Judique Flyer Trail - ??Russian Olive

I believe this is either Russian Olive or Autumn Olive, a once recommended planting for wild-life birds etc but now is treated as an invasive species - there were many of these along the trail- check it out in the following link:

http://na.fs.fed.us/spfo/invasiveplants/factsheets/pdf/autumn-and-russian-olive.pdf