Cap: 3-9 cm across, first convex, soon expanded, flattened to sometimes depressed with a low, broad umbo, little viscid with apppressed sand particles, cinnamon to dark or dark brick colored, margin is same colored only little paler, margin is undulate.
Hymenophore: lamellae are first pale, later clay buff colored, narrow attached, crowded, broad, edge is whitish and fimbriate, without droplets.
Spore print: brown
Spore: elliptic to ovoid, 10-13,4 x 5,7-7,4 μm
Stem: 4,5-9 x 0,7-1,4 cm, cylindric, fibrillose, above the veil pruinose, white, discoloring in patches to clay buff, lower part is with appressed sand particles.
Flesh: white, partly tinged like pale gray yellow, odor is radish like, without taste.
Habitat: deeply buried in sand in sand dunes under creeping willow, grows in fall.