Hello all!
My apologies for the belated response to this post. You know what? I DID broadcast some Eryungium seeds at one point. This could very well be what this is. Interesting. This is the second season it has appeared and no blooms. If this plant IS an Eryngium, I need to get it to a sunnier spot in the spring. I will mark this solved and I thank you all so much for your help as always.