Bur Marigold vs Fly Agaric

Bidens laevis compared with Amanita muscaria

Key Differences

Bur Marigold is Not Evaluated while Fly Agaric is Least Concern.

Taxonomic Classification

Rank	Bur Marigold	Fly Agaric
Kingdom	Plantae (Plants)	Fungi (Fungi)
Phylum	Magnoliophyta (Flowering Plants)	Basidiomycota (Club Fungi)
Class	Magnoliopsida (Dicots)	Agaricomycetes (Mushrooms)
Order	Asterales (Daisies & Sunflowers)	Agaricales (Gilled Mushrooms)
Family	Asteraceae (Daisy Family)	Agaricaceae (Agarics)
Genus	Bidens	Amanita (Amanitas)
Species	Bidens laevis	Amanita muscaria

Conservation Status

Bur Marigold

NE — Not Evaluated

Fly Agaric

LC — Least Concern

Trend: Stable →

Physical Characteristics

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

Habitat & Geographic Range

Bur Marigold

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Distributed across Brazil, Chile, Colombia, Japan, 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).

Bur Marigold

The Bur Marigold (Bidens laevis) is a species in the genus Bidens. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

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.