Alder vs Marsh Cress

Alnus glutinosa compared with Rorippa islandica

Key Differences

• Alder is Least Concern while Marsh Cress is Endangered.

Taxonomic Classification

Rank	Alder	Marsh Cress
Kingdom same	Plantae (растения)	Plantae (растения)
Phylum same	Magnoliophyta (магнолиофиты)	Magnoliophyta (магнолиофиты)
Class same	Magnoliopsida (Dicots)	Magnoliopsida (Dicots)
Order	Fagales (букоцветные)	Brassicales (капустоцветные)
Family	Betulaceae	Brassicaceae
Genus	Alnus	Rorippa
Species	Alnus glutinosa	Rorippa islandica

Evolutionary Relationship

Alder and Marsh Cress share a common ancestor at the Class level: Magnoliopsida. (Dicots)

Conservation Status

Alder

LC — Least Concern

Marsh Cress

EN — Endangered

Physical Characteristics

Attribute	Alder	Marsh Cress
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Alder

Habitat

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

Range

Widely distributed across Africa (South Africa), Asia (India, Japan), Europe (6 countries), North America (Canada, United States), Oceania and the Pacific (Australia, New Zealand), and South America (Chile).

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.

Alder

The Alder (Alnus glutinosa) is a species in the genus Alnus. 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 5 countries:

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