Planera aquatica (Water Elm) grows to 40ft; elm-like leaves; uncommon tree is the only species of its genus. Distinctive fruit is 1/2" long with warty projections.
I was so tickled to find this tree available online. In my part of Texas, Water Elm have become increasingly rare. I never expected anyone to be growing it commercially. What a delight to find it online, and be able to order one for a shady wet area in our yard. The tree arrived in excellent condition and is thriving in its new home.