A stout, gray to blackish woodwax that fruits in spring at high elevations, often beneath or beside melting snowbanks. The cap is pale gray-brown at the center and darker toward the margin, and the broad, distant gills turn gray with age. It is a prized edible in parts of Europe.
Edible and prized in some regions of Europe (Wikipedia). Look-alikes: Grayish Tricholoma species, including the toxic T. pardinum (GI irritant), have notched rather than decurrent gills, and Entoloma species such as the poisonous E. sinuatum have notched gills that turn pinkish and a pink spore print; check for waxy, decurrent gills and a white spore print.
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Habitat
Ectomycorrhizal; in duff or moss under conifers, often fir and Engelmann spruce in North America and Abies alba, Norway spruce or Scots pine in Europe; at high elevation in spring, linked to melting snow.
Distribution
North America in the mountains of Idaho, Montana, Oregon, Washington, northern Arizona and northern California, with herbarium records also from British Columbia; Europe from the French Pyrenees to the Prague region; reported from Pakistan.
Characteristics
Cap: 2.5-11 cm, broadly convex, smooth, sticky; pale grayish brown at the center, darker brown to blackish gray at the margin. Gills: broad, distant, white becoming gray to bluish gray. Stem: 3-10 cm long, 1-2.5 cm thick, whitish, smooth apart from a few tufts near the top. Odor and taste: not distinctive. Spore print: white. Spores: 6.5-8.5 x 4.5-5 um, elliptical (Wikipedia).