Lords and Ladies (Arum maculatum) are supposed to have a flower coming off the stem but i have never actually seen one. Every one i have seen have looked like the pictures here. I am sure they do actually exist and i have just never seen it. Other than that, i can't really find anything else interesting about this plant other than its physiology. Lords and Ladies can cause allergic reactions and small rodents tend to find it's spadix (this is the flower, wow i have learnt something today) very attractive.
Lords and Ladies seem to have many different local/wild names. Wild arum, Lords and Ladies, Jack in the Pulpit, Devils and Angels, Cows and Bulls, Cuckoo-Pint, Adam and Eve, Bobbins, Naked Boys, Starch-Root and Wake Robin.