Cottonwood Petiole Gall

Share:

Listens: 0

Natural North Dakota

Miscellaneous


There are a lot of cottonwood tree leaves lying in an area on the Lake Metigoshe hiking and biking trail. All of them are green with a large round growth, or gall, on the leave stalk or petiole. It made me wonder what was going on. So I had to do a little investigating.