[Wikipedia] Distibution, Native to: Elaeagnus angustifolia, commonly called Russian olive,[1] silver berry,[2] oleaster,[2] or wild olive,[2] is a species of Elaeagnus, native to western and central Asia, Iran, from southern Russia and Kazakhstan to Turkey, parts of Pakistan and parts of India.[3][better source needed] As of 2020, it is widely established in North America as an introduced species. (contributed by Mary Ann Machi)

[Wikipedia] Invasive behavior: The species was introduced into North America by the late 19th century, and was both planted and spread through the consumption of its fruits (which seldom ripen in England),[15] by birds, which disperse the seeds.[11] Russian olive is considered to be an invasive species in many places in the United States because it thrives on poor soil, has high seedling survival rates, matures in a few years, and out-competes the native vegetation. It often invades riparian habitats where the canopy of cottonwood trees has died. Its quick-spreading root system can make it pest-like. (contributed by Mary Ann Machi)