Brown Rat vs rough corn bedstraw, corn cleavers

Rattus norvegicus compared with Galium tricornutum

Key Differences

• Brown Rat is Least Concern while rough corn bedstraw, corn cleavers is Critically Endangered.

Taxonomic Classification

Rank	Brown Rat	rough corn bedstraw, corn cleavers
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Magnoliophyta (Flowering Plants)
Class	Mammalia (Mammals)	Magnoliopsida (Dicots)
Order	Rodentia (Rodents)	Gentianales (Gentianales)
Family	Muridae (Mice & Rats)	Rubiaceae
Genus	Rattus	Galium
Species	Rattus norvegicus	Galium tricornutum

Conservation Status

Brown Rat

LC — Least Concern

rough corn bedstraw, corn cleavers

CR — Critically Endangered

Physical Characteristics

Attribute	Brown Rat	rough corn bedstraw, corn cleavers
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).

rough corn bedstraw, corn cleavers

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and temperate broadleaf and mixed forests, among 12 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Japan, Qatar), Europe (18 countries), North America (Canada, United States), Oceania and the Pacific (Australia), and South America (Brazil, Chile). Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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 24 countries:

🇦🇺 Australia 🇧🇾 Belarus 🇧🇪 Belgium 🇧🇷 Brazil 🇧🇬 Bulgaria 🇨🇦 Canada 🇨🇱 Chile 🇨🇿 Czech Republic 🇩🇰 Denmark 🇪🇪 Estonia 🇫🇷 France 🇩🇪 Germany 🇮🇪 Ireland 🇯🇵 Japan 🇳🇱 Netherlands 🇳🇴 Norway 🇵🇱 Poland 🇵🇹 Portugal 🇷🇺 Russia 🇸🇰 Slovakia 🇸🇪 Sweden 🇺🇦 Ukraine 🇬🇧 United Kingdom 🇺🇸 United States