Alpine Rock-Cress vs Craighead’s Noddingcaps

Arabis alpina compared with Triphora craigheadii

Key Differences

• Alpine Rock-Cress is Least Concern while Craighead’s Noddingcaps is Endangered.

Taxonomic Classification

Rank	Alpine Rock-Cress	Craighead’s Noddingcaps
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class	Magnoliopsida (Dicots)	Liliopsida (Monocots)
Order	Brassicales (Brassicales)	Asparagales (Asparagales)
Family	Brassicaceae	Orchidaceae
Genus	Arabis	Triphora
Species	Arabis alpina	Triphora craigheadii

Evolutionary Relationship

Alpine Rock-Cress and Craighead’s Noddingcaps share a common ancestor at the Phylum level: Magnoliophyta. (Flowering Plants)

Conservation Status

Alpine Rock-Cress

LC — Least Concern

Craighead’s Noddingcaps

EN — Endangered

Physical Characteristics

Attribute	Alpine Rock-Cress	Craighead’s Noddingcaps
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).

Craighead’s Noddingcaps

Habitat

Typically found in grasslands, wetlands, forests, and cultivated landscapes.

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).