San Francisco Bay Area Plant Encyclopedia
- Crassula susannae
- Crassula swaziensis “Variegata”
- Crassula tabularis
- Crassula tetragona
- Crassula tetragona subs. connivens
- Crassula “Tom Thumb”
- Crassula “Undulata”
- Cremnosedum “Crocodile”
- Cremnosedum “Little Gem”
- Crossyne flava
- Croton “Gold Dust”
- Croton “Magnificent”
- Croton “Petra”
- Croton “Picasso”
- Cryptanthus “Absolute Zero”
- Cryptanthus “Black Mystic”
- Cryptanthus “Major”
- Cryptanthus “Minor”
- Cryptanthus “Pink Starlight”
- Cryptanthus “Ruby”
- Cryptanthus “Thriller”
- Cryptbergia “Red Burst”
- Ctenanthe burle-marxii
- Ctenanthe “Compact Star”
- Cumulopuntia boliviana
- Cumulopuntia tumida
- Cuphea “Bat Face”
- Cuphea cyanea
- Cuphea “David Verity”
- Cuphea “Lavender Lace”