나무 26 ㅡ단풍나무인듯 아닌듯

this is called dissectum nigrum in a scientific name

this is so unfamiliar and awkward 

its name is cut-leaved Japanese maple  in English as well

in korean it's called sayeol danpug 

since the arrangement of this leave is more different than others 

exactly it has lots of main vein and thin shape