Blue star vs Rough Star-thistle

Amsonia orientalis compared with Centaurea aspera

Key Differences

• Blue star is Critically Endangered while Rough Star-thistle is Not Evaluated.

Taxonomic Classification

Rank	Blue star	Rough Star-thistle
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Magnoliopsida (Dicots)	Magnoliopsida (Dicots)
Order	Gentianales (Gentianales)	Asterales (Daisies & Sunflowers)
Family	Apocynaceae	Asteraceae (Daisy Family)
Genus	Amsonia	Centaurea
Species	Amsonia orientalis	Centaurea aspera

Evolutionary Relationship

Blue star and Rough Star-thistle share a common ancestor at the Class level: Magnoliopsida. (Dicots)

Conservation Status

Blue star

CR — Critically Endangered

Rough Star-thistle

NE — Not Evaluated

Physical Characteristics

Attribute	Blue star	Rough Star-thistle
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.

Rough Star-thistle

Habitat

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

Range

Widely distributed across Europe (7 countries), North America (United States), and Oceania and the Pacific (Australia).

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.