Isn't this Baptisia? False/wild indigo.

No, I don't think so. Baptisia has a different habit. Mine looks like asparagus. It may be more clear from the attached photo.

I think this cultivar is just different than the ones you are familiar with. I'm pretty confident that's Baptisia.

I agree with Baptisia. Perhaps one of the hybrids like Purple Smoke which has darker stems like the one in this photo.

Yes, I think you guys are correct. I was thrown off by the bare stems and sparse leaves and tight flower buds . . . but as the flower buds are maturing they are growing into what Baptisia flowers will look like, and the three-petal leaf sets are certainly Baptisia-like! It is weird that there is so little foliage, though --- and that I have absolutely no recollection of buying this plant!!! Thank you!