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