Brown Rat vs Silvery Crocus

Rattus norvegicus compared with Crocus biflorus

Key Differences

• Brown Rat is Least Concern while Silvery Crocus is Not Evaluated.

Taxonomic Classification

Rank	Brown Rat	Silvery Crocus
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Magnoliophyta (Flowering Plants)
Class	Mammalia (Mammals)	Liliopsida (Monocots)
Order	Rodentia (Rodents)	Asparagales (Asparagales)
Family	Muridae (Mice & Rats)	Iridaceae
Genus	Rattus	Crocus
Species	Rattus norvegicus	Crocus biflorus

Conservation Status

Brown Rat

LC — Least Concern

Silvery Crocus

NE — Not Evaluated

Physical Characteristics

Attribute	Brown Rat	Silvery Crocus
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brown Rat

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 10 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (11 countries), Asia (15 countries), Europe (41 countries), North America (16 countries), Oceania and the Pacific (10 countries), and South America (10 countries).

Silvery Crocus

Habitat

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

Range

Found across Europe (6 countries).

Brown Rat

Brown Rat (Rattus norvegicus) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.

Shared Countries

Both species can be found in 6 countries:

🇧🇪 Belgium 🇫🇷 France 🇳🇱 Netherlands 🇳🇴 Norway 🇸🇪 Sweden 🇬🇧 United Kingdom