It looks as if you've got a thistle thistle there. Are the flowers purple or yellow?
That would be way too spikey for my bun but he's a bit nesh.
Mind there can be some right vicious spikey sow thistles, as I found to my.
I saw lots of seeds wafting in on a Westerly breeze, & set off to find where they'd come from. I found the patch alright but they were as vicious as an ordinary thistle, no good for MY bun.
The thistle has no flowers, I think the bigger the thistle had less spikes (as they seem VERY spikey) but was a small one. Not going to give that, will look for a few more.