Crowded Parchment
ExploreFungi
Crowded Parchment
stereum complicatum
The Crowded Parchment (Stereum complicatum) is a beautiful and ubiquitous crust fungus that populates the deciduous forests of North America. Renowned for its vibrant shades of orange, yellow, and buff, this non-gilled bracket fungus grows in tight, overlapping, and often fused clusters on decaying hardwood. It plays an essential role in forest ecosystems as a saprobe, actively recycling nutrients by breaking down complex organic compounds like lignin and cellulose from fallen branches and logs. Unlike many soft, fleshy mushrooms, the tough, paper-thin structure of the Crowded Parchment allows it to withstand various weather extremes. It can shrivel and go dormant during dry spells, only to rehydrate and continue sporulating when rains return. This resilience makes it a reliable find for woodland explorers throughout the year.
Habitat: Typically found on decaying logs, fallen branches, and stumps of hardwood trees, especially oaks, in temperate deciduous forests.
Appearance
This fungus features small, thin, fan-shaped to semi-circular caps that measure 1 to 4 cm in width, though they frequently fuse into extensive, wavy, crowded shelves. The upper surface is finely hairy or velvety and displays striking concentric bands of bright orange, saffron, and brownish-orange, which fade to a dull buff or greyish-white as they age. The underside is completely smooth, lacking pores or gills, and typically presents a bright orange to pale yellowish-buff coloration. When fresh, the margins are often brightly colored and distinctly wavy.
KingdomFungiPhylumBasidiomycotaClassAgaricomycetesOrderRussulalesFamilyStereaceaeGenusStereum
Category
FungiRarity
Common
Danger
1/5 · Very low
Snaps
10
Interesting facts
Despite looking somewhat like a small Turkey Tail fungus, Crowded Parchment has a completely smooth underside with no visible pores or gills.
In dry weather, this fungus curls inward and fades in color, performing a spectacular color transformation back to bright orange within minutes of getting wet.
Its scientific name, 'complicatum', refers to the folded, tangled, or 'complicated' way the caps crowd and fuse together.
Special abilities
Ability
Desiccation Revival
Can dry out completely during periods of drought, becoming brittle, and quickly revive to release spores upon rehydration.
Ability
Lignin Decomposition
Secretes powerful extracellular enzymes that break down tough lignin and cellulose in dead wood, facilitating nutrient recycling.
Ability
Coalescent Growth
Individual fruiting bodies can fuse together seamlessly, sharing resources to cover massive surface areas on host logs.
Measurements & details
- Length
- 1-4 cm
- Lifespan
- 1-2 years
Diet & Feeding
As a saprotrophic fungus, it feeds on decaying organic matter, specifically decomposing dead hardwood limbs, logs, and stumps.
Primary Foods
- Dead Oak Wood
- Decaying Hardwood Cellulose
- Lignin Complexes
- Fallen Birch Branches
Ecological connections
host plant
White Oak
Quercus alba
Grows primarily as a saprobe decomposing dead wood from this host tree.
eaten by
Pleasing Fungus Beetle
Megalodacne heros
Larvae of this beetle feed on the fruiting bodies and spores of the fungus.
competitor
Turkey Tail
Trametes versicolor
Competes with other wood-decaying bracket fungi for space and nutrients on the same hardwood logs.
Traits
No trait badges are assigned for this object yet.
Also known as
No aliases listed yet.
Collections
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Safety
Danger
1/5 · Very low
No special safety notes yet.
Frequently Asked Questions
How to identify Crowded Parchment?
The easiest way to identify Crowded Parchment is to use the Snappit nature identifier app.
How long is Crowded Parchment?
1-4 cm
How long does Crowded Parchment live?
1-2 years
What does Crowded Parchment eat?
As a saprotrophic fungus, it feeds on decaying organic matter, specifically decomposing dead hardwood limbs, logs, and stumps.
Where is Crowded Parchment usually found?
Typically found on decaying logs, fallen branches, and stumps of hardwood trees, especially oaks, in temperate deciduous forests.
Snap Map
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Photo attribution
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License: CC BY 4.0 ↗
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