Brook Floater vs Lesser Red-knotgrass

Alasmidonta varicosa compared with Polygonum arenarium

Key Differences

• Brook Floater is Vulnerable while Lesser Red-knotgrass is Not Evaluated.

Taxonomic Classification

Rank	Brook Floater	Lesser Red-knotgrass
Kingdom	Animalia (động vật)	Plantae (thực vật)
Phylum	Mollusca (động vật thân mềm)	Magnoliophyta (Flowering Plants)
Class	Bivalvia (Thân mềm hai mảnh vỏ)	Magnoliopsida (Dicots)
Order	Unionida (Unionoida)	Caryophyllales (Bộ Cẩm chướng)
Family	Unionidae	Polygonaceae
Genus	Alasmidonta	Polygonum
Species	Alasmidonta varicosa	Polygonum arenarium

Conservation Status

Brook Floater

VU — Vulnerable

Lesser Red-knotgrass

NE — Not Evaluated

Physical Characteristics

Attribute	Brook Floater	Lesser Red-knotgrass
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.

Lesser Red-knotgrass

Habitat

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

Range

Found across Europe (11 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