C. aurantiaca

C. aurantiaca may refer to:


 * Caladenia aurantiaca, an orchidoid orchid
 * Callosamia aurantiaca, an American moth
 * Caloplaca aurantiaca, a lichen found in the United States
 * Caloptilia aurantiaca, a leaf miner
 * Canna aurantiaca, a garden plant
 * Caragana aurantiaca, a flowering plant
 * Catocala aurantiaca, an owlet moth
 * Cattleya aurantiaca, an epiphytic orchid
 * Chrysomphalina aurantiaca, a gilled mushroom
 * Coccinia aurantiaca, a scarlet gourd
 * Coenyra aurantiaca, a brush-footed butterfly
 * Cronia aurantiaca, a sea snail
 * Curcuma aurantiaca, a flowering plant