Answer: Without a detailed description of the foliage, bark and branch pattern, I can only guess the identity of the tree. Here are two possible candidates:
Mimosa or hardy silktree (Albizia julibrissin). This tree has multiple trunks or spreading branches with a flat to rounded top. Fairly fast growing. Often reaches 30 feet. Foliage is very fine, graceful; the tree open and airy. Flowers are clusters of dainty pink puffs that appear in late summer. Seed pods are long and woody.
Japanese Pagodatree (Sophora japonica)
Flowers in mid- to late-summer; produces long, tubular bean-like fruits with swollen sections for each seed.
If neither is correct, try taking a leaf sample to a local nursery. Perhaps they can identify the tree for you. Best wishes in your search!
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