mystery rock-cress

July 3, 2019 • Coffin Mountain Lookout Trail, Willamette National Forest • Linn County, Oregon

Coordinates: 44.61962,-122.04548
mystery rock-cress (Boechera sp.) [Coffin Mountain Lookout Trail, Willamette National Forest, Linn County, Oregon]
Filename: 20190703-131642.jpg 2792x4188 pixels, ISO 125, f6.3 @ 1/200 sec
Boechera sp.

The fact that this rock-cress is completely glabrous (non-hairy) makes me wonder it it might be Boechera hastatula, which mostly only grows in eastern Oregon but HAS been sighted in Linn County. Otherwise, Boechera lyallii is a possibility, but the basal leaves don't seem right.

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