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Felt-ringed agaricus

Agaricus hondensis

A species of Agaricus

Fruitbodies of the felt-ringed agaricus (Agaricus hondensis) feature a soft ring partway up the stem that looks almost as if this mushroom is wearing a skirt. It is incredibly poisonous, and otherwise resembles many non-toxic mushrooms on the forest floor, so extreme care should be taken to identify this species correctly. Eating this mushroom will cause severe gastric disturbance!

Cap Diameter:

6 - 15 cm

Odor:

Unpleasant, somewhat chemical-like.

General Info About Felt-ringed agaricus

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Attributes of Felt-ringed agaricus

Cap Diameter

6 - 15 cm

Height

10 - 16 cm

Cap

Cap up to 15 cm in diameter; convex; white to gray-brown; dry, smooth, covered with scales

Cap Shape

Convex, Flat

Cap Surfaces

Fibrillose-scaly

Gills

Free; close; white, pinkish, lilac-gray, brownish

Gill Attachment

Free

Stem

7 - 20 cm long, 1 - 3 cm thick; with a thicker or bulbous base; white; firm, smooth

Stem Shapes

Club Shaped

Stem Surfaces

Smooth

Flesh

Thick; white; unchanging when bruised or injured

Ring

Stiff, felt-like; thick; without a thick, grooved edge

Ring

With Ring

Spore Print Color

Brown to purple-brown, chocolate brown

Odor

Unpleasant, somewhat chemical-like.

Body Color

Brown

Gray

White

Pink

Flesh Bruises

The flesh or milk does not discolor when bruised or cut.

Growth Form

Solitary, Gregarious, Scattered

Nutrient Gathering

Saprophytic

Substrate

Leaf or Needle Litter, On soil

You can find Felt-ringed agaricus by these plants:

Tanoak, Coast live oak

Occurence Habitats

Mixed Woodland

Species Status

Most common in California

Endangered Species

How to Identify Felt-ringed agaricus

Fruiting Body Cap Gills

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Habitat of Felt-ringed agaricus

The felt-ringed agaricus is endemic to the Pacific Northwest of North America and it occurs in mixed forests. It grows on the ground densely covered with forest litter, always in the vicinity of its host tree. Douglas fir (Pseudotsuga menziesii) and western red cedar (Thuja plicata) are the most common hosts with which this species forms a symbiotic relationship, exchanging vital nutrients.

Scientific Classification of Felt-ringed agaricus

Phylum

Club fungi

Class

Mushroom-forming fungi

Order

Gilled fungi

Family

Agaricaceae

Genus

Agaricus

Toxicity and Edibility of Felt-ringed agaricus

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Is Felt-ringed agaricus Toxic?

The felt-ringed agaricus is moderately to severely toxic when consumed. It contains a naturally occurring chemical called hydroquinone, which can cause up to 24 hours of absolutely horrific digestion problems. Felt-ringed agaricus has the same appearance as many non-toxic mushrooms, leading to some accidental poisoning cases.

Similar Species to Felt-ringed agaricus

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Tips for Finding Felt-ringed agaricus

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What are the Ideal Soil Conditions for Felt-ringed agaricus

Rich, well-decomposed organic material.

What are Some Tips for Finding Felt-ringed agaricus

Search around areas where dead leaves and conifer needles collect.
Inspect the base of trees and openings in the forest where sunlight filters through.
Gently clear away top layers of leaves or needles to reveal hidden mushrooms.
Look for natural debris piles, such as those formed by fallen branches, as felt-ringed agaricus may grow nearby.
Be thorough and patient, as felt-ringed agaricus can blend in with the forest floor debris.