Brown Rat vs Common Sundrops

Rattus norvegicus compared with Oenothera fruticosa

Key Differences

• Brown Rat is Least Concern while Common Sundrops is Not Evaluated.

Taxonomic Classification

Rank	Brown Rat	Common Sundrops
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Magnoliophyta (Flowering Plants)
Class	Mammalia (Mammals)	Magnoliopsida (Dicots)
Order	Rodentia (Rodents)	Myrtales (Myrtales)
Family	Muridae (Mice & Rats)	Onagraceae
Genus	Rattus	Oenothera
Species	Rattus norvegicus	Oenothera fruticosa

Conservation Status

Brown Rat

LC — Least Concern

Common Sundrops

NE — Not Evaluated

Physical Characteristics

Attribute	Brown Rat	Common Sundrops
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).

Common Sundrops

Habitat

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

Range

Distributed across Czech Republic, Japan, Norway, Sweden, and United States.

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.

Common Sundrops

<em>Oenothera fruticosa</em>, the common sundrops, is a perennial flowering plant in the family Onagraceae, order Myrtales. It is native to eastern North America and has been introduced and naturalized in parts of Europe, including Czech Republic, Norway, and Sweden, as well as in Japan. The species typically inhabits open, sunny habitats such as meadows, roadsides, dry slopes, and disturbed areas, preferring well-drained soils. <em>Oenothera fruticosa</em> bears bright yellow, four-petalled flowers that bloom in late spring and early summer, attracting a range of pollinators including bees and butterflies. Unlike many evening primroses in the genus, sundrops are day-blooming. The plant spreads both by seed and by vegetative runners, forming colonies in suitable habitat. Biological traits including average individual lifespan, precise height measurements, and specific herbivore associations remain poorly documented at the species level. <em>Oenothera fruticosa</em> has not been formally assessed by the IUCN, though it is generally considered a locally common species without significant conservation concerns, and its naturalized populations in Europe are typically stable.

Shared Countries

Both species can be found in 5 countries:

🇨🇿 Czech Republic 🇯🇵 Japan 🇳🇴 Norway 🇸🇪 Sweden 🇺🇸 United States