Arctic Bentgrass vs Fly Agaric

Agrostis mertensii compared with Amanita muscaria

Key Differences

• Arctic Bentgrass is Not Evaluated while Fly Agaric is Least Concern.

Taxonomic Classification

Rank	Arctic Bentgrass	Fly Agaric
Kingdom	Plantae (Plants)	Fungi (Fungi)
Phylum	Magnoliophyta (Flowering Plants)	Basidiomycota (Club Fungi)
Class	Liliopsida (Monocots)	Agaricomycetes (Mushrooms)
Order	Poales (Grasses)	Agaricales (Gilled Mushrooms)
Family	Poaceae (Grass Family)	Agaricaceae (Agarics)
Genus	Agrostis	Amanita (Amanitas)
Species	Agrostis mertensii	Amanita muscaria

Conservation Status

Arctic Bentgrass

NE — Not Evaluated

Fly Agaric

LC — Least Concern

Trend: Stable →

Physical Characteristics

Attribute	Arctic Bentgrass	Fly Agaric
Diet	—	Decomposer
Average Lifespan	—	1 years
Average Length	—	20 cm
Average Weight	—	100 g

Habitat & Geographic Range

Arctic Bentgrass

Habitat

Typically found in grasslands, wetlands, forests, and cultivated landscapes.

Range

Widely distributed across Europe (Finland, Norway, Sweden), North America (Canada, United States), and South America (Colombia).

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).

Arctic Bentgrass

The Arctic Bentgrass (Agrostis mertensii) is a species in the genus Agrostis. Typically found in grasslands, wetlands, forests, and cultivated landscapes.

Fly Agaric

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.

Shared Countries

Both species can be found in 4 countries:

🇨🇴 Colombia 🇳🇴 Norway 🇸🇪 Sweden 🇺🇸 United States