C. crispa may refer to:
Chloraea crispa, an orchid species in the genus Chloraea Clematis crispa, a climbing plant species in the genus Clematis Clethra crispa, a plant species in the genus Clethra native to northwestern South America Cousinia crispa, a sunflower species in the genus Cousinia Cryptogramma crispa, a fern species Cyanea crispa, a plant species endemic to Hawaii Cyathula crispa, a flowering plant species in the genus Cyathula
See also Crispa (disambiguation)