|Russian Olive (Elaeagnus angustifolia)||Autumn Olive (Elaeagnus umbellata)|
Now that the growing season is over, I think I've finally figured out how to tell the difference between Autumn Olive (Elaeagnus umbellata) and Russian Olive (E. angustifolia). Of course, it's pretty easy right now, since Russian Olive has yellow, mealy fruits, while Autumn Olive has juicy, red fruits (See photos above). If I hadn't recently found a Russian Olive right near campus, I'd probably still be wondering. I'll have to see if I can use the facts that Russian Olive has longer, thinner, more silvery leaves, as well as much more prominent thorns, to tell the two species apart next spring.