As - Bp
| Asarina procumbens | Asarine Niederliegende | Trailing Snapdragon | Plantaginaceae |
| Asarum europaeum | Haselwurz Gewöhnliche | Asarabacca | Apocynaceae |
| Asclepias curassavica | Seidenpflanze Curacao | Red Milkweed | Apocynaceae |
| Asclepias syriaca | Seidenpflanze Gewöhnliche | Common Milkweed | Apocynaceae |
| Asclepias tuberosa | Seidenpflanze Curacao | Butterfly Milkweed | Apocynaceae |
| Asparagus acutifolius | Spargel Spitzblättriger | Sharp- leaved Asparagus | Asparagaceae |
| Asparagus albus | Spargel Weißstängeliger | White Asparagus | Asparagaceae |
| Asparagus aphyllus | Spargel Blattloser | Mediterranean Asparagus | Asparagaceae |
| Asparagus asparagoides | Spargel Stechwinden | Smilax Asparagus | Asparagaceae |
| Asparagus horridus | Spargel Schrecklicher | Grey Asparagus | Asparagaceae |
| Asparagus macrorrhizus | Spargel Großwurzeliger | Large- rooted Asparagus | Asparagaceae |
| Asparagus maritimus | Spargel Meeres | Sea Asparagus | Asparagaceae |
| Asparagus officinalis | Spargel Gemüse | Garden Asparagus | Asparagaceae |
| Asparagus pseudoscaber | Spargel Rauer | False Asparagus | Asparagaceae |
| Asparagus setaceus | Spargel Feder | Fern Asparagus | Asparagaceae |
| Asparagus tenuifolius | Spargel Zartblättriger | Narrow- leaved Asparagus | Asparagaceae |
| Asparagus verticillatus | Spargel Wirtel | Whorled Asparagus | Asparagaceae |
| Asperugo procumbens | Schlangenäuglein | German Madwort | Boraginaceae |
| Asperula arvensis | Meister Acker | Blue Woodruff | Boraginaceae |
| Asperula lutea | Meister Gelber | Yellow Woodruff | Boraginaceae |
| Asperula paui | Meister Paus | Pau's Woodruff | Boraginaceae |
| Asphodeline brevicaulis | Junkerlilie Kurzstängelige | Short- stemmed King's Spear | Asphodelaceae |
| Asphodeline liburnica | Junkerlilie Liburnische | Liburnian King's Spear | Asphodelaceae |
| Asphodeline lutea | Junkerlilie Gelbe | Yellow King's Spear | Asphodelaceae |
| Asphodeline taurica | Junkerlilie Krim | White King's Spear | Asphodelaceae |
| Asphodelus aestivus | Affodil Sommer | Summer Asphodel | Asphodelaceae |
| Asphodelus albus | Affodil Weißer | White Asphodel | Asphodelaceae |
| Asphodelus ayardii | Affodil Ayards | Ayard's Asphodel | Asphodelaceae |
| Asphodelus bento- rainhae | Affodil Rainhas | Rainha's Asphodel | Asphodelaceae |
| Asphodelus cerasiferus | Affodil Kirschen | Cherry Asphodel | Asphodelaceae |
| Asphodelus fistulosus | Affodil Röhriger | Tubular Asphodel | Asphodelaceae |
| Asphodelus lusitanicus | Affodil Portugiesischer | Portuguese Asphodel | Asphodelaceae |
| Asphodelus macrocarpus | Affodil Großfrüchtiger | Large- fruited Asphodel | Asphodelaceae |
| Asphodelus ramosus | Affodil Ästiger | Branched Asphodel | Asphodelaceae |
| Asphodelus roseus | Affodil Rosa | Pink Asphodel | Asphodelaceae |
| Asphodelus serotinus | Affodil Später | Late Asphodel | Asphodelaceae |
| Asphodelus tenuifolius | Affodil Schmalblättriger | Narrow- leaved Asphodel | Asphodelaceae |
| Aspidistra elatior | Schusterpalme Hohe | Cast Iron- Plant | Convallariaceae |
| Asplenium adiantum- nigrum | Streifenfarn Schwarzstieliger | Black Spleenwort | Aspleniaceae |
| Asplenium adulterinum | Streifenfarn Braungrüner | Ladder Spleenwort | Aspleniaceae |
| Asplenium aegaeum | Streifenfarn Ägäis | Aegean Spleenwort | Aspleniaceae |
| Asplenium balearicum | Streifenfarn Balearen | Balearic Spleenwort | Aspleniaceae |
| Asplenium bourgaei | Streifenfarn Bourgeaus | Bourgeau's Spleenwort | Aspleniaceae |
| Asplenium celtibericum | Streifenfarn Celtiberischer | Celtiberian Spleenwort | Aspleniaceae |
| Asplenium ceterach | Milzfarn | Scale Fern | Aspleniaceae |
| Asplenium creticum | Streifenfarn Kretischer | Cretan Spleenwort | Aspleniaceae |
| Asplenium cuneifolium | Streifenfarn Serpentin | Serpentine Spleenwort | Aspleniaceae |
| Asplenium fissum | Streifenfarn Zerschlitzter | Cleft Spleenwort | Aspleniaceae |
| Asplenium fontanum | Streifenfarn Jura | Smooth Spleenwort | Aspleniaceae |
| Asplenium foreziense | Streifenfarn Französischer | Mount Forez Spleenwort | Aspleniaceae |
| Asplenium hemionitis | Efeufarn | Mule Fern | Aspleniaceae |
| Asplenium hispanicum | Streifenfarn Spanischer | Spanish Spleenwort | Aspleniaceae |
| Asplenium hybridum | Hirschzungenfarn Bastard | Bastard Hart's-tongue Fern | Aspleniaceae |
| Asplenium jahandiezii | Streifenfarn Jahandiez' | Jahandiez's Spleenwort | Aspleniaceae |
| Asplenium lepidum ssp. haussknechtii | Streifenfarn Haussknechts | Haussknecht's Spleenwort | Aspleniaceae |
| Asplenium lepidum ssp. lepidum | Streifenfarn Zarter | Elegant Spleenwort | Aspleniaceae |
| Asplenium majoricum | Streifenfarn Mallorquiner | Majorcan Spleenwort | Aspleniaceae |
| Asplenium marinum | Streifenfarn Meer | Sea Spleenwort | Aspleniaceae |
| Asplenium obovatum ssp. billotii | Streifenfarn Lanzettblättriger | Lanceolate Spleenwort | Aspleniaceae |
| Asplenium obovatum ssp. obovatum | Streifenfarn Eiblättriger | Ovoid Spleenwort | Aspleniaceae |
| Asplenium onopteris | Streifenfarn Spitzer | Irish Spleenwort | Aspleniaceae |
| Asplenium petrarchae | Streifenfarn Petrarcas | Petrarca's Spleenwort | Aspleniaceae |
| Asplenium presolanense | Streifenfarn Presolana | Presolana Spleenwort | Aspleniaceae |
| Asplenium ruta- muraria | Streifenfarn Mauer | Wall- rue Spleenwort | Aspleniaceae |
| Asplenium sagittatum | Hirschzungenfarn Pfeilblättriger | Sagittate Hart's-tongue Fern | Aspleniaceae |
| Asplenium scolopendrium | Hirschzungenfarn Gewöhnlicher | Common Hart's-tongue Fern | Aspleniaceae |
| Asplenium seelosii | Streifenfarn Dolomit | Dolomite Spleenwort | Aspleniaceae |
| Asplenium septentrionalis | Streifenfarn Nördlicher | Forked Spleenwort | Aspleniaceae |
| Asplenium trichomanes | Streifenfarn Braunstieliger | Maidenhair Spleenwort | Aspleniaceae |
| Asplenium viride | Streifenfarn Grünstieliger | Green Spleenwort | Aspleniaceae |
| Aster alpinus | Aster Alpen | Alpine Aster | Asteraceae |
| Aster amellus | Aster Berg | Italian Aster | Asteraceae |
| Aster pyrenaeus | Aster Pyrenäen | Pyrenean Aster | Asteraceae |
| Aster willkommii | Aster Willkomms | Willkomm's Aster | Asteraceae |
| Asteriscus aquaticus | Strandstern Einjähriger | Golden Star | Asteraceae |
| Asteriscus hierichunticus | Strandstern Jericho | False Rose of Jericho | Asteraceae |
| Astragalus agraniotii | Tragant Agraniotis' | Agraniotis's Milkvetch | Fabaceae |
| Astragalus algarbiensis | Tragant Algarve | Algarve Milkvetch | Fabaceae |
| Astragalus algerianus | Tragant Algerischer | Algerian Milkvetch | Fabaceae |
| Astragalus alopecuroides | Tragant Fuchsschwanzähnlicher | Foxtail- like Milkvetch | Fabaceae |
| Astragalus alopecurus | Tragant Fuchsschwanz | Foxtail Milkvetch | Fabaceae |
| Astragalus alpinus | Tragant Alpen | Alpine Milkvetch | Fabaceae |
| Astragalus angustiflorus ssp. anatolicus | Tragant Anatolischer | Anatolian Milkvetch | Fabaceae |
| Astragalus angustifolius | Tragant Schmalblättriger | Narrow- leaved Milkvetch | Fabaceae |
| Astragalus appollineus | Tragant Apollons | Apollon's Milkvetch | Fabaceae |
| Astragalus aquilanus | Tragant L'Aquilia | L'Aquilia Milkvetch | Fabaceae |
| Astragalus arenarius | Tragant Sand | Sand Milkvetch | Fabaceae |
| Astragalus asper | Tragant Rauer | Rough Milkvetch | Fabaceae |
| Astragalus australis | Tragant Südlicher | Indian Milkvetch | Fabaceae |
| Astragalus austriacus | Tragant Österreichischer | Austrian Milkvetch | Fabaceae |
| Astragalus austroaegaeus | Tragant Südägäischer | South- Aegean Milkvetch | Fabaceae |
| Astragalus autranii | Tragant Autrans | Autran's Milkvetch | Fabaceae |
| Astragalus baionensis | Tragant Bayonner | Bayonne Milkvetch | Fabaceae |
| Astragalus baldaccii | Tragant Baldaccis | Baldacci's Milkvetch | Fabaceae |
| Astragalus balearicus | Tragant Balearischer | Balearic Milkvetch | Fabaceae |
| Astragalus boeticus | Tragant Baetischer | Baetian Milkvetch | Fabaceae |
| Astragalus bourgaeanus | Tragant Bourgeaus | Bourgeau's Milkvetch | Fabaceae |
| Astragalus calabrus | Tragant Kalabrischer | Calabrian Milkvetch | Fabaceae |
| Astragalus caprinus ssp. huetii | Tragant Huets | Huet's Milkvetch | Fabaceae |
| Astragalus cavanillesii | Tragant Cavanilles' | Cavanilles's Milkvetch | Fabaceae |
| Astragalus cicer | Tragant Kicher | Chickpea Milkvetch | Fabaceae |
| Astragalus clusianus | Tragant Clusius' | Clusius's Milkvetch | Fabaceae |
| Astragalus condensatus | Tragant Kompakter | Compact Milkvetch | Fabaceae |
| Astragalus contortuplicatus | Tragant Ungarischer | Hungarian Milkvetch | Fabaceae |
| Astragalus creticus | Tragant Kretischer | Cretan Milkvetch | Fabaceae |
| Astragalus croaticus | Tragant Kroatischer | Croatian Milkvetch | Fabaceae |
| Astragalus cylleneus | Tragant Mt. Kyllini | Mt. Kyllini Milkvetch | Fabaceae |
| Astragalus cymbicarpos | Tragant Bootfrüchtiger | Boat- fruited Milkvetch | Fabaceae |
| Astragalus danicus | Tragant Dänischer | Danish Milkvetch | Fabaceae |
| Astragalus dasyanthus | Tragant Wollblütiger | Wooly- flowered Milkvetch | Fabaceae |
| Astragalus depressus | Tragant Niederliegender | Sprawling Milkvetch | Fabaceae |
| Astragalus devesae | Tragant Devesas | Devesa's Milkvetch | Fabaceae |
| Astragalus dolinicola | Tragant Dolinen | Doline Milkvetch | Fabaceae |
| Astragalus drupaceus | Tragant Steinfrüchtiger | Drupe Milkvetch | Fabaceae |
| Astragalus echinatus | Tragant Igel | Hedgehog Milkvetch | Fabaceae |
| Astragalus edulis | Tragant Essbarer | Edible Milkvetch | Fabaceae |
| Astragalus epiglottis | Tragant Dreieckschoten | Triangle- pod Milkvetch | Fabaceae |
| Astragalus exscapus | Tragant Stängelloser | Stemless Milkvetch | Fabaceae |
| Astragalus fialae | Tragant Fialas | Fiala's Milkvetch | Fabaceae |
| Astragalus frigidus | Tragant Gletscher | Arctic Milkvetch | Fabaceae |
| Astragalus genargenteus | Tragant Gennargentu | Gennargentu Milkvetch | Fabaceae |
| Astragalus gennarii | Tragant Gennaris | Gennari's Milkvetch | Fabaceae |
| Astragalus gilvus | Tragant Rhodischer | Rhodian Milkvetch | Fabaceae |
| Astragalus gines- lopezii | Tragant Gines Lopez' | Gines Lopez's Milkvetch | Fabaceae |
| Astragalus gladiatus | Tragant Schwert | Sword Milkvetch | Fabaceae |
| Astragalus glaux | Tragant Milchkraut | Glaux Milkvetch | Fabaceae |
| Astragalus glycyphylloides | Tragant Süßholzähnlicher | Licorice- like Milkvetch | Fabaceae |
| Astragalus glycyphyllos | Tragant Süßer | Licorice Milkvetch | Fabaceae |
| Astragalus granatensis | Tragant Granada | Granada Milkvetch | Fabaceae |
| Astragalus graecus | Tragant Griechischer | Greek Milkvetch | Fabaceae |
| Astragalus greuteri | Tragant Greuters | Greuter's Milkvetch | Fabaceae |
| Astragalus guttatus | Tragant Gefleckter | Spotted Milkvetch | Fabaceae |
| Astragalus hamosus | Tragant Haken | Hooked Milkvetch | Fabaceae |
| Astragalus hellenicus | Tragant Hellenischer | Hellenic Milkvetch | Fabaceae |
| Astragalus hispanicus | Tragant Spanischer | Spanish Milkvetch | Fabaceae |
| Astragalus hypoglottis | Tragant Purpur | Purple Milkvetch | Fabaceae |
| Astragalus idaeus | Tragant Ida | Mt. Ida Milkvetch | Fabaceae |
| Astragalus incanus | Tragant Grauer | Grey Milkvetch | Fabaceae |
| Astragalus kamarinensis | Tragant Kamarina | Kamarina Milkvetch | Fabaceae |
| Astragalus laconicus | Tragant Lakonischer | Laconian Milkvetch | Fabaceae |
| Astragalus lacteus | Tragant Milchweißer | Milkwhite Milkvetch | Fabaceae |
| Astragalus leontinus | Tragant Lienzer | Tyrolian Milkvetch | Fabaceae |
| Astragalus lesbiacus | Tragant Lesbos | Lesbian Milkvetch | Fabaceae |
| Astragalus longidentatus | Tragant Langzähniger | Long- teethed Milkvetch | Fabaceae |
| Astragalus maritimus | Tragant Strand | Sea Milkvetch | Fabaceae |
| Astragalus monspessulanus | Tragant Montpellier | Montpellier Milkvetch | Fabaceae |
| Astragalus monspessulanus ssp. gypsophilus | Tragant Gips | Gypsum Milkvetch | Fabaceae |
| Astragalus muelleri | Tragant Müllers | Mueller's Milkvetch | Fabaceae |
| Astragalus nebrodensis | Tragant Nebrodi | Mt. Nebrodi Milkvetch | Fabaceae |
| Astragalus nevadensis | Tragant Sierra Nevada | Sierra Nevada Milkvetch | Fabaceae |
| Astragalus nitidiflorus | Tragant Glänzendblättriger | Murcia Milkvetch | Fabaceae |
| Astragalus norvegicus | Tragant Norwegischer | Norwegian Milkvetch | Fabaceae |
| Astragalus nummularius | Tragant Rundblättriger | Round- leaved Milkvetch | Fabaceae |
| Astragalus odoratus | Tragant Duftender | Lesser Milkvetch | Fabaceae |
| Astragalus onobrychis | Tragant Esparsetten | Sainfoin Milkvetch | Fabaceae |
| Astragalus oxyglottis | Tragant Spitzfrüchtiger | Sharp- tongued Milkvetch | Fabaceae |
| Astragalus parnassi | Tragant Parnassos | Mt. Parnassos Milkvetch | Fabaceae |
| Astragalus pelecinus | Tragant Sägehülsen | Double- toothed Milkvetch | Fabaceae |
| Astragalus penduliflorus | Tragant Blasen | Mountain Milkvetch | Fabaceae |
| Astragalus peregrinus | Tragant Fremder | Alien Milkvetch | Fabaceae |
| Astragalus physocalyx | Tragant Blasenkelchiger | Bladder- calyced Milkvetch | Fabaceae |
| Astragalus ponticus | Tragant Pontischer | Pontic Milkvetch | Fabaceae |
| Astragalus raphaelis | Tragant Raphaelis' | Raphaelis's Milkvetch | Fabaceae |
| Astragalus rumelicus | Tragant Rumelischer | Rumelian Milkvetch | Fabaceae |
| Astragalus scorpioides | Tragant Skorpion | Scorpion Milkvetch | Fabaceae |
| Astragalus sempervirens | Tragant Dorniger | Spiny Milkvetch | Fabaceae |
| Astragalus sericophyllus | Tragant Seidenblättriger | Silk- leaved Milkvetch | Fabaceae |
| Astragalus sesameus | Tragant Sesam | Sesame Milkvetch | Fabaceae |
| Astragalus siculus | Tragant Sizilianischer | Sicilian Milkvetch | Fabaceae |
| Astragalus sinaicus | Tragant Sinai | Sinai Milkvetch | Fabaceae |
| Astragalus sirinicus | Tragant Monte Sirino | Monte Sirino Milkvetch | Fabaceae |
| Astragalus spruneri | Tragant Spruners | Spruner's Milkvetch | Fabaceae |
| Astragalus stella | Tragant Stern | Star Milkvetch | Fabaceae |
| Astragalus suberosus ssp. haarbachii | Tragant Haarbachs | Haarbach's Milkvetch | Fabaceae |
| Astragalus sulcatus | Tragant Furchen | Furrowed Milkvetch | Fabaceae |
| Astragalus taygeteus | Tragant Taygettos | Taygettos Milkvetch | Fabaceae |
| Astragalus tegulensis | Tragant Capo Teulada | Capo Teulada Milkvetch | Fabaceae |
| Astragalus terraccianoi | Tragant Terraccianos | Terracciano's Milkvetch | Faba |
| Astragalus thermensis | Tragant Sciacca | Sciacca Milkvetch | Fabaceae |
| Astragalus thracicus | Tragant Thrakischer | Thracian Milkvetch | Fabaceae |
| Astragalus tragacantha | Tragant Marseille | Marseille Milkvetch | Fabaceae |
| Astragalus tremolsianus | Tragant Tremols' | Tremols's Milkvetch | Fabaceae |
| Astragalus turolensis | Tragant Teruel | Teruel Milkvetch | Fabaceae |
| Astragalus tymphresteus | Tragant Tymphristos | Tymphristos Milkvetch | Fabaceae |
| Astragalus utriger | Tragant Blasentragender | Bladder- bearing Milkvetch | Fabaceae |
| Astragalus verrucosus | Tragant Warzen | Warty Milkvetch | Fabaceae |
| Astragalus vesicarius | Tragant Blasen | Inflated Milkvetch | Fabaceae |
| Astragalus vesicarius ssp. pastellianus | Tragant Monte Pastello | Monte Pastello Milkvetch | Fabaceae |
| Astragalus wilmottianus | Tragant Wilmotts | Wilmott's Milkvetch | Fabaceae |
| Astrantia bavarica | Sterndolde Bayerische | Bavarian Masterwort | Apiaceae |
| Astrantia carniolica | Sterndolde Krainer | Carnic Masterwort | Apiaceae |
| Astrantia major | Sterndolde Große | Greater Masterwort | Apiaceae |
| Astrantia minor | Sterndolde Kleine | Lesser Masterwort | Apiaceae |
| Astrantia pauciflora | Sterndolde Wenigblütige | Few- flowered Masterwort | Apiaceae |
| Asyneuma anthericoides | Hasenglocke Großblütige | Anthericum- like Asyneuma | Campanulaceae |
| Asyneuma canescens | Hasenglocke Graue | Grey Asyneuma | Campanulaceae |
| Asyneuma comosiforme | Hasenglocke Büschelige | Albanian Asyneuma | Campanulaceae |
| Asyneuma giganteum | Hasenglocke Große | Large Asyneuma | Campanulaceae |
| Asyneuma limonifolium | Hasenglocke Strandfliederblättrige | Sealavander- leaved Asyneuma | Campanulaceae |
| Asyneuma trichocalycinum | Hasenglocke Haarkelchige | Pichler's Asyneuma | Campanulaceae |
| Asyneuma virgatum | Hasenglocke Ruten | Rod- shaped Asyneuma | Campanulaceae |
| Athyrium distentifolium | Frauenfarn Gebirgs | Alpine Lady Fern | Athyriaceae |
| Athyrium filix- femina | Frauenfarn Gewöhnlicher | Common Lady Fern | Athyriaceae |
| Atractylis cancellata | Spindelkraut Gitter | Grid Thistle | Asteracea |
| Atractylis humilis | Spindelkraut Niedriges | Purple Prickly Cnicus | Asteracea |
| Atraphaxis billardierei | Bocksweizen Labillardières | Labillardières Atraphaxis | Polygonaceae |
| Atriplex calotheca | Melde Pfeilblättrige | Hastate Orache | Chenopodiaceae |
| Atriplex davisii | Melde Davis' | Davis's Orache | Chenopodiaceae |
| Atriplex glabriuscula | Melde Kahle | Babington's Orache | Chenopodiaceae |
| Atriplex glauca | Melde Graugrüne | Waxy Saltbush | Chenopodiaceae |
| Atriplex halimus | Melde Strauch | Mediterranean Saltbush | Chenopodiaceae |
| Atriplex hortensis | Melde Garten | Garden Orache | Chenopodiaceae |
| Atriplex intracontinentalis | Melde Binnenland | Intracontinental Orache | Chenopodiaceae |
| Atriplex laciniata | Melde Gelapptblättrige | Belgian Orache | Chenopodiaceae |
| Atriplex littoralis | Melde Strand | Grassleaf- Orache | Chenopodiaceae |
| Atriplex longipes | Melde Gestieltfrüchtige | Long- stalked Orache | Chenopodiaceae |
| Atriplex micrantha | Melde Verschiedensamige | Two- seeded Orache | Chenopodiaceae |
| Atriplex mollis | Melde Weiche | Softhair Orache | Chenopodiaceae |
| Atriplex oblongifolia | Melde Langblättrige | Oblong- leaf- Orache | Chenopodiaceae |
| Atriplex patula | Melde Spreizende | Common Orache | Chenopodiaceae |
| Atriplex pedunculata | Melde Salz | Pedunculate Sea- Purslane | Chenopodiaceae |
| Astragalus peregrinus | Tragant Fremder | Alien Milkvetch | Fabaceae |
| Atriplex portulacoides | Melde Ausdauernde | Sea- Purslane | Chenopodiaceae |
| Atriplex praecox | Melde Frühe | Early Orache | Chenopodiaceae |
| Atriplex prostrata | Melde Keil | Spear Orache | Chenopodiaceae |
| Atriplex recurva | Melde Gekrümmte | Curved Orache | Chenopodiaceae |
| Atriplex rosea | Melde Rosen | Tumbling Orache | Chenopodiaceae |
| Atriplex sagittata | Melde Glanz | Glossy- leaved Orache | Chenopodiaceae |
| Atriplex semibaccata | Melde Rotfrucht | Australian Saltbush | Chenopodiaceae |
| Atriplex suberecta | Melde Halbaufrechte | Sprawling Saltbush | Chenopodiaceae |
| Atriplex tatarica | Melde Tataren | Tatarian Orache | Chenopodiaceae |
| Atriplex tornabenei | Melde Tornabenes | Tornabene's Orache | Chenopodiaceae |
| Atropa baetica | Tollkirsche Spanische | Baetian Black Cherry | Solanaceae |
| Atropa belladonna | Tollkirsche Echte | Poison Black Cherry | Solanaceae |
| Aucuba japonica | Goldorange Japanische | Japanese Laurel | Garryaceae |
| Aurinia moreana | Steinkraut Mores | More's Alison | Brassicaceae |
| Aurinia saxatilis | Steinkraut Felsen | Basket of Gold | Brassicaceae |
| Azolla cristata | Algenfarn Kleiner | Mexican Mosquitofern | Salviniaceae |
| Azolla filiculoides | Algenfarn Großer | Pacific Mosquitofern | Salviniaceae |
| Bacopa monnieri | Fettblatt Kleines | Monniers Water Hyssop | Plantaginaceae |
| Bacopa rotundifolia | Fettblatt Rundblättriges | Round- leaf Water Hyssop | Plantaginaceae |
| Baldellia alpestris | Igelschlauch Gebirgs | Mountain Waterplantain | Alismataceae |
| Baldellia ranunculoides | Igelschlauch Hahnenfußähnlicher | Lesser Waterplantain | Alismataceae |
| Baldellia repens | Igelschlauch Kriechender | Creeping Waterplantain | Alismataceae |
| Ballota acetabulosa | Schwarznessel Napf | Wick- bearing Horehound | Lamiaceae |
| Ballota hirsuta | Schwarznessel Behaarte | Hairy Horehound | Lamiaceae |
| Ballota hispanica | Schwarznessel Spanische | Spanish Horehound | Lamiaceae |
| Ballota nigra | Schwarznessel Gewöhnliche | Black Horehound | Lamiaceae |
| Ballota pseudodictamnus | Schwarznessel Kreta | Grecian Horehound | Lamiaceae |
| Bassia hyssopifolia | Radmelde Ysopblättrige | Fivehorn Smotherweed | Chenopodiaceae |
| Bassia laniflora | Radmelde Sand | Wooly Smotherweed | Chenopodiaceae |
| Bassia prostrata | Radmelde Halbstrauchige | Forage Kochia | Chenopodiaceae |
| Bassia scoparia | Radmelde Besen | Summer Cypress | Chenopodiaceae |
| Bauhinia variegata | Bahinie Bunte | Variegated Bauhinia | Fabaceae |
| Bellardia trixago | Bellardie Bunte | Mediterranean Lineseed | Orobanchaceae |
| Bellevallia brevipedicellata | Bellevalie Kurzgestielte | Short- pedicelled Bellevalia | Hyacinthaceae |
| Bellevallia ciliata | Bellevalie Bewimperte | Ciliate- leaved Bellevalia | Hyacinthaceae |
| Bellevallia dubia | Bellevalie Zweifelhafte | Doubtful Bellevalia | Hyacinthaceae |
| Bellevallia edirnensis | Bellevalie Edirne | Edirne Bellevalia | Hyacinthaceae |
| Bellevallia hyacinthoides | Bellevalie Hyazinthenähnliche | Hyacinth- like Bellevalia | Hyacinthaceae |
| Bellevallia juliana | Bellevalie Julias | Julia's Bellevalia | Hyacinthaceae |
| Bellevallia romana | Bellevalie Römische | Roman Bellevalia | Hyacinthaceae |
| Bellevallia sitiaca | Bellevalie Sitia | Sitia Bellevalia | Hyacinthaceae |
| Bellevallia trifoliata | Bellevalie Dreiblättrige | Three- leaved Bellevalia | Hyacinthaceae |
| Bellevallia webbiana | Bellevalie Webbs | Webb's Bellevalia | Hyacinthaceae |
| Bellidiastrum michelii | Alpenmaßliebchen Michelis | Mountain Daisy | Asteraceae |
| Bellis annua | Gänseblümchen Einjähriges | Annual Daisy | Asteraceae |
| Bellis bernardii | Gänseblümchen Korsisches | Corsican Daisy | Asteraceae |
| Bellis cordifolia | Gänseblümchen Herzblättriges | Heart- leaved Daisy | Asteraceae |
| Bellis longifolia | Gänseblümchen Langblättriges | Cretan Daisy | Asteraceae |
| Bellis margaritifolia | Gänseblümchen Margaritenblättriges | Calabrian Daisy | Asteraceae |
| Bellis perennis | Gänseblümchen Gewöhnliches | Meadow Daisy | Asteraceae |
| Bellis sylvestris | Gänseblümchen Wald | Large Daisy | Asteraceae |
| Bellium artrutxense | Zwerggänseblümchen Artrutx | Artrutx Daisy | Asteraceae |
| Bellium bellidioides | Zwerggänseblümchen Echtes | False Daisy | Asteraceae |
| Bellium crassifolium | Zwerggänseblümchen Echtes | Thick leaved Daisy | Asteraceae |
| Bellium minutum | Zwerggänseblümchen Kleines | Tiny leaved Daisy | Asteraceae |
| Bellium nivale | Zwerggänseblümchen Schnee | Snow Daisy | Asteraceae |
| Berberis aetnensis | Berberitze Ätna | Mount Etna Barberry | Berberidaceae |
| Berberis cretica | Berberitze Kretische | Cretan Barberry | Berberidaceae |
| Berberis hispanica | Berberitze Spanische | Spanish Barberry | Berberidaceae |
| Berberis vulgaris | Berberitze Gewöhnliche | Common Barberry | Berberidaceae |
| Bergia capensis | Bergie Kap | White Water Fire | Elatinaceae |
| Beta adanensis | Rübe Adana | Adana Beet | Chenopodiaceae |
| Beta macrocarpa | Rübe Großfrüchtige | Large- fruited Beet | Chenopodiaceae |
| Beta maritima | Rübe Meer | Sea Beet | Chenopodiaceae |
| Beta nana | Rübe Zwerg | Dwarf Beet | Chenopodiaceae |
| Beta patellaris | Rübe Napffrüchtige | Cup- fruited Beet | Chenopodiaceae |
| Beta trigyna | Rübe Dreigriffelige | Three- styled Beet | Chenopodiaceae |
| Beta vulgaris | Rübe Gewöhnliche | Common Beet | Chenopodiaceae |
| Betonica alopecuros | Betonie Gelbe | Yellow Betony | Lamiaceae |
| Betonica haussknechtii | Betonie Haussknechts | Haussknecht's Betony | Lamiaceae |
| Betonica hirsuta | Betonie Zottige | Hirsute Betony | Lamiaceae |
| Betonica scardica | Betonie Balkan | Balkan Betony | Lamiaceae |
| Betonica officinalis | Betonie Gewöhnliche | Common Betony | Lamiaceae |
| Betonica serotina | Betonie Späte | Late flowered Betony | Lamiaceae |
| Betula humilis | Birke Niedrige | Shrubby Birch | Betulaceae |
| Betula nana | Birke Zwerg | Dwarf Birch | Betulaceae |
| Betula pendula | Birke Hänge | European White Birch | Betulaceae |
| Betula pubescens | Birke Moor | Downy Birch | Betulaceae |
| Betula utilis | Birke Himalaya | Himalayan Birch | Betulaceae |
| Biarum carratracense | Biarum Carratraca | Carratraca Biarum | Araceae |
| Biarum davisii | Biarum Davis' | Davis's Biarum | Araceae |
| Biarum dispar | Biarum Ungleiches | Unequal Biarum | Araceae |
| Biarum ditschianum | Biarum Ditschs | Ditsch's Biarum | Araceae |
| Biarum fraasianum | Biarum Fraas' | Fraas's Biarum | Araceae |
| Biarum marmarisense | Biarum Marmaris | Marmaris Biarum | Araceae |
| Biarum mendax | Biarum Täuschendes | Deceptive Biarum | Araceae |
| Biarum rhopalospadix | Biarum Keulen | Cudgel Biarum | Araceae |
| Biarum tenuifolium | Schmalblättriges Biarum | Barrow- leaved Biarum | Araceae |
| Bidens alba | Zweizahn Weißer | White Beggartick | Asteraceae |
| Bidens aurea | Zweizahn Goldener | Arizona Beggartick | Asteraceae |
| Bidens bipinnata | Zweizahn Fiederblättriger | Hemlock Beggartick | Asteraceae |
| Bidens cernua | Zweizahn Nickender | Nodding Beggartick | Asteraceae |
| Bidens connata | Zweizahn Verwachsenblättriger | Purplestem Beggartick | Asteraceae |
| Bidens ferulifolia | Zweizahn Fenchelblättriger | Fern- leaved Beggartick | Asteraceae |
| Bidens frondosa | Zweizahn Schwarzfrüchtiger | Devil's Beggartick | Asteraceae |
| Bidens pilosa | Zweizahn Behaarter | Hairy Beggartick | Asteraceae |
| Bidens radiata | Zweizahn Strahliger | Radiate Beggartick | Asteraceae |
| Bidens subalternans | Zweizahn Rio Grande | Arizona Beggartick | Asteraceae |
| Bidens tripartita | Zweizahn Dreiteiliger | Trifid Beggartick | Asteraceae |
| Bidens vulgata | Zweizahn Gewöhnlicher | Common Beggartick | Asteraceae |
| Biebersteinia orphanidis | Biebersteinie Orphanidis | Orphanidis's Biebersteinia | Biebersteiniaceae |
| Biserrula epiglottis | Tragant Dreieckschoten | Triangle- pod Milkvetch | Fabaceae |
| Biserrula pelecinus | Sägehülsen- Tragant | Double- toothed Milkvetch | Fabaceae |
| Bistorta affinis | Wiesenknöterich Teppich | Himalayan Bistort | Polygonaceae |
| Bistorta amplexicaulis | Wiesenknöterich Kerzen | Red Bistort | Polygonaceae |
| Bistorta officinalis | Wiesenknöterich Schlangen | Meadow Bistort | Polygonaceae |
| Bistorta vivipara | Wiesenknöterich Knöllchen | Alpine Bistort | Polygonaceae |
| Bituminaria basaltica | Asphaltklee Basalt | Basalt Trefoil | Fabaceae |
| Bituminaria bituminosa | Asphaltklee Gewöhnlicher | Pitch Trefoil | Fabaceae |
| Bituminaria morisiana | Asphaltklee Moris | Moris's Trefoil | Fabaceae |
| Bituminaria plumosa | Asphaltklee Federiger | Feathery Trefoil | Fabaceae |
| Blackstonia acuminata | Bitterling Später | Late Yellow- Wort | Gentianaceae |
| Blackstonia grandiflora | Bitterling Großblütiger | Large- flowered Yellow- Wort | Gentianaceae |
| Blackstonia imperfoliata | Bitterling Freiblättriger | Imperfoliate Yellow- Wort | Gentianaceae |
| Blackstonia perfoliata | Bitterling Durchwachsenblättriger | Perfoliate Yellow- Wort | Gentianaceae |
| Blechnum spicant | Rippenfarn Gewöhnlicher | Deer Fern | Blechnaceae |
| Blitum bonus- henricus | Guter Heinrich | Good King Henry | Chenopodiaceae |
| Blitum capitatum | Erdbeerspinat Kopfiger | Strawberry- blight | Chenopodiaceae |
| Blitum petiolare | Erdbeerspinat Gestielter | Petiolate Goosefoot | Chenopodiaceae |
| Blitum virgatum | Erdbeerspinat Durchblätterter | Leafy Goosefoot | Chenopodiaceae |
| Blyxa japonica | Fadenkraut Japanisches | Japanese Threadwort | Chenopodiaceae |
| Boehmeria nivea | Ramie Schneeweiße | China Grass | Urticaceae |
| Boerhavia repens | Boerhavie Kriechende | Broad- leaved Alena | Nyctaginaceae |
| Bongardia chrysogonum | Bongardie Goldene | Golden Lady´s Nightcap | Berberidaceae |
| Borago morisiana | Boretsch Moris | Moris's Borage | Boraginaceae |
| Borago officinalis | Boretsch Einjähriger | Common Borage | Boraginaceae |
| Borago pygmaea | Boretsch Ausdauernder | Bell- flowered Borage | Boraginaceae |
| Botrychium lanceolatum | Mondraute Lanzettliche | Triangle Moonwort | Ophioglossaceae |
| Botrychium lunaria | Mondraute Echte | Common Moonwort | Ophioglossaceae |
| Botrychium matricariifolium | Mondraute Ästige | Daisy- leaf Moonwort | Ophioglossaceae |
| Botrychium multifidum | Mondraute Vielteilige | Leathery Moonwort | Ophioglossaceae |
| Botrychium simplex | Mondraute Einfache | Least Moonwort | Ophioglossaceae |
| Botrychium virginianum | Mondraute Virginische | Rattlesnake Fern | Ophioglossaceae |
| Botrypus virginianus | Mondraute Virginische | Rattlesnake Fern | Ophioglossaceae |
| Bougainvillea glabra | Bougainvillea Kahle | Paper flower | Nyctaginaceae |
| Bougainvillea spectabilis | Bougainvillea Große | Great Bougainvillea | Nyctaginaceae |