Wyoming State Tree
Plains Cottonwood
Salicaceae Populus deltoides
Leaf
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.
Flower
Dioecious, male and female as pendulous catkins, appearing before the
leaves.
Fruit
Cottony seeds, 1/4 inch long borne in a dehiscent capsule. Maturing
over summer.
Twig
Stout, somewhat angled, and yellowish. Buds are 3/4 inch long, covered
with several brown, resinous scales. Has a bitter aspirin taste.
Bark
Smooth, gray to yellow-green when young. Later turning gray with thick ridges and deep furrows.
Form
A large tree with a clear bole and an open spreading crown resulting
in a somewhat vase-shaped form.
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
Conservation; Photos and text by: John Seiler, Edward Jensen,
Alex Niemiera, and John Peterson; Silvics reprinted from Ag
Handbook 654; range map source information