Brook Floater vs Onion Smut

Alasmidonta varicosa compared with Urocystis magica

Key Differences

• Brook Floater is Vulnerable while Onion Smut is Not Evaluated.

Taxonomic Classification

Rank	Brook Floater	Onion Smut
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Mollusca (Mollusks)	Basidiomycota (Club Fungi)
Class	Bivalvia (Bivalvia)	Ustilaginomycetes (Ustilaginomycetes)
Order	Unionida (Unionida)	Urocystidales (Urocystidales)
Family	Unionidae	Urocystidaceae
Genus	Alasmidonta	Urocystis
Species	Alasmidonta varicosa	Urocystis magica

Conservation Status

Brook Floater

VU — Vulnerable

Onion Smut

NE — Not Evaluated

Physical Characteristics

Attribute	Brook Floater	Onion Smut
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic 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.

Onion Smut

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway, Poland, and Sweden.

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.