I spotted this in my hedges this past fall and lost out on the opportunity to dig it this spring. Years of getting whacked by the weed-whip and cut back haphazardly led to some interesting growth. The base is basically just a big ugly burl. The leaves are quite rough on both sides and I pinched off a leaf to see if the petiole was slippery. Not a whole lot of liquid but it did seem a bit slippery. Any ideas whether this is an elm? Thank you.