Alpine Rock-Cress vs Thread Weed

Arabis alpina compared with Ulva compressa

Taxonomic Classification

Rank	Alpine Rock-Cress	Thread Weed
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum	Magnoliophyta (Flowering Plants)	Chlorophyta (Chlorophyta)
Class	Magnoliopsida (Dicots)	Ulvophyceae (Ulvophyceae)
Order	Brassicales (Brassicales)	Ulvales (Ulvales)
Family	Brassicaceae	Ulvaceae
Genus	Arabis	Ulva
Species	Arabis alpina	Ulva compressa

Evolutionary Relationship

Alpine Rock-Cress and Thread Weed share a common ancestor at the Kingdom level: Plantae. (Plants)

Conservation Status

Alpine Rock-Cress

LC — Least Concern

Thread Weed

LC — Least Concern

Physical Characteristics

Attribute	Alpine Rock-Cress	Thread Weed
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).

Thread Weed

Habitat

Native to Asia and Europe and Oceania, inhabiting ecosystems characteristic of the region.

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), Oceania and the Pacific (New Zealand), and South America (Brazil).

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).

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden