Fluffy seed

Fluffy seed

Observation - Fluffy seed - UK and Ireland. Description: The footpath and surrounding vegetation were carpeted in this white fluffy seed. Looks a bit like that of a dandelion, but without the actual seed. I'm doubtful that dandelions or related plants could produce this much seed though so I'm thinking this is

The footpath and surrounding vegetation were carpeted in this white fluffy seed. Looks a bit like that of a dandelion, but without the actual seed. I'm doubtful that dandelions or related plants could produce this much seed though so I'm thinking this is more likely to be from a tree of some description. My best guess is a poplar, but maybe willow. Any ideas?