f33r

[Oocephalus]

I would indeed translate Eulsatkraut as "owl seed herb". However, Pritzel says that "the other terms are from the used parts ... 5) oil (El, Eul, Huel, Lyne)". He also lists Oelsaat (oil seed) as a Low German name, although his list appears to mix names for the plant itself, its milky sap, oil, seeds etc. The ö sound is written as eu in Dutch (as in French) and this may also have been used in Low German. So I guess the name originally had nothing to do with owls, although it may have been interpreted that way.