Hhb bark is way different than cork or winged elm. Would be hard to mistake the two. Also hhb limbs grow out perpendicular to the tree, like a T. Elm grows like a Y.
Elms, hickorys, oaks species seem to intermingle, traits mix like shades of grey, really hard to be precise on the id, or draw conclusions about it's likely working properties based upon these traits. I find more variation from one specimen to the next anyway, but still look for winged limbs and small leaves when selecting an elm. Best one I ever cut was a leaner and the tension side good bow wood, dense, but suffers the same tendancy to take and hold moisture as other elms. So unless you (in my climate) are able to keep it dry enough, where performance will rival any bow wood, performance when moisture heavy was below par in my experience despite it's high density.
