Citrus sinensisSweet Orange. All cultivated Citrus are considered hybrids of a primeval species. Oranges spread from their origin someplace in China and seemed to have reached Europe via Portuguese merchants shortly after 1500. Oranges were a major crop in the Santa Clara Valley at the Southern end of San Francisco Bay until the 1960s. They are still grown as specimen trees through the Bay Area. Photographed in a private garden in Berkeley, CA.
