Poplar

Along trail above 1st falls and below south fork creek crossing.

Along trail above 1st falls and below south fork creek crossing. Immature female catkin.

Along trail above 1st falls and below south fork creek crossing.

Leaf detail.

Pistillate flower detail.

mature pistillate catkin.

resinous bracts that fall of with newly emerged leaves in spring

fluffy cotton-like seeds being dispersed

younger tree felled by beavers, cottonwood cambium is one of their favorite foods