Black-shouldered Opossum vs Common Woodrush

Caluromysiops irrupta compared with Luzula campestris

Taxonomic Classification

Rank	Black-shouldered Opossum	Common Woodrush
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Magnoliophyta (Flowering Plants)
Class	Mammalia (Mammals)	Liliopsida (Monocots)
Order	Didelphimorphia (Didelphimorphia)	Poales (Grasses)
Family	Didelphidae	Juncaceae
Genus	Caluromysiops	Luzula
Species	Caluromysiops irrupta	Luzula campestris

Conservation Status

Black-shouldered Opossum

LC — Least Concern

Common Woodrush

LC — Least Concern

Physical Characteristics

Attribute	Black-shouldered Opossum	Common Woodrush
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black-shouldered Opossum

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Colombia.

Common Woodrush

Habitat

Inhabits tropical and subtropical moist broadleaf forests within the Neotropic biogeographic realm.

Range

Widely distributed across Europe (6 countries), North America (Canada, Costa Rica, United States), Oceania and the Pacific (Australia), and South America (Chile).

Black-shouldered Opossum

The Black-shouldered Opossum (Caluromysiops irrupta) is a species in the genus Caluromysiops. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

Common Woodrush

<em>Luzula campestris</em>, the common woodrush or field woodrush, is a small perennial plant in the family Juncaceae. It is widespread across Europe, western Asia, and northern Africa, with naturalized populations established in parts of North America and other temperate regions. The species typically colonizes short grasslands, heathlands, lawns, roadside verges, and open woodland clearings, preferring slightly acidic, well-drained soils with low nutrient levels. Plants form low, tufted rosettes of narrow, grass-like leaves fringed with long white hairs, a diagnostic feature of the genus. Flowering stems reach 5–30 cm and bear nodding, chestnut-brown flower clusters in early spring, making it one of the earlier flowering grassland plants. Biological traits such as precise lifespan, body dimensions, and detailed weight data remain poorly documented at the species level. <em>Luzula campestris</em> is an important indicator of ancient, unimproved grassland habitats in Britain and Europe, and its presence is often associated with high botanical diversity. It is assessed as Least Concern, reflecting stable populations across its native range, though localized declines may occur where intensive agriculture reduces suitable habitat.