M. californica

M. californica may refer to:
 * Malacothrix californica, the California desertdandelion, a flowering plant species native to California and Baja California
 * Melica californica, the California melic, a grass species native to Oregon and California
 * Metzgeria californica, a sea snail species
 * Minuartia californica, the California sandwort, a flowering plant species native to Oregon and California
 * Muhlenbergia californica, the California muhly, an uncommon grass species endemic to southern California
 * Myliobatis californica, the bat ray, a fish species found in the eastern Pacific Ocean, between the Oregon coast and the Gulf of California
 * Myrica californica, the California bayberry, California wax myrtle or Pacific wax, an evergreen shrub or small tree species native to the Pacific Ocean coast from Vancouver Island south to California