Pear tree
In Iceland, picking berries in the fall is a regular tradition. Everyone heads up to the headlands and gathers basketfulls of the wild northern blue berries and moss berries (black, small, sour little guys) that spring up there every summer. Then everyone puts them in everything they can think of, or just eats the berries whole by the handful for several weeks. It is a lovely tradition. California's natural chaparral does not offer much in the way of wild fruit. Some cacti do bear fruit occasionally (though it is dangerous work to get them), and Native Americans knew how to make a paste out of the acorns that come from the California Oak, but it is toxic without proper preparation. But since the late 1800s, farmers have found a way to plant all sorts of non-indigenous species in California, and they have flourished. It turns out the first farmers who came out to Moraga, in the hills behind Berkeley, planted pear trees and walnut trees. Those trees, now over 150 years old, are s...