That's the correct genus, not sure on the specific epithet or subspecies possibilities.
Butter and eggs is Linaria vulgaris which is a toadflax.
edit to add: (butter and eggs = Linaria vulgaris as I learned it. I do see now that some refer to Johnny tuck as butter n' eggs though. That's the problem with common names, there are usually a variety of common names referring to the same species or, as in this case, common names referring to different species.)
The problem with using common names is that they may be used with more than one plant. Your picture is a native plant. The 'other' butter and eggs, Linaria vulgaris, also called yellow toadflax is a noxious weed and is on the prohibited noxious weed list in Colorado.
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