Populus tremuloides Salicaceae

Devils Tower National Monument, Crook County, Wyoming 6 October 2018.

Devils Tower National Monument, Crook County, Wyoming 6 October 2018.

Seeds with attached hairs forming mat along road. Kalkaska County, Michigan. 17 May 2001.

With Pinus ponderosa. Custer State Forest, Custer County, South Dakota 4 October 2018.43°49'4.60" N 103°28'8.21" W

Au Sable Campus, Kalkaska County, Michigan. 21 May 2005.

With prayer bundles tied by Native Americans. Devil's Tower National Monument, Wyoming 6, October 2018

Devils Tower National Monument, Crook County, Wyoming 6 October 2018.

Excelsior Township, Kalkaska County, Michigan. 22 May 2005

Seeds Au Sable Institute, Kalkaska County, Michigan 31 May 2008

Excelsior Township, Kalkaska County, Michigan. 22 May 2005

Sand Lake, Kalkaska County, Michigan 15 May 2008