E. californica

E. californica may refer to:
 * Encelia californica, the California brittlebush, a flowering plant species native to southern California and Baja California
 * Ephedra californica, the California jointfir, California ephedra, desert tea or cañatillo, a plant species native to southern California, Arizona and Baja California
 * Eschscholzia californica, the California poppy, a plant species native to the western United States and in Mexico