Black Knot vs Brook Floater

Apiosporina morbosa compared with Alasmidonta varicosa

Key Differences

• Black Knot is Not Evaluated while Brook Floater is Vulnerable.

Taxonomic Classification

Rank	Black Knot	Brook Floater
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Ascomycota (Sac Fungi)	Mollusca (Mollusks)
Class	Dothideomycetes (Dothideomycetes)	Bivalvia (Bivalvia)
Order	Venturiales (Venturiales)	Unionida (Unionida)
Family	Venturiaceae	Unionidae
Genus	Apiosporina	Alasmidonta
Species	Apiosporina morbosa	Alasmidonta varicosa

Conservation Status

Black Knot

NE — Not Evaluated

Brook Floater

VU — Vulnerable

Physical Characteristics

Attribute	Black Knot	Brook Floater
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black Knot

Habitat

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

Range

Distributed across Denmark, Norway, and United States.

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.

Black Knot

The Black Knot (Apiosporina morbosa) is a species in the genus Apiosporina. Native to Europe and North America, inhabiting ecosystems characteristic of the region. Its geographic range spans Distributed across Denmark, Norway, and 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