The literature associates it with birches in humid environments. In the boreal forest we met and photographed it in Jack Pine stands on well-drained sand. Sphagnum mosses promote the length of the stalk.
Pores and Pore Surface
Pore surface grayish to dingy brown with age, sometime with blue-greenish spots, immutable or staining brownish when bruised. Pores circular 2-3 per mm.
White immutable or partly reddening mainly in the stipe, sometimes bluing near the base of the stalk.
See also the description given in point 5.11 in the category of rough stemmed boletes.
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