Answer: The easiest way to identify a tree is by its flowers, closely followed by the shape of the canopy, leaf structure and bark. I can't identify your tree by the description in your question, but I can guide you in the right direction. Here's a website with descriptions and sketches of dozens of trees commonly grown in South Carolina. http://www.clemson.edu/extfor/publications/bul117/bul117.pdf
Hope it's a helpful site and that you can identify the tree based upon its content.
Best wishes with your new landscape!
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