Elaeagnus umbellata is known as Japanese silverberry, umbellata oleaster, autumn olive, autumn elaeagnus, or spreading oleaster. The species is indigenous to eastern Asia and ranges from the Himalayas eastwards to Japan. Because it fixes atmospheric nitrogen in its roots, it often grows vigorously and competitively in infertile soils.
When ripe, the fruit is juicy and edible, and also makes a good dried fruit. Though the fruit are small, the tree bears them abundantly. They are tart-tasting, with chewable seeds. Their content of the carotenoid, Lycopene, is some seven to seventeen times higher than that of tomatoes.