C. aurea

C. aurea may refer to:
 * Calamagrostis aurea, a grass species found only in Ecuador
 * Calpurnia aurea, a tree species found in Southern Africa
 * Calytrix aurea, a shrub species endemic to the south-west of Western Australia
 * Canalispira aurea, a very small sea snail species
 * Carex aurea, the golden sedge, a plant species native to much of North America
 * Cattleya aurea, the golden yellow cattleya, an orchid species
 * Chysis aurea, an orchid species
 * Clathrina aurea, a sponge species
 * Corydalis aurea, the scrambled eggs, golden corydalis, golden smoke, a medicinal and poisonous plant species native to North America