Alpine Knapweed vs brittlestar

Centaurea nigrescens compared with Amphiura filiformis

Key Differences

• Alpine Knapweed is Not Evaluated while brittlestar is Least Concern.

Taxonomic Classification

Rank	Alpine Knapweed	brittlestar
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Echinodermata (Echinoderms)
Class	Magnoliopsida (Dicots)	Ophiuroidea (Ophiuroidea)
Order	Asterales (Daisies & Sunflowers)	Amphilepidida (Amphilepidida)
Family	Asteraceae (Daisy Family)	Amphiuridae
Genus	Centaurea	Amphiura
Species	Centaurea nigrescens	Amphiura filiformis

Conservation Status

Alpine Knapweed

NE — Not Evaluated

brittlestar

LC — Least Concern

Physical Characteristics

Attribute	Alpine Knapweed	brittlestar
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Alpine Knapweed

Habitat

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

Range

Widely distributed across Europe (11 countries), North America (Canada, United States), and Oceania and the Pacific (Australia).

brittlestar

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden.

Alpine Knapweed

The Alpine Knapweed (Centaurea nigrescens) is a species in the genus Centaurea. Typically found in diverse terrestrial habitats from tropical forests to temperate regions. Widely distributed across Europe (11 countries), North America (Canada, United States), and Oceania and the Pacific (Australia).

brittlestar

The Brittlestar (Amphiura filiformis) is a species in the genus Amphiura. It is currently classified as Least Concern on the IUCN Red List. Native to Europe, inhabiting ecosystems characteristic of the region.

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden