Common cobweb (Cortinarius glaucopus)
- Division: Basidiomycota (Basidiomycetes)
- Subdivision: Agaricomycotina (Agaricomycetes)
- Class: Agaricomycetes (Agaricomycetes)
- Subclass: Agaricomycetidae (Agaricomycetes)
- Order: Agaricales (Agaric or Lamellar)
- Family: Cortinariaceae (Spiderwebs)
- Genus: Cortinarius (Spiderweb)
- Type: Cortinarius glaucopus
Hat 3-10 cm in diameter, at first hemispherical, dirty yellow, then convex, prostrate, often slightly depressed, with a wavy edge, slimy, red, yellow-brown, orange-brown with a yellowish-olive edge or dirty greenish, olive with brown fibers.
The plates are frequent, adherent, at first gray-violet, lilac, or pale ocher, then brownish.
Spore powder is rusty-brown.
Leg 3-9 cm long and 1-3 cm in diameter, cylindrical, widened towards the base, often with a nodule, dense, silky fibrous, with a gray-lilac tint above, below yellowish-greenish or whitish, ocher, with brownish silky fibrous belt.
The pulp is dense, yellowish, in a stem with a bluish tint, with a slight unpleasant odor.
It grows from August to the end of September in coniferous, mixed and deciduous forests, found in more eastern regions.
A conditionally edible mushroom of low quality, used fresh (boiling for about 15-20 minutes, pour out the broth) and pickled.
Experts distinguish three varieties, variants of the fungus: var. glaucopus with rufous cap, with olive edges and lilac blades, var. olivaceus with an olive cap, with reddish-brown fibrous scales and lavender plates, var. acyaneus with a red cap and whitish plates.