Any chance you can take some digital pictures and post them?

I will try.

oilcan13

They can get pretty messy!

"The fruit is a two to four-valved capsule, green to reddish-brown, mature in mid summer, containing numerous minute light brown seeds surrounded by tufts of long, soft, white hairs which aid wind dispersal.^[1][3]"

^{From the link posted by Mssr Vader previously.}

^milo

What a mess, may I recomend a chainsaw...

Don't mind the others... Take the pods and put them in your garage. You'll feel much better in the morning.

So you are the one clogging up my A/C unit.

I literally had to comb this stuff off the outside of my A/C a couple of times a week far the past couple of weeks. It looked like it was growing fur. Seems to be a banner year for this fluff. Loks like its starting to slow down now though.

It's popular to plant aspen trees around here, but they give off the cotton too.

Poplar seeds are spread by wind. Maybe that's what they are.

Definetly cottonwood poplar fluff. Where I live at this time of the year the fluff from them is everywhere. Tough luck for people with alergies and annoying even for people without allergies.

I know what cottonwood seeds look like, these seem to be different, also I have a few dead leaves under the tree and they seem to be connected with the cotton fluff.

oilcan13

I have a couple and they are messy, for several hundred feet around the ground looks like it is covered by snow! They also grow incredably fast, the one is maybe 15 yrs old and is the size of a 50 yr old maple!

the white fluffy stuff is called "algodones".

Poplar trees are in the cottonwood family, so I'd say they are seeds.

Here are a couple pics.