  | sylvatica subsp. ascendens, Calamintha −−> Clinopodium menthifolium subsp. ascendens |  | Lamiaceae \ Lippenblütler / Mint Fam. |  | E 
F 
GR 
HR | 
|  | sylvatica subsp. sieberi, Luzula −−> Luzula sieberi |  | Juncaceae \ Binsengewächse / Rush Fam. |  | A | 
|  | sylvatica subsp. sylvatica, Calamintha −−> Clinopodium menthifolium subsp. menthifolium |  | Lamiaceae \ Lippenblütler / Mint Fam. |  | D 
E 
GR 
HR | 
|  |  sylvatica (7 Taxa + 4 Syn.) |  |  |  |  | 
|  |  sylvaticum (8 Taxa + 1 Syn.) |  |  |  |  | 
|  |  sylvaticus (3 Taxa + 1 Syn.) |  |  |  |  | 
|  | sylvester, Aruncus −−> Aruncus dioicus |  | Rosaceae \ Rosengewächse / Rose Fam. |  | A 
D 
F 
HR 
SLO | 
|  | sylvestre, Erysimum \ Lack-Schöterich, Felsen-Schöterich / Wood Treacle Mustard |  | Brassicaceae \ Kreuzblütler / Crucifers |  | A 
I | 
|  | sylvestris subsp. australis, Tulipa \ Südliche Wild-Tulpe / Wild Tulip |  | Liliaceae \ Liliengewächse / Lily Fam. |  | E 
F 
I 
Tun | 
|  | sylvestris subsp. godronianus, Dianthus \ Jungfräuliche Stein-Nelke, Godrons Nelke / Virgin Pink |  | Caryophyllaceae \ Nelkengew. / Campion Fam. |  | F 
I | 
|  | sylvestris subsp. longicaulis, Dianthus \ Langstängelige Stein-Nelke / Long-Stem Wood Pink |  | Caryophyllaceae \ Nelkengew. / Campion Fam. |  | D | 
|  | sylvestris subsp. mauritiana, Malva \ Mauretanische Malve / Mallow-Tree |  | Malvaceae \ Malvengewächse / Mallow Fam. |  | D 
GR | 
|  | sylvestris subsp. stenophyllus, Anthriscus \ Schmalzipfeliger Wiesen-Kerbel / Narrow-Leaved Cow Parsley |  | Apiaceae \ Doldenblütler / Umbellifers |  | D | 
|  | sylvestris subsp. sylvestris, Tulipa \ Wild-Tulpe / Wild Tulip |  | Liliaceae \ Liliengewächse / Lily Fam. |  | D | 
|  |  sylvestris (20 Taxa + 4 Syn.) |  |  |  |  | 
|  |  syriaca (5 Taxa + 1 Syn.) |  |  |  |  | 
|  |  syriacum (3 Taxa) |  |  |  |  | 
|  | syriacus, Hibiscus \ Strauch-Eibisch, Hibiskus / Rose Mallow, Rose of Sharon |  | Malvaceae \ Malvengewächse / Mallow Fam. |  | D | 
|  | syrticola, Oenothera −−> Oenothera oakesiana |  | Onagraceae \ Nachtkerzengew. / Willowherb Fam. |  | D | 
|  | 
|  | 
|  | 
|  | 
|  | 
|  | 
|  |