D. californica

D. californica may refer to:
 * Danthonia californica, the California oatgrass, a grass species native to two separate regions of the Americas, western North America from California to Saskatchewan and Chile
 * Darlingtonia californica, the California pitcher plant, cobra lily or cobra plant, a carnivorous plant species native to Northern California and Oregon
 * Descurainia californica, the Sierra tansymustard, a flowering plant species native from California to Wyoming
 * Draba californica, the California draba, a flowering plant species found in California and Nevada

Synonyms

 * Dryobota californica, a synonym for Egira hiemalis, a moth species found from British Columbia south to California