San Francisco Bay Area Plant Encyclopedia
- Coryphantha delaetiana
- Coryphantha elephantidens
- Coryphantha ottonis
- Cotoneaster “Mooncreeper”
- Cotula “Big Yellow Moon”
- Cotula hispida
- Cotula lineariloba
- Cotula “Silver Mound”
- Cotyledon campanulata
- Cotyledon “Chalk Fingers”
- Cotyledon “Flavida”
- Cotyledon “Happy Young Lady”
- Cotyledon ladismithensis
- Cotyledon ladismithensis “Variegata”
- Cotyledon “Mr. Butterfield”
- Cotyledon orbiculata
- Cotyledon orbiculata “Higginsiae”
- Cotyledon orbiculata “Macrantha”
- Cotyledon orbiculata v. spuria
- Cotyledon orbiculata v. oblonga
- Cotyledon orbiculata “Winter Red”
- Cotyledon pendens
- Cotyledon “Silver Peak”
- Cotyledon “Silver Star”
- Cotyledon “Silver Storm”
- Cotyledon “Staghorn”
- Cotyledon tomentosa
- Cotyledon undulata
- Crassothonna sedifolia
- Crassula alba var. pervisepala