Wild Species Potency: ★☆☆☆☆

Pluteus salicinus

Common name: Willow Shield

Field Identification

Cap3–10cm; convex to broadly flat; gray to gray-brown with darker center; smooth to slightly fibrous surface; no viscid coating
GillsFree from stem; white becoming pink with spore maturity — a key genus marker
Stem4–8cm; whitish to pale gray; fibrous; no ring; solid; may have bluish-gray tinge near base
Spore PrintPink (salmon) — a critical identification marker; NOT purple-brown
HabitatDecaying wood, fallen logs, and stumps of deciduous trees — particularly willow, poplar, beech, and alder; moist woodland settings
DistributionWidespread in Europe; also North America and parts of Asia; cosmopolitan in suitable habitat
SeasonMay–October; most common summer through early autumn

Key Identification Feature

The pink (salmon) spore print is the definitive Pluteus genus identifier. Combined with free gills, white-to-pink coloration, and decaying wood habitat, Pluteus salicinus is reliably identifiable. The bluish tinge on the stem (when present) supports identification.

⚠ Dangerous Lookalikes

Non-psychoactive Pluteus cervinus (deer mushroom — also pink spores; brown cap; more common); Amanita species (DEADLY — free gills but different cap features, ring, and volva)

Notes

Pluteus salicinus is one of the relatively rare examples of psilocybin occurring outside the Psilocybe, Panaeolus, Gymnopilus, and Inocybe genera. Its pink spore print (typical of Pluteus genus) distinguishes it completely from Psilocybe species visually — but it does contain psilocybin and psilocin. The potency is very low; it is not a recreational or therapeutic target. Its significance is primarily taxonomic and educational, demonstrating the broader phylogenetic distribution of psilocybin biosynthesis pathways.

Legal Status Warning Psilocybin-containing mushrooms are controlled substances in most jurisdictions. This guide is for educational purposes only. Wild foraging for psilocybin mushrooms may be illegal in your location. Never consume wild mushrooms without positive identification from an expert mycologist — misidentification can be fatal.

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