Alpine Rock-Cress vs Small Adder's-Tongue

Arabis alpina compared with Ophioglossum azoricum

Key Differences

• Alpine Rock-Cress is Least Concern while Small Adder's-Tongue is Critically Endangered.

Taxonomic Classification

Rank	Alpine Rock-Cress	Small Adder's-Tongue
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum	Magnoliophyta (Flowering Plants)	Tracheophyta
Class	Magnoliopsida (Dicots)	Polypodiopsida (Polypodiopsida)
Order	Brassicales (Brassicales)	Ophioglossales (Ophioglossales)
Family	Brassicaceae	Ophioglossaceae
Genus	Arabis	Ophioglossum
Species	Arabis alpina	Ophioglossum azoricum

Evolutionary Relationship

Alpine Rock-Cress and Small Adder's-Tongue share a common ancestor at the Kingdom level: Plantae. (Plants)

Conservation Status

Alpine Rock-Cress

LC — Least Concern

Small Adder's-Tongue

CR — Critically Endangered

Physical Characteristics

Attribute	Alpine Rock-Cress	Small Adder's-Tongue
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).

Small Adder's-Tongue

Habitat

Inhabits boreal forests and taiga within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Belgium, Iceland, Norway, Portugal, and Sweden. Currently classified as Critically Endangered 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).

Shared Countries

Both species can be found in 4 countries:

🇧🇪 Belgium 🇮🇸 Iceland 🇳🇴 Norway 🇸🇪 Sweden