
Blewit
collybia nuda
The Blewit, recorded under the names Collybia nuda, Lepista nuda, or Clitocybe nuda, is a striking and highly sought-after woodland mushroom. Renowned for its beautiful purplish hues and sweet, floral aroma that some liken to frozen orange juice, this fungus is a favorite among autumn foragers. Blewits are saprotrophic organisms, meaning they derive their nutrients by breaking down dead and decaying organic matter. By digesting tough lignin and cellulose in leaf litter, they play an essential role in recycling nutrients back into the forest ecosystem. They are especially famous for their tendency to fruit late in the season, often persisting through the first mild frosts of winter. Aside from their ecological importance, they are celebrated for their culinary value, offering a rich, earthy flavor once properly cooked. Whether found forming mysterious 'fairy rings' in a dark forest or sprouting from a suburban compost heap, the Blewit remains one of the most charismatic and beneficial macrofungi of the cooler months.
Habitat: Found in dense deciduous and coniferous forests, often growing abundantly on decaying leaf litter, pine needles, or nutrient-rich compost heaps.
Appearance
Blewits are easily recognized when young by their vivid lilac or bluish-purple caps, stems, and gills. The cap, which ranges from 4 to 15 centimeters in diameter, starts out convex with noticeably inrolled margins, but gradually flattens and becomes wavy or irregular as it matures. Over time, the vibrant purple color tends to fade from the center outward, shifting to a tan, brownish, or pinkish-buff shade, though the crowded gills usually retain their lilac tint much longer. The stem is stout, solid, and typically features a slightly bulbous base coated in fuzzy purple mycelium. A key identifier is the spore print, which is a pale pinkish-buff, helping to distinguish it from dangerous purple lookalikes like the Cortinarius species that have rusty brown spores.

Category
FungiRarity
Common
Danger
1/5 · Very low
Snaps
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Interesting facts
Although edible and delicious, blewits must be thoroughly cooked before eating, as they contain volatile toxins that can cause gastric upset if consumed raw.
Blewits have a distinct, slightly sweet scent that many foragers compare to frozen orange juice or anise.
Their vibrant purple color is thought to act as a natural camouflage against the dark, purplish hues of decomposing autumn leaves in a shadowed forest.
They are famous for growing in large circles called 'fairy rings,' which can expand outward each year and persist for decades.
Special abilities
Litter Decomposition
Excretes powerful extracellular enzymes that break down complex organic compounds like lignin and cellulose in dead leaves.
Frost Tolerance
Possesses a remarkable resilience to cold temperatures, allowing the fruiting bodies to survive and grow during late autumn frosts.
Mycelial Expansion
Forms massive underground networks that radiate outward, often resulting in large circular fruiting formations known as fairy rings.
Measurements & details
- Length
- 4-15 cm
- Weight
- 0.01-0.15 kg
- Lifespan
- 1-20 years
Diet & Feeding
As a saprotrophic fungus, it feeds by breaking down dead plant material and absorbing the resulting nutrients.
Primary Foods
- Dead leaves
- Pine needles
- Humus
- Woodchips
- Compost
Foraging Method
- Foraging
Ecological connections

English Oak
Quercus robur
Provides the fallen leaf litter that the fungus breaks down for its primary food source.
Fungus Gnat
Sciara thomae
Lays eggs in the mushroom, and the resulting larvae feed heavily on the fungal tissue.

Eastern Gray Squirrel
Sciurus carolinensis
Forages on the fleshy caps of the mushrooms during the autumn months to stockpile calories.
Traits
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Also known as
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Safety
Danger
1/5 · Very low
No special safety notes yet.
Frequently Asked Questions
How long is Blewit?
4-15 cm
How much does Blewit weigh?
0.01-0.15 kg
How long does Blewit live?
1-20 years
What does Blewit eat?
As a saprotrophic fungus, it feeds by breaking down dead plant material and absorbing the resulting nutrients.
Where is Blewit usually found?
Found in dense deciduous and coniferous forests, often growing abundantly on decaying leaf litter, pine needles, or nutrient-rich compost heaps.
How does Blewit hunt?
Foraging
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