Pictures taken April 2016; located in my back yard, among several other species planted by previous homeowner; partial shade, receives 2-4 hrs afternoon sunlight daily; primary image is full view, detail #1 is close-up of stem, detail #2 is close-up of foliage
Hi Stephen,
This appears to be a Black locust tree, Robinia pseudoacacia.
Sincerely,
Dr. Steven Hill, Botanist, SCNPS