| Rating | Plant | Thumbnail |
| Apple 'C and O Winesap'
Malus x domestica | |
| Apple 'C'Huero Biz Bras'
Malus x domestica | |
| Apple 'C'Huero Ru Bienn'
Malus x domestica | |
| Apple 'Cain Red Delicious'
Malus x domestica | |
| Apple 'Caitlin'
Malus pumila
Additional info: (aka Stark Grandgala) | |
| White-Flowering Crabapple 'Callaway'
Malus | |
 | Redbud Crabapple 'Calocarpa'
Malus sieboldii
Hybridized by Arnold Arboretum |  |
| Apple 'Calville Blanc'
Malus x domestica |  |
| Apple 'Calville du Mont d'Or'
Malus x domestica | |
| Apple 'Calville Rouge d'Automne'
Malus x domestica |  |
| Apple 'Calvin'
Malus x domestica | |
| | Apple 'Cameo'
Malus x domestica
Additional info: (aka Carousel) |  |
| Apple 'Campfield'
Malus x domestica | |
| Apple 'Canada Red'
Malus x domestica
Additional info: (aka Nonsuch, Red Canada, Red Winter, Richfield Nonsuch, Steele's Red Winter, Steel's Red, Winter Nonsuch) | |
| Apple 'Canada Reinette'
Malus x domestica | |
| Flowering Crabapple 'Canary'
Malus |  |
| Weeping Crabapple 'Candied Apple'
Malus
Hybridized by James W. Zampini, 1977
Additional info: (PP4038; aka Weepcanzam) |  |
| Apple 'CandyCrisp'
Malus x domestica | |
| Sargent's Crabapple 'Candymint'
Malus sargentii
Hybridized by Simpson, 1987
Additional info: (PP6606, aka Candymint Sargent) |  |
| Apple 'Caney Fork Limbertwig'
Malus x domestica | |
| Apple 'Cannon Pearmain'
Malus x domestica
Additional info: (aka Alpian, Red Cannon, Green Cannon) | |
| Apple 'Cap of Liberty'
Malus x domestica | |
| Apple 'Captain Kidd'
Malus x domestica | |
| | Flowering Crabapple 'Cardinal'
Malus
Hybridized by Flemer, 1988
Additional info: (PP7147) |  |
| Apple 'Cardinal Von Galen'
Malus x domestica | |
| | Flowering Crabapple 'Cardinal's Robe'
Malus
Hybridized by Father John L. Fiala, 1970 |  |
| Apple 'Carlos Queen'
Malus x domestica | |
| Apple 'Carmeliter Reinette'
Malus x domestica |  |
| Apple 'Carolina Pippin'
Malus x domestica | |
| Apple 'Carolina Red June'
Malus x domestica
Additional info: (aka Blush June, Georgia June, Knight's Red June, Red Harvest, Jones June, Jones Early Harvest, Summer Red, Everbearing Red June, Red June, Red Juneating, Carolina Red, Improved Red June, Sheepnose Crab) | |
| Apple 'Carpentin'
Malus x domestica | |
| Apple 'Carroll'
Malus x domestica |  |
| Apple 'Carter Blue'
Malus x domestica | |
| Apple 'Carter's Blue'
Malus x domestica
Additional info: (aka Lady Fitzpatrick, Patton) | |
| Apple 'Cat's Head'
Malus x domestica | |
| Apple 'Cathead'
Malus x domestica
Additional info: (aka Catshead, Cathead Greening, Round Cathead) | |
| Flowering Crabapple 'Centennial'
Malus |  |
| | Flowering Crabapple 'Centurion'
Malus
Hybridized by Bob Simpson, Simpson Nursery Co., 1978 |  |
| Apple 'Cestra Belferkitaika'
Malus x domestica | |
| Apple 'Champagne Reinette'
Malus x domestica |  |
