My Maple Shrub is Flaming

by Jennifer Frazer on August 30, 2010

Here in the Colorado Rockies we have few tree species compared to many other forests of the world. If you learn about 14 trees, you’ve learned 95% of the native trees in the state. Of those, only two are hardwoods — quaking aspen, and plains cottonwood. But we do have a maple — well, a mapley sort of shrub, anyway: Rocky Mountain Maple, Acer glabrum.

Many times in the last six years I’ve encountered examples of this shrub that look like they could use some Tucks Medicated Pads:

Here’s a close-up someone else took. So here’s your quiz for the week: What is this? Here’s a hint — It’s NOT a fungus, which was certainly my first guess. Good luck, team.

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You Mite Want to Get That Looked At . . .
September 1, 2010 at 2:13 pm

{ 6 comments… read them below or add one }

kati August 30, 2010 at 7:45 pm

some kind of eggs? hmmm now i’m going to have to google it.
http://comics.com/pearls_before_swine/2010-05-23/

Jennifer Frazer August 30, 2010 at 8:07 pm

That comic is the most perfect summation of the internet I’ve ever seen. Here’s to the interw3bz! The cause of — and solution to — all of life’s problems . . .

Jennifer Frazer August 31, 2010 at 10:33 am

Oh — I should also add that eggs is not correct, but eggs are part of the process that makes this . . .

Janice August 31, 2010 at 1:51 pm

Jennifer,
The red splotches are galls caused by the Eriophyid mite, Eriophyes calcercis.

Jennifer Frazer August 31, 2010 at 2:20 pm

Yes! We have a winner. : ) Full follow-up post to come.

kati August 31, 2010 at 9:34 pm

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