Wyoming State Tree

Wyoming State Tree

Plains Cottonwood 

Salicaceae Populus deltoides wyoming plains cottonwood tree
Alternate, simple, pinnately veined, 3 to 6 inches long, triangular (deltoid) in shape with a crenate/serrate margin. The petiole is flattened and glands are present at the top of the petiole.


Dioecious, male and female as pendulous catkins, appearing before the


Cottony seeds, 1/4 inch long borne in a dehiscent capsule. Maturing
over summer.


Stout, somewhat angled, and yellowish. Buds are 3/4 inch long, covered
with several brown, resinous scales. Has a bitter aspirin taste.


Smooth, gray to yellow-green when young. Later turning gray with thick ridges and deep furrows.


A large tree with a clear bole and an open spreading crown resulting
in a somewhat vase-shaped form.

wyoming plains cottonwood tree (1)
Copyright 2019 Virginia Tech Dept. of Forest Resources and Environmental
Conservation; Photos and text by: John Seiler, Edward Jensen,
Alex Niemiera, and John Peterson; Silvics reprinted from Ag
Handbook 654; range map source information