Thank you so much for your kind com,ments about my web site.
The Russian-olive or "Elaeagnus angustifolia L." was first cultivated in Germany in 1736, and it was introduced into the U.S. in the late 1800s. It is a small, usually thorny shrub or small tree that can grow to 30 feet in height.
It was planted as an ornamental tree , and until recently, the U.S. Soil Conservation Service recommended Russian- olive for wildlife planting and windbreaks. Russian-olive outcompetes native vegetation, interferes with natural plant succession and nutrient cycling, and water reserves. Because Russian-olive is capable of fixing nitrogen in its roots, it can grow on bare, mineral substrates and can dominate riparian vegetation where overstory cottonwoods have died. Although Russian-olive provides a plentiful source of edible fruits for birds, ecologists have found that bird species richness is actually higher in riparian areas dominated by native vegetation. It is now considered to be a pest tree in many US states although it is still very popular among gardeners (especially in Arizona) for its ornamental beauty.
I have never tasted the fruit of this tree and I have never encountered any reference to its fruit as being edible.
I hope that this is of assistance.