Brook Floater vs Field Brome

Alasmidonta varicosa compared with Bromus arvensis

Key Differences

Brook Floater is Vulnerable while Field Brome is Near Threatened.

Taxonomic Classification

Rank	Brook Floater	Field Brome
Kingdom	Animalia (動物)	Plantae (植物)
Phylum	Mollusca (軟体動物)	Magnoliophyta (被子植物門)
Class	Bivalvia (二枚貝)	Liliopsida (単子葉植物綱)
Order	Unionida (イシガイ目)	Poales (イネ目)
Family	Unionidae	Poaceae (Grass Family)
Genus	Alasmidonta	Bromus
Species	Alasmidonta varicosa	Bromus arvensis

Conservation Status

Brook Floater

VU — Vulnerable

Field Brome

NT — Near Threatened

Physical Characteristics

Attribute	Brook Floater	Field Brome
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.

Field Brome

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, temperate coniferous forests, and temperate broadleaf and mixed forests, among 7 distinct biome types spanning the Indomalayan and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (China, India, Japan), Europe (18 countries), and North America (Canada, Mexico, United States). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.