Here is ours on Laurel. (Cut back but coming back.)
Foliage is alternate, pinnately compound, 12-18" long with 9-15 elliptical to lanceolate, serrated leaflets, dark green. Leaflets have an unequal base.
Flowers are male catkins, yellowish green, pendulous, female back some distance, small.
Fruit is large, 1-1/2" long, oblong, brown, thin shelled, dry drupe, usually in clusters of three.
Bark is thin when young, becoming fissured with age. Brown, mostly.
Twigs stout, thick, pubescent in the spring, large leaf scars, pointed buds, terminal large, and pubescent. Superposed bud (one bud on top of another, usually a flower bud, with the vegetative bud being the smaller one).
Misidentification
Black walnuts. Look at the fruit if possible, and the lateral buds are rounded on the walnut, pointed on these.
Location
Santa Cruz
302 Laurel Ave (removed) But trying to make a comeback
Corralitos
1800 Hamas Rd.