California flat-top agaricus

Agaricus deardorffensis

A species of Agaricus.

The seemingly harmless, inwardly curved cap of the California flat-top agaricus (Agaricus deardorffensis) is quite misleading. Its unassuming look belies the fact that this fungus is remarkably poisonous! A tell-tale solvent-like scent, however, betrays its true nature. Given its strong resemblance to a non-toxic relative, foragers must exercise extreme vigilance. Mistaking it can result in severe gastrointestinal distress.

Attributes of California flat-top agaricus

PlantJoy - ID plants and mushrooms, and learn more about them🌿

Identify and diagnose plants, get toxicity alerts, and explore safety guides for all types of fungi.

Try for Free
Cap Diameter
15 - 25 cm
Height
20 - 35 cm
Cap
Cap 15 - 25 cm across; convex to flat; brown to white; smooth; display light yellow when rubbed
Cap Shape
Convex, Flat
Cap Surfaces
Fibrillose-scaly
Gills
Free; close; pink, brown
Gill Attachment
Free
Stem
Stem 15 - 25 cm long, 1.5 - 2.5 cm thick; whitish
Stem Shapes
Cylindrical
Stem Surfaces
Smooth
Flesh
Firm; white; unchanging when sliced
Ring
With Ring
Spore Print Color
Dark brown
Odor
Mild, occasionally with a phenolic scent.
Body Color
BrownWhite
Flesh Bruises
Discolor to yellowish
Growth Form
Solitary, Gregarious
Nutrient Gathering
Saprophytic
Substrate
On soil
You can find California flat-top agaricus by these plants
Norway spruce
Occurence Habitats
Coniferous Woodland, Disturbed Lands

Scientific Classification of California flat-top agaricus

PlantJoy APP

AI mushroom expert in your pocket

Try for Free
Phylum
Club fungi
Class
Mushroom-forming fungi
Order
Gilled fungi
Family
Agaricaceae
Genus
Agaricus
⚠️

Toxicity and Edibility of California flat-top agaricus

PlantJoy: Identify & Forage

Your Essential Guide to Edible vs. Toxic Mushrooms. Forage with Confidence!

Try for Free

Is California flat-top agaricus Toxic?

Ingesting the California flat-top agaricus can lead to a range of unpleasant effects, from mild discomfort to significant digestive distress, as this mushroom is poisonous. Those who consume it frequently report experiencing symptoms such as sickness, throwing up, loose stools, stomach cramps, and excessive perspiration.

Is California flat-top agaricus Toxic to Dogs?

California flat-top agaricus can be dangerous to dogs. If your pet has consumed this mushroom, seek immediate veterinary attention. Symptoms may vary, but early intervention is crucial for the best outcome.

More Mushrooms That Are Similar to California flat-top agaricus