Brook Floater vs Needle Rust

Alasmidonta varicosa compared with Chrysomyxa ledi

Key Differences

• Brook Floater is Vulnerable while Needle Rust is Not Evaluated.

Taxonomic Classification

Rank	Brook Floater	Needle Rust
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Mollusca (Mollusks)	Basidiomycota (Club Fungi)
Class	Bivalvia (Bivalvia)	Pucciniomycetes (Pucciniomycetes)
Order	Unionida (Unionida)	Pucciniales (Pucciniales)
Family	Unionidae	Coleosporiaceae
Genus	Alasmidonta	Chrysomyxa
Species	Alasmidonta varicosa	Chrysomyxa ledi

Conservation Status

Brook Floater

VU — Vulnerable

Needle Rust

NE — Not Evaluated

Physical Characteristics

Attribute	Brook Floater	Needle Rust
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.

Needle Rust

Habitat

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

Range

Found across Europe (6 countries) and North America (United States).

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.

Shared Countries

Both species can be found in 1 countries:

🇺🇸 United States