spiny gall on a rose leaf

June 6, 2021 • Gorge Trail #400, John B. Yeon State Park • Multnomah County, Oregon

Coordinates: 45.61250,-121.99932 (click for map)
spiny gall on a rose leaf (Diplolepis polita, Rosa sp.) [Gorge Trail #400, John B. Yeon State Park, Multnomah County, Oregon]
Filename: 20210606-114910.jpg 2048x1536 pixels, ISO 200, f5.0 @ 1/125 sec
Diplolepis polita, Rosa sp.

The gall is from a "spiny leaf gall wasp."

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