Mill Race Trail
May have been planted.
I'm pretty sure this is a seedling of a common privet (Ligustrum vulgare). There's plenty of it planted on campus (and fruiting at the moment).
I forgot to look for or photograph the diagnostic velvety hairs on the young shoots.
Ligustrum vulgare (wild privet, also sometimes known as common privet or European privet), is a species of Ligustrum native to central and southern Europe, north Africa and southwestern Asia, from southern England and southwestern Sweden south to Morocco, and east to Poland and northwestern Iran.