What plant or tree causes those dead dandelions in the air?

They are all over here (in Michigan) and it kinda reminds me of snow - right with 84 degrees :-) Well anyway - I was just wondering because I'm sure they are affecting the pollen count somehow. Anyone have any ideas as to what this plant/tree is?

What plant or tree causes those dead dandelions in the air?
cottonwood trees....that fluff is a cottonwood seed...hard to believe that little fuzzy thing carries all the info to build a big tree like a cottonwood....nature's wonders.
Reply:Larry's right.. thumbs up, Larry!
Reply:Yes, biker, you live by the BB it does that every year.
Reply:It's cottonwood trees (I corrected myself) %26amp; the only way to eliminate the mess is to have the tree(s) cut down if you have one in your own yard. What a nuisance those trees are, especially when one has a swimming pool. Yuk!!!
Reply:You must live down the street from me (in MI)...lol. We have those darn cottonwood seeds too. Even worse if you are the next door neighbor to one...and you have a pool (my in-laws have that scenario).

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