Leaves are alternate, simple, 3-8", lobed with a flat tip (truncated). Very easy to identify this tree from the leaf, nothing else like it.
Stems are stout, greenish-brown. They have very distinct buds, stipules (see below) and stipular scars. The buds are large, valvate, looking like a duck bill. The stipules are leaf like growths that emerge at the base of the leaves and soon fall off leaving a scar on the stem.
Misidentification:
look for the truncated leaves.
Location:
Scotts Valley:
MacDorsa Park, actually in the parking lot strip on the Olive Center Drive entrance.
Santa Cruz
215 Dellview (Morrissey west) is very large
508 Olive St.
Watsonville
Corner of Green Valley and Main St in the parking lots.