Brook Floater vs Pacific false buttonweed

Alasmidonta varicosa compared with Spermacoce exilis

Key Differences

Brook Floater is Vulnerable while Pacific false buttonweed is Not Evaluated.

Taxonomic Classification

Rank	Brook Floater	Pacific false buttonweed
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Mollusca (Mollusks)	Magnoliophyta (Flowering Plants)
Class	Bivalvia (Bivalvia)	Magnoliopsida (Dicots)
Order	Unionida (Unionida)	Gentianales (Gentianales)
Family	Unionidae	Rubiaceae
Genus	Alasmidonta	Spermacoce
Species	Alasmidonta varicosa	Spermacoce exilis

Conservation Status

Brook Floater

VU — Vulnerable

Pacific false buttonweed

NE — Not Evaluated

Physical Characteristics

Attribute	Brook Floater	Pacific false buttonweed
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.

Pacific false buttonweed

Habitat

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

Range

Widely distributed across Africa (4 countries), Asia (Singapore, Timor-Leste, Vietnam), North America (4 countries), Oceania and the Pacific (7 countries), and South America (Colombia).

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.