July to October
Gyroporus cyanescens
Gyroporus cyanescens
Certain identification required before any consumption
- Raw
- Raw consumption not documented
- Cooking
- Cooking recommended, minimum time not established
- Review
- Certain identification required before any consumption
- Instruction
- The Swiss Federal Food Safety and Veterinary Office advises against eating wild mushrooms raw. Have this harvest checked by an expert and cook it thoroughly; no species-specific cooking requirement is established here.
A straw-yellow bolete with brittle flesh that turns cornflower blue almost immediately, and a stem that develops chambers before becoming hollow.
View current conditions on the map
Guide contents
Guide contents
Season
Indicative period: July to October.
Habitat
Broadleaf, mixed or conifer woodland, on relatively light or sandy soils.
Method
Check several visible features before retaining a species name.
Three features to check on the specimen.
Cap
Convex to flattened, buff-yellow, fibrous and dry.
Pores
White to cream pores, later yellowish, turning blue almost immediately when touched.
Stem and flesh
Pale to buff, dry and brittle stem without a network, developing chambers and then becoming hollow. White to cream flesh that immediately turns cornflower blue when cut.
Examine the specimen in this order.
- Examine the underside and the stem all the way to its base.
- Compare the flesh reaction only on a section already needed for examination.
- Keep the host tree and habitat as supporting evidence.
Features incompatible with this species.
- Gyroporus castaneus, brown and without blue staining.
- Cyanoboletus pulverulentus, darker and staining blackish-blue.
- A pale Russula seen only from above.
