C. maxima

C. maxima may refer to:

• Canna maxima, a perennial plant
• Cattleya maxima, a plant with a yellow stripe on its flower lip
• Cecropia maxima, a plant endemic to Ecuador
• Chrysoglossa maxima, a Central American moth
• Citrus maxima, a plant native to Asia
• Collocalia maxima, a cave-nesting swift
• Coracina maxima, a bird endemic to Australia
• Corylus maxima, an Old World hazel
• Crocomela maxima, a Bolivian moth
• Cucurbita maxima, a squash native to South America