Blue star vs nut fingernailclam

Amsonia orientalis compared with Sphaerium rivicola

Key Differences

• Blue star is Critically Endangered while nut fingernailclam is Not Evaluated.

Taxonomic Classification

Rank	Blue star	nut fingernailclam
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Mollusca (Mollusks)
Class	Magnoliopsida (Dicots)	Bivalvia (Bivalvia)
Order	Gentianales (Gentianales)	Sphaeriida (Sphaeriida)
Family	Apocynaceae	Sphaeriidae
Genus	Amsonia	Sphaerium
Species	Amsonia orientalis	Sphaerium rivicola

Conservation Status

Blue star

CR — Critically Endangered

nut fingernailclam

NE — Not Evaluated

Physical Characteristics

Attribute	Blue star	nut fingernailclam
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blue star

Habitat

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

nut fingernailclam

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Belgium, Denmark, Norway, and Ukraine.

Blue star

The Blue star (Amsonia orientalis) is a species in the genus Amsonia. It is currently classified as Critically Endangered on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.