Arched Earthstar vs Caesar's Amanita

Geastrum fornicatum compared with Amanita caesarea

Key Differences

• Arched Earthstar is Critically Endangered while Caesar's Amanita is Least Concern.

Taxonomic Classification

Rank	Arched Earthstar	Caesar's Amanita
Kingdom same	Fungi (Fungi)	Fungi (Fungi)
Phylum same	Basidiomycota (Club Fungi)	Basidiomycota (Club Fungi)
Class same	Agaricomycetes (Mushrooms)	Agaricomycetes (Mushrooms)
Order	Geastrales (Geastrales)	Agaricales (Gilled Mushrooms)
Family	Geastraceae	Agaricaceae (Agarics)
Genus	Geastrum	Amanita (Amanitas)
Species	Geastrum fornicatum	Amanita caesarea

Evolutionary Relationship

Arched Earthstar and Caesar's Amanita share a common ancestor at the Class level: Agaricomycetes. (Mushrooms)

Conservation Status

Arched Earthstar

CR — Critically Endangered

Caesar's Amanita

LC — Least Concern

Physical Characteristics

Attribute	Arched Earthstar	Caesar's Amanita
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Arched Earthstar

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 6 distinct biome types spanning the Neotropic and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Europe (4 countries), North America (United States), and South America (Brazil). Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Caesar's Amanita

Habitat

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

Range

Distributed across Belgium, Taiwan, and United States.

Arched Earthstar

The Arched Earthstar (Geastrum fornicatum) is a species in the genus Geastrum. It is currently classified as Critically Endangered on the IUCN Red List. Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 6 distinct biome types spanning the.

Caesar's Amanita

The Caesar's Amanita (Amanita caesarea) is a species in the genus Amanita. It is currently classified as Least Concern on the IUCN Red List. Typically found in forest floors, decomposing wood, and soil ecosystems.

Shared Countries

Both species can be found in 2 countries:

🇧🇪 Belgium 🇺🇸 United States