Sulphur knight / Spring / Summer / Autumn / Toxic

Common Names

Sulphur knight, Gas works mushroom, Stinker, Gas agaric

Scientific Name

Tricholoma sulphureum

Family

Tricholomataceae

Commonly known as the Knights

Click here to learn more about the Knight family.

Habitat

Ectomycorrhizal with deciduous broadleaf trees, mainly oaks and Beech and occasionally found also in coniferous woodland. Fruits from spring to autumn. Occasional in the British Isles but less frequent in Scotland.

Description

Tricholoma sulphureum is a medium sized mushroom with a distinct yellow-green coloration and unmistakable smell.

Identifying Features:

Cap:

3–8 cm in diameter. Initially convex, then flattening sometimes with a central depression and vague umbo. Bright yellow with brown/ purple tinges

Stem:

3–10cm tall, Cylindrical and slender about 1-1.5 cm wide sometimes with a curve. Yellow with fine red-brown fibres, with no skirt.

Flesh:

Yellow, not fragile

Gills:

Yellow gills, distant and adnate to emarginate

Smell:

Often described as strong and unpleasant, with a smell of sulphur, coal gas, an ashtray or fresh feces.

Spores:

White

Uses:

In Food

Although it is not known to be deadly, Tricholoma sulphureum can cause nausea, vomiting, or gastrointestinal issues if consumed so is considered toxic and should not be eaten. Weirdly despite its awful smell it apparently doesn’t taste of much.

Medicinal Uses

There are no known medicinal uses

Known Hazards

Although it is not known to be deadly, Tricholoma sulphureum can cause nausea, vomiting, or gastrointestinal issues if consumed so is considered toxic and should not be eaten.