Ondatra vs Closed Gentian

Ondatra zibethicus compared with Gentiana rubricaulis

Key Differences

• Ondatra is Not Evaluated while Closed Gentian is Least Concern.

Taxonomic Classification

Rank	Ondatra	Closed Gentian
Kingdom	Animalia (животные)	Plantae (растения)
Phylum	Chordata (хордовые)	Magnoliophyta (магнолиофиты)
Class	Mammalia (млекопитающие)	Magnoliopsida (Dicots)
Order	Rodentia (грызуны)	Gentianales (горечавкоцветные)
Family	Cricetidae	Gentianaceae
Genus	Ondatra	Gentiana
Species	Ondatra zibethicus	Gentiana rubricaulis

Conservation Status

Ondatra

NE — Not Evaluated

Closed Gentian

LC — Least Concern

Physical Characteristics

Attribute	Ondatra	Closed Gentian
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Ondatra

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Widely distributed across Asia (8 countries), Europe (37 countries), North America (United States), and South America (Argentina, Bolivia, Chile).

Closed Gentian

Habitat

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

Range

Distributed across Canada and United States.

Ondatra

The Bisamratte (Ondatra zibethicus) is a species in the genus Ondatra. Typically found in diverse terrestrial and aquatic ecosystems.

Closed Gentian

The closed gentian or bottle gentian (Gentiana andrewsii) is a striking herbaceous perennial in the family Gentianaceae native to eastern and central North America, found from Quebec and New England west to Nebraska and south to Georgia. Unlike most gentians, the deep violet-blue flowers of this species remain permanently closed — the petals fused into a bottle-like shape through which only strong bumblebees, primarily Bombus species, can force entry to access nectar and pollen, making it a specialist of bumblebee pollination. Plants grow 30–60 cm tall in moist prairies, wet meadows, fens, stream banks, and open woodland edges, flowering in late summer and autumn when few other wildflowers are in bloom. The closed flower form prevents small insects from accessing floral rewards while selecting for robust, strong-flying pollinators capable of forcing the petals apart. Closed gentian is declining across its range due to loss of moist prairie and fen habitats, wetland drainage, invasive species competition, and the regional decline of specialist bumblebee pollinators, with which its reproductive success is closely linked.

Shared Countries

Both species can be found in 1 countries:

🇺🇸 United States