Originally Posted by
yerenI've seen a lot of those weedy (juvenile
Morus Alba?) saplings in Texas. Note - that is where a lot of these queries pop up (including the OP here)! Hard to know for sure though - as I've never seen one grown big enough yet to absolutely verify? Maybe the OP can report back on what kind of fruit his neighbor's bears?
And if it is an invasive
Morus alba, encourage him to chop & drop it!(Although there is no "possibly" hybridizing - as it clearly DOES!
Also as a sidenote - figs, mulberries, osage oranges, and a number of
other tropical trees actually all belong to the same
Moraceae family. Hence, they often do show a lot of similarities (like leaf shapes, etc).