found in scituate, RI, leaves look sinillar to that of a maple, but its not a maple. has long thin thorns protruding outward from upper trunk and branches, similar to that of a barberry. this one is small, possibly naturally dwarfed, but ive once before seen one 6 or 7 ft tall.

Looks like a hawthorn - Crataegus sp.

Agree. Parsley Hawthorn

Cool thanks! im thinking it might make a good bonsai subject