| Name? | Group? | Type? | Source? | Images? |
| 'Coronatum' | Indian | evg |
IRRC04 |
| 'Coronatum' | Smith | evg |
IRRC04 |
| 'Corot' | Solent | dec |
IRRC04 |
| 'Corporal' | Girard | evg |
IRRC04 |
| 'Correcta' | Indian | evg |
IRRC04 |
| 'Corrine Murrah' see 'Corinne Murrah' | Back Acres | evg |
IRRC04 |
| 'Corringe' | Exbury | dec |
Galle85 |
| 'Corroboree' | Aus. & NZ | evg |
Galle85 |
| 'Corry' (T21-9) | Robin Hill | evg |
Galle85 |
| 'Corsage' (16G) | Gable | evg |
Galle85 |
| 'Corsair' | Glenn Dale | evg |
Galle85 |
| 'Corston's Yellow' | Knap Hill | dec |
Galle85 |
| 'Coruscans' | Indian | evg |
IRRC04 |
| 'Coruscum' | Ghent | dec |
IRRC04 |
| 'Corydon' | Glenn Dale | evg | Galle85 | b |
| coryi see viscosum | Species | dec |
Galle85 |
| Cote Group | Ghent | dec |
IRRC04 |
| 'Cote var. Tower Beauty' see 'Tower Beauty' | Ghent | dec |
Galle87 |
| 'Cote var. Tower Dainty' see 'Tower Dainty' | Ghent | dec |
Galle87 |
| 'Cottage Garden' ? | | evg |
IRRC04 |
| 'Cottage Maid' | Ghent | dec |
Galle87 |
| 'Cottage Ruffles' | Belgian Indian | evg |
Galle85 |
| 'Cotton Candy' (HS 84-16-75) | Holly Springs | evg |
Vines90 |
| 'Cotton Candy' | Weston | dec |
Galle85 |
| 'Cottontail' | Greenwood | evg |
Galle85 |
| 'Cotton Top' | Greenwood | evg |
Galle85 |
| 'Couleur de Paille' | | unk |
IRRC04 |
| 'Couleur Nankin' | | evg |
IRRC04 |
| 'Count de Kerkov' see 'Comte Charles de Kerchove de Denterghem' | Indian | evg |
IRRC04 |
| 'Countess of Donoughmore' | Mollis | dec |
Galle87 |
| 'Countess of Flanders' ('Comtesse de Flandre') | Aus. & NZ | evg |
Galle85 |
| 'Countess of Stamford' | Indian | evg |
IRRC04 |
| 'Country Cousin' | Aromi | dec | Azalean25:2 | b |
| 'Country Girl' | Yavorsky | evg |
Steele03 |
| 'Count William de Deauz Ponts' | Marlbank Farm | evg |
Galle85 |
| 'Couronne Imperiale' | Ghent | dec |
IRRC04 |
| 'Courtship' | Aromi | dec | Azalean25:2 | b |
| 'Cover Girl' | Cornell | evg |
Galle85 |
| 'Cover Girl' | Greenwood | evg |
Galle85 |
| 'Crabapple' | Coolidge | evg |
Galle85 |
| 'Cramoisie' ? | | unk |
IRRC04 |
| 'Cramoisie Flamboyant' ('Cramoize Flamboyanti', 'Cramoisie Flamboyante') | Ghent | dec |
IRRC04 |
| 'Cranford' ('Crawford') | Glenn Dale | evg | Galle87 | b |
| 'Crasso' | Eden | evg |
Steele03 |
| 'Crawford' see 'Cranford' | Glenn Dale | evg |
Galle85 |
| 'Crazy Quilt' | Occidentale | dec |
Galle85 |
| 'Cream Cup' | Glenn Dale | evg |
Galle85 |
| 'Cream Perfection' see 'Shin Seikai' | Kurume | evg |
Kehr01 |
| 'Cream Puff' | Leach | dec |
Galle85 |
| 'Cream Ruffles' | Kehr | evg | Steele03 | p, b |
| 'Cream Ruffles Tetraploid #6' | Kehr | evg |
Steele03 |
| 'Creamy Reflection' | Indian | evg |
IRRC04 |
| 'Creeping Jo' | Tolstead | evg |
IRRC04 |
| 'Cremona' | Glenn Dale | evg | Galle85 | b |
| 'Creole Love Song' | Carlson | dec |
IRRC04 |
| 'Crepello' | Knap Hill | dec |
IRRC04 |
| 'Crepuscule' | Kurume | evg |
Galle85 |
| 'Crescendo' | Back Acres | evg |
Galle85 |
| 'Crescent City Double' ('SM-28-2') | Occidentale | dec |
Galle85 |
| 'Crescent City Gold' ('SM-30') | Occidentale | dec |
Galle85 |
| 'Crescent City Pink' | Southern Indian | evg |
Galle85 |
| 'Crestwood' | Marlbank Farm | evg |
Galle85 |
| 'Crimson' see 'Girard's Crimson' | Girard | evg |
IRRC04 |
| 'Crimson Crest' | Greenwood | evg |
Galle85 |
| 'Crimson Glory' ('Natalie Coe Vifetti', 'Natalie Coe Vitetti') | Rutherford | evg |
IRRC04 |
| 'Crimson King' | Bobbink-Atkins | evg |
Galle85 |
| 'Crimson King' | Ghent | dec |
Galle85 |
| 'Crimson Petrick' | Indian | evg |
IRRC04 |
| 'Crimson Queen' (HS 81-32) | Holly Springs | evg |
Vines90 |
| 'Crimson Rose' | Aus. & NZ | evg |
Galle85 |
| 'Crimson Speciosum' | Indian | evg |
IRRC04 |
| 'Crimson Tide' | Boike | evg |
IRRC04 |
| 'Crimson Tide' ('Girard's Crimson Tide') | Girard | dec |
IRRC04 |
| 'Crinkle Cut' | Aus. & NZ | evg |
Galle85 |
| 'Crinkle Cut' | Southern Indian | evg |
Galle85 |
| 'Crinkles' | Loblolly Bay | evg |
Galle85 |
| 'Crinoline' | Exbury | dec |
Galle85 |
| 'Crinoline' | Glenn Dale | evg | Galle85 | b |
| 'Crinoline Pink' | Aromi | evg |
Azalean25:2 |
| 'Crispatum Elegans' | Indian | evg |
IRRC04 |
| 'Crispiflorum' | Indicum | evg |
Galle85 |
| 'Crispiflorum Mauve' | Indicum | evg |
Galle85 |
| 'Crispiflorum Orange' | Indicum | evg |
Galle85 |
| 'Crispiflorum Pink' | Indicum | evg |
Galle85 |
| 'Crispiflorum Roseum' | Indian | evg |
IRRC04 |
| 'Crispum'1 | Ghent | dec |
IRRC04 |
| 'Crispum'2 | Ghent | dec |
IRRC04 |
| 'Cristallinum' see 'Crystallinum' | Indian | evg |
IRRC04 |
| 'Cristatum' | Ghent | dec |
IRRC04 |
| 'Criterion' | Ghent | dec |
IRRC04 |
| 'Criterion' | Indian | evg |
IRRC04 |
| 'Criterion' | Southern Indian | evg |
Galle85 |
| 'Crocea Tricolor' see 'Croceum Tricolor' | Ghent | dec |
Galle87 |
| 'Croceum' | | dec |
IRRC04 |
| 'Croceum Distinctum' | Ghent | dec |
IRRC04 |
| 'Croceum Splendidum' | Ghent | dec |
IRRC04 |
| 'Croceum Superbum' | Ghent | dec |
IRRC04 |
| 'Croceum Tricolor' ('Crocea Tricolor') | Ghent | dec |
IRRC04 |
| 'Croemina' ('Cromenia') | Southern Indian | evg |
Galle85 |
| 'Croesus' ('Gleam') | Solent | dec |
IRRC04 |
| 'Crofton' | White | evg |
AzAcres84 |
| 'Cromenia' see 'Croemina' | Indian | evg |
IRRC04 |
| 'Crossroad' | Hershey | evg |
Galle85 |
| 'Crosswater Red' | Millais | dec |
IRRC04 |
| 'Crouxii' | | azd |
IRRC04 |
| 'Crown Jewel' | Ferndown | evg |
Galle85 |
| 'Crown Jewel' see 'Arctic Flame' | Herbert | evg |
IRRC04 |
| 'Crown Supreme' | Solent | dec |
IRRC04 |
| 'Cruentum' | Ghent | dec |
IRRC04 |
| 'Cruentum Lucidum' | Indian | evg |
IRRC04 |
| 'Crusader' | Glenn Dale | evg | Galle85 | b |
| 'Cryptopetalum' ('Kin-shibe', 'Kin-shide') ? | Kaempferi | evg |
IRRC04 |
| 'Crystal' | Greenwood | evg |
Galle85 |
| 'Crystallinum' ('Cristallinum') | Indian | evg |
IRRC04 |
| 'C. Sanders' | Aus. & NZ | evg |
Galle85 |
| 'Csardas' | Hachmann | dec |
IRRC04 |
| 'Cuckoo' ('Mephistopheles') | Ingram | evg |
IRRC04 |
| 'Cullowhee' | Calendulaceum | dec |
Galle87 |
| Cumberland Azalea see cumberlandense | Species | dec |
Galle85 |
| cumberlandense (bakeri) | Species | dec | Galle85 | p, p, s |
| 'Cumberland Fire' | Schild | dec | Schild04 | p, b |
| 'Cumberland Gold' | Schild | dec | Schild04 | s, b, b |
| 'Cumulatum' | Ghent | dec |
IRRC04 |
| 'Cunigunde Emmel' | Indian | evg |
IRRC04 |
| 'Cunninghamii' | | dec |
IRRC04 |
| 'Cunninghamii' | Indian | evg |
IRRC04 |
| 'Cupid' | Glenn Dale | evg |
Galle85 |
| 'Cupide' | | evg |
IRRC04 |
| 'Cupidon' | Indian | evg |
IRRC04 |
| 'Cuprea Ardens' see 'Cupreum Ardens' | Ghent | dec |
Galle85 |
| 'Cuprea Grandiflora' see 'Cupreum Grandiflorum' | Ghent | dec |
Galle87 |
| 'Cuprea Puchella' see 'Cupreum Pulchellum' | Ghent | dec |
Galle85 |
| 'Cuprea Splendens' see 'Cupreum Splendens' | Ghent | dec |
Galle87 |
| 'Cupreum' | Ghent | dec |
IRRC04 |
| 'Cupreum Album' | Ghent | dec |
IRRC04 |
| 'Cupreum Amabile' | | dec |
IRRC04 |
| 'Cupreum Ardens' ('Cuprea Ardens') | Ghent | dec |
IRRC04 |
| 'Cupreum Aurantium' | Ghent | dec |
IRRC04 |
| 'Cupreum Aurantium Novum' | Ghent | dec |
IRRC04 |
| 'Cupreum Coccineum' | | dec |
IRRC04 |
| 'Cupreum Elegans' | | azd |
IRRC04 |
| 'Cupreum Elegans' | Ghent | dec |
IRRC04 |
| 'Cupreum Elegans' | Indian | evg |
IRRC04 |
| 'Cupreum Eximium' | Ghent | dec |
IRRC04 |
| 'Cupreum Eximium Novum' | Ghent | dec |
IRRC04 |
| 'Cupreum Fulgens' | Ghent | dec |
IRRC04 |
| 'Cupreum Globosum' | | dec |
IRRC04 |
| 'Cupreum Grandiflorum' ('Cuprea Grandiflora') | Ghent | dec |
IRRC04 |
| 'Cupreum Grandiflorum Novum' | Ghent | dec |
IRRC04 |
| 'Cupreum Maximum' | Ghent | dec |
IRRC04 |
| 'Cupreum Morteri' | Ghent | dec |
IRRC04 |
| 'Cupreum Plenum' | Indian | evg |
IRRC04 |
| 'Cupreum Pulchellum' ('Cuprea Pulchella') | Ghent | dec |
IRRC04 |
| 'Cupreum Roseum' | Ghent | dec |
IRRC04 |
| 'Cupreum Splendens' ('Cuprea Splendens') | Ghent | dec |
IRRC04 |
| 'Cupreum Splendens' ('Cuprea Splendens') | Indian | evg |
IRRC04 |
| 'Cupreum Splendentissimum' | Ghent | dec |
IRRC04 |
| 'Cupreum Superbum' | Ghent | dec |
IRRC04 |
| 'Cupreum Violaceum' | Ghent | dec |
IRRC04 |
| 'Cuprinum' | Ghent | dec |
IRRC04 |
| 'Currahee' | Calendulaceum | dec |
Transplant93 |
| 'Curtain Call' (HS 85-64-01) | Holly Springs | evg |
Vines90 |
| 'Custom White' | Girard | evg |
Galle85 |
| 'C. Vuylsteke' see 'Charles Vuylsteke' | Mollis | dec |
IRRC04 |
| 'Cygnet' | Glenn Dale | evg | Galle85 | b |
| 'Cylava' | Czechoslovakian | evg |
Galle85 |
| 'Cymodocee' | Ghent | dec |
Galle85 |
| 'Cynthia Ann' | KH-Peters | dec |
Galle85 |
| 'Cyoten' | Satsuki | evg |
IRRC04 |
| 'Cytherea' | Glenn Dale | evg |
Galle85 |
| 'Czar Alexander III' | Indian | evg |
IRRC04 |
| D5G | Gable | evg |
Tingle57 |
| 'Dageraad' | Indian | evg |
IRRC04 |
| 'Dagmar' | Herrman | evg |
IRRC04 |
| 'Dagmar' | Kavka | evg |
Galle87 |
| 'Dagonet' see 'Nicolaas Beets' | Mollis | dec |
IRRC04 |
| 'Dai-dan' | Tsutsuji | evg |
IRRC04 |
| 'Daigokuden' | Satsuki | evg |
Galle85 |
| 'Daikagura' | | evg |
IRRC04 |
| 'Daiki' | Indian | evg |
IRRC04 |
| 'Daikinboshi' | Satsuki | evg |
SatDict97 |
| 'Daiko-no-hikari' | Satsuki | evg |
SatDict83 |
| 'Daimio' = 'Mikado' ?1 | Kaempferi | evg |
IRRC04 |
| 'Daimyo' = 'Mikado' ?1 | Kaempferi | evg |
Galle85 |
| 'Dainanko' | Satsuki | evg |
Galle85 |
| 'Dainty' | Bobbink-Atkins | evg |
Galle85 |
| 'Dainty' see 'Iro-hayama' | Kurume | evg |
Galle85 |
| 'Dainty' | Occidentale | dec |
Galle85 |
| 'Dainty Angel' | McDonald | evg |
McDonald05 |
| 'Dainty Bess' | Kurume | evg |
IRRC04 |
| 'Dainty Danny' | Parmenter | evg |
IRRC04 |
| 'Dainty Lady' | Loblolly Bay | evg |
Galle85 |
| 'Dainty Rose' | Beltsville Dwarf | evg |
Galle85 |
| 'Dairymaid' | Knap Hill | dec |
Galle87 |
| 'Daiseiko' | Satsuki | evg |
Galle85 |
| 'Daisetsuzan' | Satsuki | evg | Galle85 | b |
| 'Daishihaku' | Satsuki | evg |
SatDict97 |
| 'Daishohai' | Satsuki | evg |
SatDict97 |
| 'Daishuhai' ('Taishuhai') | Satsuki | evg |
Galle85 |
| 'Daisy Bell's' | Indian | evg |
IRRC04 |
| 'Dakon' | Crown Estate | evg |
IRRC04 |
| 'Dalfstonii' | Indian | evg |
IRRC04 |
| 'Dalliance' | Solent | dec |
IRRC04 |
| 'Dalwood' | Bawden | evg |
IRRC04 |
| 'Damaris' | Glenn Dale | evg | Galle85 | b |
| 'Damask' | Glenn Dale | evg | Galle85 | b |
| 'Damask Rose #2' | Mucronatum | evg |
Frazer74 |
| 'Damask Rose' | Mucronatum | evg |
Galle85 |
| 'Dame Abelaine' | Indian | evg |
IRRC04 |
| 'Dame Blanche' ('Dame Melanie White', 'Dame Melanie Alba') | Belgian Indian | evg |
Galle85 |
| 'Dame Lavender' see 'Omoine' | Kurume | evg |
Galle85 |
| 'Dame Margot Fonteyn' | Aus. & NZ | evg |
Galle85 |
| 'Dame Mathilde' | Indian | evg |
IRRC04 |
| 'Dame Melaine' see 'Dame Melanie' | Aus. & NZ | evg |
Galle85 |
| 'Dame Melanie' ('Dame Melaine', 'Melanie', 'Mistress Turner', 'Mrs. Turner') | Belgian Indian | evg |
Galle85 |
| 'Dame Melanie Alba' see 'Dame Blanche' | Belgian Indian | evg |
Galle85 |
| 'Dame Melanie Rubra' see 'Roi Leopold' | Belgian Indian | evg |
Galle85 |
| 'Dame Melanie Saumona' ('Melanie Saumona') | Belgian Indian | evg |
Galle85 |
| 'Dame Melanie White' see 'Dame Blanche' | Belgian Indian | evg |
Galle85 |
| 'Damino' = 'Mikado' ?1 | Kaempferi | evg |
Galle85 |
| 'Damio' = 'Mikado' ?1 | Kaempferi | evg |
IRRC04 |
| 'Damozel' | Glenn Dale | evg | Galle85 | b |
| 'Dan Bush' | Pride | evg |
Galle85 |
| 'Dancer' see 'Ballerina' | Aus. & NZ | evg |
Galle85 |
| 'Dancing Butterfly' | Eden | evg |
Galle85 |
| 'Dancing Doll' see 'Nuccio's Dancing Doll' | Aus. & NZ | evg |
Galle85 |
| 'Dancing Rabbit' | Aromi | dec | Azalean25:2 | b |
| 'Dancing Waters' | Belgian Glenn Dale | evg |
Galle85 |
| 'Dandy' | Glenn Dale | evg |
Galle85 |
| 'Dandy' see 'Madame Bovary' | Solent | dec |
IRRC04 |
| 'Danger' | Knap Hill | dec |
IRRC04 |