Compare the Parry Lousewort and the Bracted Lousewort (two last pics). They differ slightly in size and the shape of the flower beak, and in the stems and leaves. Normal people would likely think they are the same flower, but they look very different to me!
“Normal people”? They look the same to me! I think that makes you “abnormal”!
I think they look very different – distant cousins.