This is a neighbor's tree and I'm going crazy trying to identify it. I've looked up trees on many lists and can't figure out what it is for sure - my best guess is a poplar of some type.

It is a deciduous tree with yellow catkins and in the fall it turns a lovely orange. I've seen a couple as street trees, but overall it seems to be quite rare here in San Jose, CA.

The leaves are quite distinctive and always look like the one pictured.

Many thanks for your help!