Despite trying a quick Google, I'm still not sure whether this is a cattail or a bulrush. Whatever, it seems like the fluffy bits were once used for insulation and for treating sores.
Nothing much turned up on this morning's short and very windy walk, so I hope the fluff fits this week's natural world theme.
I've been unable to process on my Tablet so this has gone via my 'phone. Hopefully it will work properly tomorrow.
Many thanks to Pinkhairedlady for hosting.