Barberry bushes come with and without thorns. It’s better to look than to squeeze a branch to find out if there are thorns.
The very first time I went down a hill on a sled, I ran right into a large Barberry bush. It had thorns. The next time I went down a hill on a sled, I knew how to steer.
I found some pictures of these bushes.
The next three pictures are from Nature Hills.