My friend gave me a root cutting of a tree. (He said he thought it had the word 'Hawaiian' in the name). It is an extremely fast growing tree with somewhat hollow branches and GIANT leaves that resemble HUGE sycamore leaves that are very smooth and silky. By huge leaves, I mean bigger than a car's steering wheel! It apparently flowers, but, it would be a fall/winter bloomer and the frost/freeze killed off the branched clusters of unopened buds. The tree he gave me a cutting from had pods that were thumb-sized dark seed pods but he said they rarely sprout.

This plant grows fast, about 20 feet in the spring alone.

Any ideas what it may be? It seems to grow well in southern Georgia/ North Florida.