Amphibious Watercress vs Marsh Cress

Rorippa amphibia compared with Rorippa islandica

Key Differences

• Amphibious Watercress is Least Concern while Marsh Cress is Endangered.

Taxonomic Classification

Rank	Amphibious Watercress	Marsh Cress
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Magnoliopsida (Dicots)	Magnoliopsida (Dicots)
Order same	Brassicales (Brassicales)	Brassicales (Brassicales)
Family same	Brassicaceae	Brassicaceae
Genus same	Rorippa	Rorippa
Species	Rorippa amphibia	Rorippa islandica

Evolutionary Relationship

Amphibious Watercress and Marsh Cress share a common ancestor at the Genus level: Rorippa.

Conservation Status

Amphibious Watercress

LC — Least Concern

Marsh Cress

EN — Endangered

Physical Characteristics

Attribute	Amphibious Watercress	Marsh Cress
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Amphibious Watercress

Habitat

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

Range

Widely distributed across Asia (Japan), Europe (6 countries), and North America (Canada, United States).

Marsh Cress

Habitat

Found across multiple habitat types including boreal forests and taiga, flooded grasslands and savannas, and Mediterranean forests and woodlands, among 4 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (Libya), Asia (India), Europe (Iceland, Norway, Sweden), and North America (Canada, Mexico, United States). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Amphibious Watercress

The Amphibious Watercress (Rorippa amphibia) is a species in the genus Rorippa. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Shared Countries

Both species can be found in 4 countries:

🇨🇦 Canada 🇳🇴 Norway 🇸🇪 Sweden 🇺🇸 United States