Br - Card
| Brimeura amethystina | Wiesenhyazinthe Amethyst | Amethyst Hyacinth | Hyacinthaceae |
| Brimeura duvigneaudii | Wiesenhyazinthe Duvigneauds | Duvigneaud's Hyacinth | Hyacinthaceae |
| Brimeura fastigiata | Wiesenhyazinthe Pouzolzs | Pouzolz's Hyacinth | Hyacinthaceae |
| Broussonetia papyrifera | Maulbeere Papier | Paper Mulberry | Moraceae |
| Bruckenthalia spiculifolia | Heide Siebenbürger | Balkan Heather | Ericaceae |
| Brugmansia aurea x suaveolens | Engelstrompete Hybrid | Hybrid Angels Trumpet | Solanaceae |
| Brunnera macrophylla | Vergissmeinnicht Kaukasus | Siberian Bugloss | Boraginaceae |
| Bryonia acuta | Zaunrübe Spitze | Acute Bryony | Cucurbitaceae |
| Bryonia alba | Zaunrübe Weiße | White Bryony | Cucurbitaceae |
| Bryonia cretica | Zaunrübe Kretische | Cretan Bryony | Cucurbitaceae |
| Bryonia dioica ssp. dioica | Zaunrübe Rotfrüchtige | Red- berried Bryony | Cucurbitaceae |
| Bryonia dioica ssp. marmorata | Zaunrübe Marmorierte | Marmorate Bryony | Cucurbitaceae |
| Bubon albanicum | Augenwurz Albanische | Albanian Candy Carrot | Apiaceae |
| Bubon arachnoideum | Augenwurz Spinnwebige | Arachnoid Candy Carrot | Apiaceae |
| Bubon macedonicum | Augenwurz Mazedonische | Macedonian Candy Carrot | Apiaceae |
| Buddleja davidii | Sommerflieder Gewöhnlicher | Orange- eye Butterflybush | Scrophulariaceae |
| Buglossoides arvensis | Rindszunge Acker | Corn Gromwell | Boraginaceae |
| Buglossoides calabra | Rindszunge Kalabrische | Calabrian Gromwell | Boraginaceae |
| Buglossoides gastonii | Rindszunge Gastons | Gaston's Gromwell | Boraginaceae |
| Buglossoides incrassata | Rindszunge Dickstiel | Mediterranean Field Gromwell | Boraginaceae |
| Buglossoides minima | Rindszunge Zwerg | Dwarf Gromwell | Boraginaceae |
| Buglossoides purpurocaerulea | Rindszunge Purpurblauer | Purple Gromwell | Boraginaceae |
| Buglossoides sibthorpiana | Rindszunge Sibthorps | Sibthorp's Gromwell | Boraginaceae |
| Buglossoides tenuiflora | Rindszunge Zartblütige | Thin- flowered Gromwell | Boraginaceae |
| Bunium alpinum | Knollenkümmel Alpen | Alpine Pignut | Apiaceae |
| Bunium balearicum | Knollenkümmel Balearen | Balearic Pignut | Apiaceae |
| Bunium bulbocastanum | Knollenkümmel Gewöhnlicher | Great Pignut | Apiaceae |
| Bunium ferulaceum | Knollenkümmel Fenchel | Fennel Pignut | Apiaceae |
| Bunium macuca | Knollenkümmel Macuca | Macuca Pignut | Apiaceae |
| Bunium microcarpum | Knollenkümmel Kleinfrüchtiger | Small- fruited Pignut | Apiaceae |
| Bunium pachypodum | Knollenkümmel Verdickter | Thickened Pignut | Apiaceae |
| Bunium tenerum | Knollenkümmel Zarter | Slender Pignut | Apiaceae |
| Buphthalmum inuloides | Ochsenauge Alantähnliches | Inula- like Ox- Eye | Asteraceae |
| Buphthalmum salicifolium | Ochsenauge Weidenblättriges | Yellow Ox- Eye | Asteraceae |
| Bupleurum acutifolium | Hasenohr Spitzblättriges | Sharp- leaved Hare's Ear | Apiaceae |
| Bupleurum aequiradiatum | Hasenohr Gleichstrahliges | Equal- rayed Hare's Ear | Apiaceae |
| Bupleurum affine | Hasenohr Ungarisches | Hungarian Hare's Ear | Apiaceae |
| Bupleurum aira | Hasenohr Naxos | Naxos Hare's Ear | Apiaceae |
| Bupleurum affine | Hasenohr Ungarisches | Hungarian Hare's Ear | Apiaceae |
| Bupleurum alpigenum | Hasenohr Alpen | Alpine Hare's Ear | Apiaceae |
| Bupleurum angulosum | Hasenohr Pyreäen | Pyrenean Hare's Ear | Apiaceae |
| Bupleurum apiculatum | Hasenohr Bespitztes | Apiculate Hare's Ear | Apiaceae |
| Bupleurum asperuloides | Hasenohr Meisterähnliches | Asperula- like Hare's Ear | Apiaceae |
| Bupleurum baldense | Hasenohr Monte Baldo | Monte Baldo Hare's Ear | Apiaceae |
| Bupleurum barceloi | Hasenohr Balearen | Barcelo's Hare's Ear | Apiaceae |
| Bupleurum capillare | Hasenohr Haarfeines | Hair- like Hare's Ear | Apiaceae |
| Bupleurum commutatum | Hasenohr Verwechseltes | Confused Hare's Ear | Apiaceae |
| Bupleurum corsicum | Hasenohr Korsisches | Corsican Hare's Ear | Apiaceae |
| Bupleurum dianthifolium | Hasenohr Marettimo | Marettimo Hare's Ear | Apiaceae |
| Bupleurum elatum | Hasenohr Hohes | High Hare's Ear | Apiaceae |
| Bupleurum euboeum | Hasenohr Euböa | Euboean Hare's Ear | Apiaceae |
| Bupleurum exaltatum | Hasenohr Nickendes | Nodding Hare's Ear | Apiaceae |
| Bupleurum falcatum | Hasenohr Sichel | Sickle- leaved Hare's Ear | Apiaceae |
| Bupleurum flavicans | Hasenohr Gelbliches | Yellowish Hare's Ear | Apiaceae |
| Bupleurum flavum | Hasenohr Gelbes | Yellow Hare's Ear | Apiaceae |
| Bupleurum foliosum | Hasenohr Reichblättriges | Leafy Hare's Ear | Apiaceae |
| Bupleurum fruticescens | Hasenohr Strauchähnliches | Bush- like Hare's Ear | Apiaceae |
| Bupleurum fruticosum | Hasenohr Strauchiges | Shrubby Hare's Ear | Apiaceae |
| Bupleurum gaudianum | Hasenohr Gavdos | Gavdos Hare's Ear | Apiaceae |
| Bupleurum glumaceum | Hasenohr Spelzen | Glume Hare's Ear | Apiaceae |
| Bupleurum gibraltarium | Hasenohr Gibraltar | Gibraltar Hare's Ear | Apiaceae |
| Bupleurum gracile | Hasenohr Zierliches | Slender Hare's Ear | Apiaceae |
| Bupleurum greuteri | Hasenohr Greuters | Greuter's Hare's Ear | Apiaceae |
| Bupleurum gussonei | Hasenohr Gussones | Gussone's Hare's Ear | Apiaceae |
| Bupleurum kakiskalae | Hasenohr Kakiskala | Kakiskala Hare's Ear | Apiaceae |
| Bupleurum karglii | Hasenohr Kargls | Kargl's Hare's Ear | Apiaceae |
| Bupleurum lancifolium | Hasenohr Lanzettblättriges | Lanceleaf- Hare's Ear | Apiaceae |
| Bupleurum longifolium | Hasenohr Langblättriges | Long- leaved Hare's Ear | Apiaceae |
| Bupleurum marschallianum | Hasenohr Marschalls | Marschall's Hare's Ear | Apiaceae |
| Bupleurum odontites | Hasenohr Zahntrost | Fontanesi's Hare's Ear | Apiaceae |
| Bupleurum pachnospermum | Hasenohr Starrfrucht | Stiff- fruited Hare's Ear | Apiaceae |
| Bupleurum petraeum | Hasenohr Felsen | Rock Hare's Ear | Apiaceae |
| Bupleurum praealtum | Hasenohr Hohes | High Hare's Ear | Apiaceae |
| Bupleurum ranunculoides | Hasenohr Hahnenfuß | Crowfoot- leaved Ear | Apiaceae |
| Bupleurum rigidum ssp. paniculatum | Hasenohr Rispiges | Paniculate Hare's Ear | Apiaceae |
| Bupleurum rigidum ssp. rigidum | Hasenohr Steifes | Paniculate Hare's Ear | Apiaceae |
| Bupleurum rollii | Hasenohr Rollis | Rolli's Hare's Ear | Apiaceae |
| Bupleurum rotundifolium | Hasenohr Rundblättriges | Round- leaved Hare's Ear | Apiaceae |
| Bupleurum semicompositum | Hasenohr Graues | Grey Hare's Ear | Apiaceae |
| Bupleurum stellatum | Hasenohr Stern | Starry Hare's Ear | Apiaceae |
| Bupleurum subovatum | Hasenohr Ovalblättriges | Oval Hare's Ear | Apiaceae |
| Bupleurum tenuissimum | Hasenohr Salz | Slender Hare's Ear | Apiaceae |
| Bupleurum trichopodum | Hasenohr Zwerg Haariges | Hairy Dwarf Hare's Ear | Apiaceae |
| Bupleurum veronense | Hasenohr Verona | Verona Hare's Ear | Apiaceae |
| Bupleurum virgatum | Hasenohr Ruten | Gerard's Hare's Ear | Apiaceae |
| Butomus umbellatus | Schwanenblume | Flowering Rush | Butomaceae |
| Buxus balearica | Buchsbaum Balearen | Balearic Box | Buxaceae |
| Buxus sempervirens | Buchsbaum Gewöhnlicher | Common Box | Buxaceae |
| Cabomba caroliniana | Haarnixe Carolina | Carolina Fanwort | Cabombaceae |
| Cachrys cristata | Basiliskenkraut Kamm | Spiny Cachrys | Apiaceae |
| Cachrys libanotis | Basiliskenkraut Glattes | Libanon Cachrys | Apiaceae |
| Cachrys pungens | Basiliskenkraut Stechendes | Pungent Cachrys | Apiaceae |
| Cachrys sicula | Basiliskenkraut Sizilianisches | Sicilian Cachrys | Apiaceae |
| Cakile maritima | Meersenf Europäischer | Europaean Searocket | Brassicaceae |
| Calamintha einseleana | Bergminze Österreichische | Einsele's Calamint | Lamiaceae |
| Calamintha grandiflora | Bergminze Großblütige | Greater Calamint | Lamiaceae |
| Calamintha menthifolia | Bergminze Wald | Wood Calamint | Lamiaceae |
| Calamintha nepeta | Bergminze Kleinblütige | Lesser Calamint | Lamiaceae |
| Caldesia parnassifolia | Froschlöffel Parnassiablättriger | Parnassialeaf Water Plantain | Alismataceae |
| Calendula arvensis | Ringelblume Acker | Field Marigold | Asteraceae |
| Calendula officinalis | Ringelblume Garten | Common Marigold | Asteraceae |
| Calendula stellata | Ringelblume Stern | Star Marigold | Asteraceae |
| Calendula suffruticosa | Ringelblume Halbstrauchige | Woody Marigold | Asteraceae |
| Calendula tripterocarpa | Ringelblume Dreiflügelige | Winged- fruited Marigold | Asteraceae |
| Calicotome infesta | Dornginster Feindlicher | Hostile Thorny Broom | Asteraceae |
| Calicotome intermedia | Dornginster Mittlerer | Intermediate Thorny Broom | Asteraceae |
| Calicotome spinosa | Dornginster Stachliger | Spiny Thorny Broom | Asteraceae |
| Calicotome villosa | Dornginster Behaarter | Hairy Thorny Broom | Asteraceae |
| Calla palustris | Schlangenwurz Sumpf | Water Arum | Araceae |
| Callianthemum anemonoides | Schlangenwurz Windröschen | Eastern Callianthemum | Ranunculaceae |
| Callianthemum coriandrifolium | Schlangenwurz Korianderblättriges | Coriander- leaved Callianthemum | Ranunculaceae |
| Callianthemum kernerianum | Schlangenwurz Kerners | Kerner's Callianthemum | Ranunculaceae |
| Callicarpa americana | Schönfrucht Amerikanische | American Beautyberry | Lamiaceae |
| Callicarpa bodinieri | Schönfrucht Chinesische | Chinese Beautyberry | Lamiaceae |
| Callistemon citrinus | Pfeifenputzer Karminroter | Crimson Bottlebrush | Myrtaceae |
| Callistemon phoeniceus | Pfeifenputzer Scharlachroter | Scarlet Bottlebrush | Myrtaceae |
| Callitriche brutia | Wasserstern Stielfrüchtiger | Pedunculate Water- Strawort | Plantaginaceae |
| Callitriche cophocarpa | Wasserstern Nussfrüchtiger | Blunt- fruited Water- Strawort | Plantaginaceae |
| Callitriche cribrosa | Wasserstern Perforierter | Cribrose Water- Strawort | Plantaginaceae |
| Callitriche hamulata | Wasserstern Haken | Intermediate Water- Strawort | Plantaginaceae |
| Callitriche hermaphroditica | Wasserstern Herbst | Autumn Water- Strawort | Plantaginaceae |
| Callitriche lenisulca | Wasserstern Gefurchter | Spring Water- Strawort | Plantaginaceae |
| Callitriche lusitanica | Wasserstern Portugiesischer | Portuguese Water- Strawort | Plantaginaceae |
| Callitriche obtusangula | Wasserstern Nussfrüchtiger | Blunt- fruited Water- Strawort | Plantaginaceae |
| Callitriche palustris | Wasserstern Sumpf | Vernal Water- Strawort | Plantaginaceae |
| Callitriche platycarpa | Wasserstern Flachfrüchtiger | Various- leaved Water- Strawort | Plantaginaceae |
| Callitriche pulchra | Wasserstern Gestutzter | Short- leaved Water- Strawort | Plantaginaceae |
| Callitriche regis- jubae | Wasserstern König Jubas | King Juba's Water- Strawort | Plantaginaceae |
| Callitriche stagnalis | Wasserstern Teich | Pond Water- Strawort | Plantaginaceae |
| Callitriche truncata | Wasserstern Gestutzter | Short- leaved Water- Strawort | Plantaginaceae |
| Calocedrus decurrens | Weihrauchzeder Kalifornische | California Incense Cedar | Cupressaceae |
| Caltha palustris | Dotterblume Sumpf | Marsh Marigold | Ranunculaceae |
| Calystegia pulchra | Zaunwinde Schöne | Hairy False Bindweed | Convolvulaceae |
| Calystegia soldanella | Zaunwinde Strand | Seashore False Bindweed | Convolvulaceae |
| Calystegia sepium | Zaunwinde Echte | Hedge False Bindweed | Convolvulaceae |
| Calystegia silvatica | Zaunwinde Wald | Shortstalk False Bindweed | Convolvulaceae |
| Campanula adsurgens | Glockenblume Aufrechte | Arising Bellflower | Campanulaceae |
| Campanula affinis | Glockenblume Verwandte | Related Bellflower | Campanulaceae |
| Campanula aizoides | Glockenblume Aizoonähnliche | Aizoon- like Bellflower | Campanulaceae |
| Campanula aizoon | Glockenblume Dickstängelige | Aizoon Bellflower | Campanulaceae |
| Campanula albanica | Glockenblume Albanische | Albanian Bellflower | Campanulaceae |
| Campanula alliariifolia | Glockenblume Knoblauchraukenblättrige | Cornish Bellflower | Campanulaceae |
| Campanula alpestris | Glockenblume Westalpen | Large- flowered Bellflower | Campanulaceae |
| Campanula alpina | Glockenblume Alpen | Alpine Bellflower | Campanulaceae |
| Campanula anchusiflora | Glockenblume Ochsenzungenblütige | Ox- tongue Bellflower | Campanulaceae |
| Campanula andrewsii | Glockenblume Andrews | Andrew's Bellflower | Campanulaceae |
| Campanula apennina | Glockenblume Apenninen | Apennine Bellflower | Campanulaceae |
| Campanula arvatica | Glockenblume Oviedo | Orviedo Bellflower | Campanulaceae |
| Campanula aureliana | Glockenblume Aurelius' | Aurelius's Bellflower | Campanulaceae |
| Campanula austroadriatica | Glockenblume Südadriatische | Southadriatic Bellflower | Campanulaceae |
| Campanula barbata | Glockenblume Bärtige | Bearded Bellflower | Campanulaceae |
| Campanula baumgartenii | Glockenblume Baumgartens | Baumgarten's Bellflower | Campanulaceae |
| Campanula beckiana | Glockenblume Niederösterreich | Beck's Bellflower | Campanulaceae |
| Campanula bertolae | Glockenblume Bertolas | Bertola's Bellflower | Campanulaceae |
| Campanula bononiensis | Glockenblume Bologneser | Pale Bellflower | Campanulaceae |
| Campanula boreosporadum | Glockenblume Sporaden | Sporades Bellflower | Campanulaceae |
| Campanula cabezudoi | Glockenblume Großköpfige | Large- headed Bellflower | Campanulaceae |
| Campanula calaminthifolia | Glockenblume Bergminzenblättrige | Amorgos Bellflower | Campanulaceae |
| Campanula cantabrica | Glockenblume Kantabrische | Cantabrian Bellflower | Campanulaceae |
| Campanula carpatha | Glockenblume Karpathos | Karpathos Bellflower | Campanulaceae |
| Campanula carnica | Glockenblume Karnische | Round- leaved Bellflower | Campanulaceae |
| Campanula celsii ssp. carystea | Glockenblume Karystos | Karystos Bellflower | Campanulaceae |
| Campanula celsii ssp. celsii | Glockenblume Cels' Gewöhnliche | Common Cels' Bellflower | Campanulaceae |
| Campanula celsii ssp. parnesia | Glockenblume Parnitha | Parnitha Bellflower | Campanulaceae |
| Campanula celsii ssp. spathulata | Glockenblume Cels' Spatelblättrige | Spatulate Cels's Bellflower | Campanulaceae |
| Campanula cenisia | Glockenblume Mont Cenis | Mount Cenis Bellflower | Campanulaceae |
| Campanula cervicaria | Glockenblume Borstige | Bristly Bellflower | Campanulaceae |
| Campanula cespitosa | Glockenblume Rasen | Carpet Bellflower | Campanulaceae |
| Campanula cochleariifolia | Glockenblume Kleine | Earleaf Bellflower | Campanulaceae |
| Campanula columnaris | Glockenblume Säulen | Column Bellflower | Campanulaceae |
| Campanula constantini | Glockenblume Konstantins | Constantin's Bellflower | Campanulaceae |
| Campanula cremnophila | Glockenblume Hügel | Slope Bellflower | Campanulaceae |
| Campanula cretica | Glockenblume Kretische | Cretan Bellflower | Campanulaceae |
| Campanula creutzburgii | Glockenblume Creutzburgs | Cretzburg's Bellflower | Campanulaceae |
| Campanula cymaea | Glockenblume Verzweigte | Branched Bellflower | Campanulaceae |
| Campanula decumbens | Glockenblume Niederliegende | Prostrate Bellflower | Campanulaceae |
| Campanula delicatula | Glockenblume Zarte | Delicate Bellflower | Campanulaceae |
| Campanula dichotoma | Glockenblume Verzweigte | Forked Bellflower | Campanulaceae |
| Campanula diekii | Glockenblume Diecks | Diecks Bellflower | Campanulaceae |
| Campanula drabifolia | Glockenblume Hungerblumenblättrige | Draba- leaved Bellflower | Campanulaceae |
| Campanula elatines | Glockenblume Piemonteser | Piedmontese Bellflower | Campanulaceae |
| Campanula elatinoides | Glockenblume Lombardische | Lomardian Bellflower | Campanulaceae |
| Campanula erinus | Glockenblume Zwerg | Small Bellflower | Campanulaceae |
| Campanula euboica | Glockenblume Euböa | Euboean Bellflower | Campanulaceae |
| Campanula excisa | Glockenblume Eingeschnittene | Perforate Bellflower | Campanulaceae |
| Campanula fastigiata | Glockenblume Büschel | Fastigiate Bellflower | Campanulaceae |
| Campanula fenestrellata | Glockenblume Fenster | Adriatic Bellflower | Campanulaceae |
| Campanula foliosa | Glockenblume Reichblättrige | Leafy Bellflower | Campanulaceae |
| Campanula formanekiana | Glockenblume Makedonische | Formanek's Bellflower | Campanulaceae |
| Campanula forsythii | Glockenblume Forsyths | Forsyth's Bellflower | Campanulaceae |
| Campanula fragilis | Glockenblume Zerbrechliche | Italian Bellflower | Campanulaceae |
| Campanula fritschii | Glockenblume Fritschs | Fritsch's Bellflower | Campanulaceae |
| Campanula garganica | Glockenblume Gargano | Gargano Bellflower | Campanulaceae |
| Campanula garganica ssp. garganica | Glockenblume Gargano Gewöhnliche | Common Gargano Bellflower | Campanulaceae |
| Campanula gentilis | Glockenblume Edle | Noble Bellflower | Campanulaceae |
| Campanula glomerata | Glockenblume Knäulige | Clustered Bellflower | Campanulaceae |
| Campanula goulimyi | Glockenblume Goulimis | Goulimis Bellflower | Campanulaceae |
| Campanula hagielia | Glockenblume Hagios | Large Rhodian Bellflower | Campanulaceae |
| Campanula hawkinsiana | Glockenblume Hawkins | Hawkins' Bellflower | Campanulaceae |
| Campanula hercegovina | Glockenblume Herzegowische | Hercegovinian Bellflower | Campanulaceae |
| Campanula herminii | Glockenblume Montes Herminios | Mount Herminios Bellflower | Campanulaceae |
| Campanula heterophylla | Glockenblume Verschiedenblättrige | Naxos Bellflower | Campanulaceae |
| Campanula hierapetrae | Glockenblume Ierapetra | Ierapetra Bellflower | Campanulaceae |
| Campanula hispanica | Glockenblume Spanische | Spanish Bellflower | Campanulaceae |
| Campanula hofmannii | Glockenblume Hofmanns | Bosnian Bellflower | Campanulaceae |
| Campanula incurva | Glockenblume Gekrümmte | Evvia Bellflower | Campanulaceae |
| Campanula isophylla | Glockenblume Stern | Star Bellflower | Campanulaceae |
| Campanula jaubertiana | Glockenblume Jauberts | Jaubert's Bellflower | Campanulaceae |
| Campanula justiniana | Glockenblume Karst | Justin's Bellflower | Campanulaceae |
| Campanula kamariana | Glockenblume Kamaris | Kamari's Bellflower | Campanulaceae |
| Campanula laciniata | Glockenblume Schlitzblättrige | Lacy- leaved Bellflower | Campanulaceae |
| Campanula lanata | Glockenblume Wollige | Wooly Bellflower | Campanulaceae |
| Campanula lanceolata | Glockenblume Lanzettblättrige | Lanceolate- leaved Bellflower | Campanulaceae |
| Campanula latifolia | Glockenblume Breitblättige | Giant Bellflower | Campanulaceae |
| Campanula lavrensis | Glockenblume Lavra | Lavra Bellflower | Campanulaceae |
| Campanula lingulata | Glockenblume Zungen | Tongue Bellflower | Campanulaceae |
| Campanula lusitanica | Portugiesische Glockenblume | Portuguese Bellflower | Campanulaceae |
| Campanula lycica | Glockenblume Lykische | Lycian Bellflower | Campanulaceae |
| Campanula lyrata | Glockenblume Leier | Lyre- leaved Bellflower | Campanulaceae |
| Campanula macrorhiza | Glockenblume Rüben | Large- rooted Bellflower | Campanulaceae |
| Campanula macrostachya | Glockenblume Vielblütige | Many- flowred Bellflower | Campanulaceae |
| Campanula marchesettii | Glockenblume Marchesetti | Marchesetti's Bellflower | Campanulaceae |
| Campanula matritensis | Glockenblume Madrilenische | Madrilenean Bellflower | Campanulaceae |
| Campanula medium | Glockenblume Marien | Canterbury Bells | Campanulaceae |
| Campanula merxmuelleri | Glockenblume Merxmüllers | Merxmueller's Bellflower | Campanulaceae |
| Campanula moesiaca | Glockenblume Mösische | Moesian Bellflower | Campanulaceae |
| Campanula mollis | Glockenblume Weiche | Soft Bellflower | Campanulaceae |
| Campanula montenegrina | Glockenblume Montenegro | Montenegran Bellflower | Campanulaceae |
| Campanula moravica | Glockenblume Mährische | Moravican Bellflower | Campanulaceae |
| Campanula morettiana | Glockenblume Dolomiten | Moretti's Bellflower | Campanulaceae |
| Campanula olivieri | Glockenblume Oliviers | Olivier's Bellflower | Campanulaceae |
| Campanula oreadum | Glockenblume Oreaden | Oread Bellflower | Campanulaceae |
| Campanula orphanidea | Glockenblume Orphanides | Orphanides Bellflower | Campanulaceae |
| Campanula papillosa | Glockenblume Wazige | Papillose Bellflower | Campanulaceae |
| Campanula parnassica | Glockenblume Parnass | Parnass Bellflower | Campanulaceae |
| Campanula patula | Glockenblume Wiesen | Spreading Bellflower | Campanulaceae |
| Campanula pelviformis | Glockenblume Breitglockige | Wide- bowled Bellflower | Campanulaceae |
| Campanula persicifolia | Glockenblume Pfirsichblättrige | Peachleaved Bellflower | Campanulaceae |
| Campanula petraea | Glockenblume Weiße | White Bellflower | Campanulaceae |
| Campanula phrygia | Glockenblume Phrygische | Phrygian Bellflower | Campanulaceae |
| Campanula pinatzii | Glockenblume Pinatzis | Pinatzi's Bellflower | Campanulaceae |
| Campanula portenschlagiana | Glockenblume Dalmatiner | Dalmatian Bellflower | Campanulaceae |
| Campanula poscharskyana | Glockenblume Poscharsky | Serbian Bellflower | Campanulaceae |
| Campanula praesignis | Glockenblume Rax | Rax Bellflower | Campanulaceae |
| Campanula precatoria | Glockenblume Rosenkranz | Rosary Bellflower | Campanulaceae |
| Campanula primulifolia | Glockenblume Primelblättrige | Spanish Bellflower | Campanulaceae |
| Campanula psudostenocodon | Glockenblume Stenocodonähnliche | Stenocodon- like Bellflower | Campanulaceae |
| Campanula pulla | Glockenblume Österreichische | Austrian Bellflower | Campanulaceae |
| Campanula pyramidalis | Glockenblume Pyramiden | Chimney Bellflower | Campanulaceae |
| Campanula radicosa | Glockenblume Vielwurzelige | Rooty Bellflower | Campanulaceae |
| Campanula raineri | Glockenblume Insubrische | Rainer's Bellflower | Campanulaceae |
| Campanula ramosissima | Glockenblume Ästige | Branched Bellflower | Campanulaceae |
| Campanula rapunculoides | Glockenblume Acker | Creeping Bellflower | Campanulaceae |
| Campanula rapunculus | Glockenblume Rapunzel | Rampion Bellflower | Campanulaceae |
| Campanula rechingeri | Glockenblume Rechingers | Rechinger's Bellflower | Campanulaceae |
| Campanula reiseri | Glockenblume Reisers | Reiser's Bellflower | Campanulaceae |
| Campanula rhodensis | Glockenblume Rhodos | Rhodian Bellflower | Campanulaceae |
| Campanula rhomboidalis | Glockenblume Rautenblättige | Diamond- leaved Bellflower | Campanulaceae |
| Campanula rotundifolia | Glockenblume Rundblättrige | Harebell, Bluebell | Campanulaceae |
| Campanula rupestris | Glockenblume Felsen | Rock Bellflower | Campanulaceae |
| Campanula rupicola | Glockenblume Felsbewohnende | Rock- living Bellflower | Campanulaceae |
| Campanula sabatia | Glockenblume Savona | Savona Bellflower | Campanulaceae |
| Campanula samothracica | Glockenblume Samothraki | Samothrace Bellflower | Campanulaceae |
| Campanula saonissia | Glockenblume Saonissos | Saonissos Bellflower | Campanulaceae |
| Campanula sartorii | Glockenblume Sartoris | Sartori's Bellflower | Campanulaceae |
| Campanula saxatilis | Glockenblume Stein | Stone Bellflower | Campanulaceae |
| Campanula scheuchzeri | Glockenblume Scheuchzers | Scheuchzer's Bellflower | Campanulaceae |
| Campanula sciathia | Glockenblume Skiathos | Skiathos Bellflower | Campanulaceae |
| Campanula scopelia | Glockenblume Skopelos | Skopelos Bellflower | Campanulaceae |
| Campanula scutellata | Glockenblume Schild | Bowl- like Bellflower | Campanulaceae |
| Campanula secundiflora | Glockenblume Einseitswendige | Secund Bellflower | Campanulaceae |
| Campanula semisecta | Glockenblume Halbgeteilte | Half- devided Bellflower | Campanulaceae |
| Campanula sibirica | Glockenblume Sibirische | Siberian Bellflower | Campanulaceae |
| Campanula simulans | Glockenblume Nachahmende | Imitating Bellflower | Campanulaceae |
| Campanula skanderbegii | Glockenblume Skandenbegs | Skandengbeg's Bellflower | Campanulaceae |
| Campanula sparsa | Glockenblume Lockere | Scatterd Bellflower | Campanulaceae |
| Campanula spatulata | Glockenblume Spatelblättrige | Spatula- like Bellflower | Campanulaceae |
| Campanula speciosa | Glockenblume Pyrenäen | Pyrenaean Bellflower | Campanulaceae |
| Campanula specularioides | Glockenblume Spiegelnde | Shining Bellflower | Campanulaceae |
| Campanula spicata | Glockenblume Ähren | Spiked Bellflower | Campanulaceae |
| Campanula stenocodon | Glockenblume Schmalblütige | Cottian Bellflower | Campanulaceae |
| Campanula stenosiphon | Glockenblume Schmalröhrige | Narrow tube Bellflower | Campanulaceae |
| Campanula tanfanii | Glockenblume Tanfanis | Tanfani's Bellflower | Campanulaceae |
| Campanula teutana | Glockenblume Teutas | Teuta's Bellflower | Campanulaceae |
| Campanula thessala | Glockenblume Thessalische | Monocarpic Bellflower | Campanulaceae |
| Campanula thyrsoides | Glockenblume Strauß | Yellow Bellflower | Campanulaceae |
| Campanula topaliana | Glockenblume Topalis | Topali's Bellflower | Campanulaceae |
| Campanula tommasiniana | Glockenblume Tommasinis | Croatian Bellflower | Campanulaceae |
| Campanula trachelium | Glockenblume Nesselblättige | Bellflower Nettle- Leaved | Campanulaceae |
| Campanula transtagana | Glockenblume Tejo | Tejo Bellflower | Campanulaceae |
| Campanula tubulosa | Glockenblume Röhrige | Tubular Bellflower | Campanulaceae |
| Campanula tymphaea | Glockenblume Thymphaea | Tymphaea Bellflower | Campanulaceae |
| Campanula velebitica | Glockenblume Velebit | Velebit Bellflower | Campanulaceae |
| Campanula versicolor | Glockenblume Verschiedenfarbige | Apulian Bellflower | Campanulaceae |
| Campanula waldsteiniana | Glockenblume Waldsteins | Waldstein's Bellflower | Campanulaceae |
| Campanula wanneri | Glockenblume Wanners | Wanner's Bellflower | Campanulaceae |
| Campanula willkommii | Glockenblume Wilkomms | Willkomm's Bellflower | Campanulaceae |
| Campanula witasekiana | Glockenblume Witaseks | Witasek's Bellflower | Campanulaceae |
| Campanula zoysii | Glockenblume Karawanken | Crimped Bellflower | Campanulaceae |
| Camphorosma annua | Kampferkraut Einjähriges | Annual Camphorherb | Chenopodiaceae |
| Camphorosma monspeliaca | Kampferkraut Motpellier | Montpellier Camphorherb | Chenopodiaceae |
| Campsis radicans | Klettertrompete Amerikanische | Trumpet Creeper | Bignoniacaea |
| Campsis x tagliabuana | Klettertrompete Hybrid | Trumpet Vine | Bignoniacaea |
| Canna indica | Blumenrohr Indisches | Indian Shot | Cannaceae |
| Cannabis indica | Hanf Indischer | Indian Hemp | Cannabaceae |
| Cannabis sativa | Hanf Gewöhnlicher | Common Hemp | Cannabaceae |
| Capparis spinosa | Kapernstrauch Dorniger | Caperbush | Capparaceae |
| Caprobrotus acinaciformis | Hottentottenfeige Rote | Red Hottentot Fig | Aizoaceae |
| Caprobrotus chilensis | Hottentottenfeige Chilenische | Chilean Hottentot Fig | Aizoaceae |
| Caprobrotus edulis | Hottentottenfeige Gelbe | Edible Hottentot Fig | Aizoaceae |
| Capsicum annuum | Paprika | Bell Pepper | Solanaceae |
| Capsicum frutescens | Chili- Strauch | Tabasco Pepper | Solanaceae |
| Caragana arborescens | Erbsenstrauch Gewöhnlicher | Siberian Peatree | Asteracea |
| Caragana frutex | Erbsenstrauch Strauchiger | Russian Peatree | Asteracea |
| Caralluma europaea | Europäische Caralluma | European Caralluma | Apocynaceae |
| Caralluma munbyana | Munbys Caralluma | Munby's Caralluma | Apocynaceae |
| Cardiospermum halicacabum | Ballonrebe | Ballon Vine | Sapindaceae |
| Cardopatium corymbosum | Schirmsaflor Doldiger | Corymbose Distaff Thistle | Asteracea |
| Carduncellus caeruleus | Färberdistel Blaue | Blue Distaff Thistle | Asteracea |
| Carduncellus dianius | Färberdistel Montgo | Montgo Distaff Thistle | Asteracea |
| Carduncellus hispanicus | Färberdistel Spanische | Spanish Distaff Thistle | Asteracea |
| Carduncellus mitissimus | Färberdistel Milde | Mild Distaff Thistle | Asteracea |
| Carduncellus monspelliensium | Färberdistel Französische | Montpellier Distaff Thistle | Asteracea |
| Carduncellus pinnatus | Färberdistel Gefiederte | Stemless Distaff Thistle | Asteracea |
| Carduus acanthoides | Distel Weg | Welted Thistle | Asteracea |
| Carduus crispus | Distel Krause | Welted Thistle | Asteracea |
| Carduus defloratus | Distel Berg | Alpine Thistle | Asteracea |
| Carduus euboicus | Distel Euböa | Evvian Thistle | Asteracea |
| Carduus nutans | Distel Nickende | Nodding Thistle | Asteracea |
| Carduus personata | Distel Kletten | Great Marsh Thistle | Asteracea |
| Carduus pycnocephalus | Distel Knäuelköpfige | Italian Thistle | Asteracea |
| Carduus tenuiflorus | Distel Schmalköpfige | Winged Plumeless Thistle | Asteracea |
| Carduus x polyacanthus | Distel Vielstachelige | Stange's Thistle | Asteracea |