Alpine Rock-Cress vs Bitter Scalewort

Arabis alpina compared with Porella arboris-vitae

Key Differences

• Alpine Rock-Cress is Least Concern while Bitter Scalewort is Vulnerable.

Taxonomic Classification

Rank	Alpine Rock-Cress	Bitter Scalewort
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum	Magnoliophyta (Flowering Plants)	Marchantiophyta (liverwort)
Class	Magnoliopsida (Dicots)	Jungermanniopsida (Jungermanniopsida)
Order	Brassicales (Brassicales)	Porellales (Porellales)
Family	Brassicaceae	Porellaceae
Genus	Arabis	Porella
Species	Arabis alpina	Porella arboris-vitae

Evolutionary Relationship

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

Conservation Status

Alpine Rock-Cress

LC — Least Concern

Bitter Scalewort

VU — Vulnerable

Physical Characteristics

Attribute	Alpine Rock-Cress	Bitter Scalewort
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).

Bitter Scalewort

Habitat

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

Range

Found across Asia (Taiwan) and Europe (5 countries). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

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).

Bitter Scalewort

The Bitter Scalewort (Porella arboris-vitae) is a species in the genus Porella. It is currently classified as Vulnerable on the IUCN Red List. Native to Asia and Europe, inhabiting ecosystems characteristic of the region.

Shared Countries

Both species can be found in 4 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden