Black-stemmed Goldendrop vs Polynesian rat

Onosma nigricaulis compared with Rattus exulans

Key Differences

• Black-stemmed Goldendrop is Critically Endangered while Polynesian rat is Least Concern.

Taxonomic Classification

Rank	Black-stemmed Goldendrop	Polynesian rat
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (Chordates)
Class	Magnoliopsida (Dicots)	Mammalia (Mammals)
Order	Boraginales (Boraginales)	Rodentia (Rodents)
Family	Boraginaceae	Muridae (Mice & Rats)
Genus	Onosma	Rattus
Species	Onosma nigricaulis	Rattus exulans

Conservation Status

Black-stemmed Goldendrop

CR — Critically Endangered

Polynesian rat

LC — Least Concern

Physical Characteristics

Attribute	Black-stemmed Goldendrop	Polynesian rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black-stemmed Goldendrop

Habitat

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

Polynesian rat

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical coniferous forests, among 4 distinct biome types spanning the Australasia and Indomalayan realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (6 countries), Europe (United Kingdom), North America (United States), Oceania and the Pacific (11 countries), and South America (Chile).

Black-stemmed Goldendrop

The Black-stemmed Goldendrop (Onosma nigricaulis) is a species in the genus Onosma. It is currently classified as Critically Endangered on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.