Brook Floater vs star-thistle

Alasmidonta varicosa compared with Centaurea calcitrapa

Key Differences

Brook Floater is Vulnerable while star-thistle is Extinct.

Taxonomic Classification

Rank	Brook Floater	star-thistle
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Mollusca (Mollusks)	Magnoliophyta (Flowering Plants)
Class	Bivalvia (Bivalvia)	Magnoliopsida (Dicots)
Order	Unionida (Unionida)	Asterales (Daisies & Sunflowers)
Family	Unionidae	Asteraceae (Daisy Family)
Genus	Alasmidonta	Centaurea
Species	Alasmidonta varicosa	Centaurea calcitrapa

Conservation Status

Brook Floater

VU — Vulnerable

star-thistle

EX — Extinct

Physical Characteristics

Attribute	Brook Floater	star-thistle
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.

star-thistle

Habitat

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

Range

Widely distributed across Africa (South Africa), Asia (India, Japan), Europe (18 countries), North America (Canada, Mexico, United States), Oceania and the Pacific (Australia, New Zealand), and South America (Argentina, Brazil, Chile).

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.