Alpine Rock-Cress vs Brown Knapweed

Arabis alpina compared with Centaurea jacea

Taxonomic Classification

Rank	Alpine Rock-Cress	Brown Knapweed
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Magnoliopsida (Dicots)	Magnoliopsida (Dicots)
Order	Brassicales (Brassicales)	Asterales (Daisies & Sunflowers)
Family	Brassicaceae	Asteraceae (Daisy Family)
Genus	Arabis	Centaurea
Species	Arabis alpina	Centaurea jacea

Evolutionary Relationship

Alpine Rock-Cress and Brown Knapweed share a common ancestor at the Class level: Magnoliopsida. (Dicots)

Conservation Status

Alpine Rock-Cress

LC — Least Concern

Brown Knapweed

LC — Least Concern

Physical Characteristics

Attribute	Alpine Rock-Cress	Brown Knapweed
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Alpine Rock-Cress

Habitat

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

Range

Widely distributed across Europe (10 countries), North America (Canada, United States), and South America (Argentina).

Brown Knapweed

Habitat

Inhabits deserts and xeric shrublands within the Palearctic biogeographic realm.

Range

Widely distributed across Asia (Japan, Tajikistan), Europe (9 countries), North America (Canada, United States), Oceania and the Pacific (Australia), and South America (Argentina, Chile).

Alpine Rock-Cress

The Alpine Rock-Cress (Arabis alpina) is a species in the genus Arabis. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions. Widely distributed across Europe (10 countries), North America (Canada, United States), and South America (Argentina).

Brown Knapweed

The Brown Knapweed (Centaurea jacea) is a species in the genus Centaurea. It is currently classified as Least Concern on the IUCN Red List. Inhabits deserts and xeric shrublands within the Palearctic biogeographic realm.

Shared Countries

Both species can be found in 10 countries:

🇦🇷 Argentina 🇧🇪 Belgium 🇨🇦 Canada 🇩🇰 Denmark 🇫🇷 France 🇮🇸 Iceland 🇳🇴 Norway 🇸🇪 Sweden 🇬🇧 United Kingdom 🇺🇸 United States