Birch Bristle Bracket vs Brook Floater

Phellinus lundellii compared with Alasmidonta varicosa

Key Differences

• Birch Bristle Bracket is Critically Endangered while Brook Floater is Vulnerable.

Taxonomic Classification

Rank	Birch Bristle Bracket	Brook Floater
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Basidiomycota (Club Fungi)	Mollusca (Mollusks)
Class	Agaricomycetes (Mushrooms)	Bivalvia (Bivalvia)
Order	Hymenochaetales (Hymenochaetales)	Unionida (Unionida)
Family	Hymenochaetaceae	Unionidae
Genus	Phellinus	Alasmidonta
Species	Phellinus lundellii	Alasmidonta varicosa

Conservation Status

Birch Bristle Bracket

CR — Critically Endangered

Brook Floater

VU — Vulnerable

Physical Characteristics

Attribute	Birch Bristle Bracket	Brook Floater
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Birch Bristle Bracket

Habitat

Inhabits tropical and subtropical moist broadleaf forests within the Indomalayan biogeographic realm.

Range

Distributed across Denmark, Norway, Sweden, and Taiwan. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Brook Floater

Habitat

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

Range

Found in United States. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Birch Bristle Bracket

The Birch Bristle Bracket (Phellinus lundellii) is a species in the genus Phellinus. It is currently classified as Critically Endangered on the IUCN Red List. Inhabits tropical and subtropical moist broadleaf forests within the Indomalayan biogeographic realm.

Brook Floater

The Brook Floater (Alasmidonta varicosa) is a species in the genus Alasmidonta. It is currently classified as Vulnerable on the IUCN Red List. Native to North America, inhabiting ecosystems characteristic of the region.