Alpine Rock-Cress vs Common Orache

Arabis alpina compared with Atriplex patula

Taxonomic Classification

Rank	Alpine Rock-Cress	Common Orache
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Magnoliopsida (Dicots)	Magnoliopsida (Dicots)
Order	Brassicales (Brassicales)	Caryophyllales (Caryophyllales)
Family	Brassicaceae	Amaranthaceae
Genus	Arabis	Atriplex
Species	Arabis alpina	Atriplex patula

Evolutionary Relationship

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

Conservation Status

Alpine Rock-Cress

LC — Least Concern

Common Orache

LC — Least Concern

Physical Characteristics

Attribute	Alpine Rock-Cress	Common Orache
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).

Common Orache

Habitat

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

Range

Widely distributed across Asia (Georgia), Europe (13 countries), North America (Canada, Mexico, United States), Oceania and the Pacific (Australia), and South America (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).

Common Orache

<em>Atriplex patula</em> is an annual herb in the family Amaranthaceae, distributed across Europe, Asia, North America, Australia, and Chile. It typically colonizes disturbed habitats, coastal areas, salt marshes, roadsides, agricultural fields, and waste ground, tolerating saline soils that many other species cannot withstand. The species is halophytic, possessing physiological adaptations for salt tolerance, including salt-excreting glands on its leaves. Its range extends across Georgia in Asia, thirteen European countries, and introduced populations in North America, Australia, and South America. Orache produces small, inconspicuous flowers and characteristic mealy-textured leaves. It is sometimes used as a leafy vegetable in traditional cuisine across parts of its native range. The IUCN lists this species as Least Concern given its widespread occurrence and adaptability to multiple habitat types. Biological traits including average lifespan, body measurements, and detailed dietary ecology remain poorly documented in standardized databases for this weedy annual species. <em>Atriplex patula</em> plays a functional role in stabilizing disturbed soils and contributing to coastal and ruderal plant communities across its broad distribution.

Shared Countries

Both species can be found in 9 countries:

🇧🇪 Belgium 🇨🇦 Canada 🇨🇿 Czech Republic 🇩🇰 Denmark 🇫🇷 France 🇮🇸 Iceland 🇳🇴 Norway 🇸🇪 Sweden 🇺🇸 United States