Let me clarify - it was there (alebeit in smaller quantities) at the
end of winter, and I haven't introduced any plants into the pond yet -
just trying to get a handle on what I have going on. If Bog Bean
wouldn't make it through a Cleveland Winter, then this is not bog bean.
Anyone have another guess? Also, if I remove it completely, what are
some suggestions for replacements - something that would give
significant cover and live through a Cleveland winter - Zone 5 (and
would it be too much to have it look nice too?).