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Rock Elm

Ulmus thomasii

The rock elm The winter form of a rock elm Leaf of rock elm
The rock elm
G. Lumis
The winter form of a rock elm
G. Lumis
Leaf of rock elm
G. Lumis

Height  25m (80')

Leaves 5-10cm (2-4")

The rock elm, also known as the cork elm due to corky ridges on branches, is probably the least typical in form.  Rather than branching out into large co-dominant limbs, the trunk remains distinct almost to the top of the tree.  The crown is cylindrical in shape and can grow to approximately 25m in height.  A relatively rare tree, it occurs mainly in the US Midwest.  The leaves are 5-10 cm long and hairy on the underside.