Constricted Feather-Moss vs Fly Agaric

Hygroamblystegium humile compared with Amanita muscaria

Key Differences

Constricted Feather-Moss is Not Evaluated while Fly Agaric is Least Concern.

Taxonomic Classification

Rank	Constricted Feather-Moss	Fly Agaric
Kingdom	Plantae (Plants)	Fungi (Fungi)
Phylum	Bryophyta	Basidiomycota (Club Fungi)
Class	Bryopsida (Bryopsida)	Agaricomycetes (Mushrooms)
Order	Hypnales (Hypnales)	Agaricales (Gilled Mushrooms)
Family	Amblystegiaceae	Agaricaceae (Agarics)
Genus	Hygroamblystegium	Amanita (Amanitas)
Species	Hygroamblystegium humile	Amanita muscaria

Conservation Status

Constricted Feather-Moss

NE — Not Evaluated

Fly Agaric

LC — Least Concern

Trend: Stable →

Physical Characteristics

Attribute	Constricted Feather-Moss	Fly Agaric
Diet	—	Decomposer
Average Lifespan	—	1 years
Average Length	—	20 cm
Average Weight	—	100 g

Habitat & Geographic Range

Constricted Feather-Moss

Habitat

Native to Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Belgium, Denmark, Norway, Portugal, and United States.

Fly Agaric

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Widely distributed across Europe (4 countries), North America (United States), Oceania and the Pacific (New Zealand), and South America (Brazil, Chile, Colombia).

Among the most iconic and recognizable fungi on Earth, fly agaric mushrooms display striking red caps with white flecked warts across boreal forests of the Northern Hemisphere. Despite their fairy-tale appearance, they contain potent psychoactive compounds including muscimol and ibotenic acid and are moderately toxic. They form critical mycorrhizal symbioses with birch, pine, and spruce trees, exchanging mineral nutrients for carbon and playing essential roles in boreal forest nutrient cycling.