Eastern Star-thistle vs Greater knapweed

Centaurea hyalolepis compared with Centaurea scabiosa

Key Differences

• Eastern Star-thistle is Not Evaluated while Greater knapweed is Near Threatened.

Taxonomic Classification

Rank	Eastern Star-thistle	Greater knapweed
Kingdom same	Plantae (planta)	Plantae (planta)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Magnoliopsida (Dicots)	Magnoliopsida (Dicots)
Order same	Asterales (Daisies & Sunflowers)	Asterales (Daisies & Sunflowers)
Family same	Asteraceae (Daisy Family)	Asteraceae (Daisy Family)
Genus same	Centaurea	Centaurea
Species	Centaurea hyalolepis	Centaurea scabiosa

Evolutionary Relationship

Eastern Star-thistle and Greater knapweed share a common ancestor at the Genus level: Centaurea.

Conservation Status

Eastern Star-thistle

NE — Not Evaluated

Greater knapweed

NT — Near Threatened

Physical Characteristics

Attribute	Eastern Star-thistle	Greater knapweed
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Eastern Star-thistle

Habitat

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

Range

Found across Europe (7 countries).

Greater knapweed

Habitat

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

Range

Widely distributed across Europe (7 countries), North America (Canada, United States), and Oceania and the Pacific (Australia). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Shared Countries

Both species can be found in 2 countries:

🇧🇪 Belgium 🇳🇴 Norway