Tricholoma sulphureum var. sulphureum - Hat with a diameter of 30 to 80 mm. Ocher, yellow-olive, sulfur-yellow, gray-yellow or dirty brown, sometimes darker on top. The shape of the young fruiting body is almost hemispherical, later convex sometimes with a bulging middle part, finally flattened or irregularly funnel-shaped. Dry surface, almost smooth or covered with very fine villi. The edge is sharp, smooth, non-striated, in adult fruiting bodies it may be slightly wavy.

Sulfur yellow, brittle, 4 to 8 mm wide, set quite rarely, sinuate, young in specimens, similar to the stipe.

Yellow-olive or sulfur-yellow shaft, with white felt at the base. Cylindrical, sometimes bellied, often bent and twisted. Lengths from 30 to 80 mm and thickness from 10 to 20 mm. Surface with fine long darker purple-red fibers. Full.

Sulfur-yellow pulp, unchanging. Mild but unpleasant taste. Intense disgusting carbide smell, suffocating.

Occurrence: In deciduous and coniferous forests in summer and autumn, quite common.

Value: Inedible, slightly poisonous.