Cap: 0,5-3 cm across, first convex, later flattened, sometimes dented in the center, usually with a little bump in the middle, hygrophanous, in wet orange brownish, middle often darker
Hymenophore: first white to creamy, later orange red, broad, free.
Spore print: cream
Spore: subglobose to elliptic, 7-8,9 x 6-7 μm, ornament, with warts and ribs, which are morely net like connected.
Stem: 1,5-4 x 0,2-0,4 cm, cylindrical, hollow, almost same color as cup, on top whitened.
Flesh: cream to brownish, pleasant fruit odor, taste unplesant. Milk: white, first unchangeable, later yellowish, mild.
Habitat: usually in groups under alder, on moist, poor soils. Widespread, but not common. Summer-fall.
Remarks: Lactarius obscuratus var. radiatus: cup is orange, spore print olive color.