According to the King County website, English holly or European holly is often grown for ornaments but some have escaped to wild forest areas. I do not know which category this specific holly that I snapped at UW farm belongs to.
The leaves are very sharp and thorny, which might make it look pretty but you do definitely do not want to touch it. I accidentally touched it when it was covered in snow and bled. Hollies are often depicted with red berries that remind of Christmas time, unfortunately I did not find berries on the one at UW farm.