Fly Agaric vs Giant arrowhead

Amanita muscaria compared with Sagittaria montevidensis

Key Differences

• Fly Agaric is Least Concern while Giant arrowhead is Not Evaluated.

Taxonomic Classification

Rank	Fly Agaric	Giant arrowhead
Kingdom	Fungi (Fungi)	Plantae (Plants)
Phylum	Basidiomycota (Club Fungi)	Magnoliophyta (Flowering Plants)
Class	Agaricomycetes (Mushrooms)	Liliopsida (Monocots)
Order	Agaricales (Gilled Mushrooms)	Alismatales (Alismatales)
Family	Agaricaceae (Agarics)	Alismataceae
Genus	Amanita (Amanitas)	Sagittaria
Species	Amanita muscaria	Sagittaria montevidensis

Conservation Status

Fly Agaric

LC — Least Concern

Trend: Stable →

Giant arrowhead

NE — Not Evaluated

Physical Characteristics

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

Habitat & Geographic Range

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).

Giant arrowhead

Habitat

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

Range

Widely distributed across Africa (Tanzania), Asia (Taiwan), North America (United States), Oceania and the Pacific (Australia, New Zealand), and South America (Brazil).

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 3 countries:

🇧🇷 Brazil 🇳🇿 New Zealand 🇺🇸 United States