B. californica

B. californica may refer to:


 * Banksula californica, a harvestman species
 * Bolandra californica, the Sierra bolandra or Sierra false coolwort, a flowering plant species endemic to the High Sierra Nevada of California
 * Brickellia californica, the California brickellbush, a flowering plant species native to western North America from Baja California to Idaho to Oklahoma
 * Brodiaea californica, the California brodiaea, a plant species native to California and Oregon

Synonyms

 * Bassia californica, a synonym for Kochia californica, the rusty molly, a flowering plant species native to the valleys and deserts of southeastern California
 * Bipolaris californica, a synonym for Cochliobolus sativus, a fungus species which is the causal agent of a wide variety of cereal diseases
 * Bombycilaena californica, a synonym for Micropus californicus, the slender cottonweed, a plant species