NA material different than Eurasian C. fruticulosa
Tomentose below; on soil in Pseudotsuga - Abies grandis - Umbellularia - Arbutus menziesii forest, in ravine.
On dead fallen Abies grandis in Pseudotsuga forest
Growing on submerged wood in the Allegheny River downstream of the Kinzua Dam. Found by @dariene0127.