Brook Floater vs soft needleleaf

Alasmidonta varicosa compared with Polycnemum arvense

Key Differences

• Brook Floater is Vulnerable while soft needleleaf is Not Evaluated.

Taxonomic Classification

Rank	Brook Floater	soft needleleaf
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Mollusca (Mollusks)	Magnoliophyta (Flowering Plants)
Class	Bivalvia (Bivalvia)	Magnoliopsida (Dicots)
Order	Unionida (Unionida)	Caryophyllales (Caryophyllales)
Family	Unionidae	Amaranthaceae
Genus	Alasmidonta	Polycnemum
Species	Alasmidonta varicosa	Polycnemum arvense

Conservation Status

Brook Floater

VU — Vulnerable

soft needleleaf

NE — Not Evaluated

Physical Characteristics

Attribute	Brook Floater	soft needleleaf
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.

soft needleleaf

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Found across Europe (15 countries) and North America (Canada).

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.