Napo Spiny-rat vs Ray's Knotgrass

Proechimys quadruplicatus compared with Polygonum oxyspermum

Key Differences

• Napo Spiny-rat is Least Concern while Ray's Knotgrass is Endangered.

Taxonomic Classification

Rank	Napo Spiny-rat	Ray's Knotgrass
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Magnoliophyta (Flowering Plants)
Class	Mammalia (Mammals)	Magnoliopsida (Dicots)
Order	Rodentia (Rodents)	Caryophyllales (Caryophyllales)
Family	Echimyidae	Polygonaceae
Genus	Proechimys	Polygonum
Species	Proechimys quadruplicatus	Polygonum oxyspermum

Conservation Status

Napo Spiny-rat

LC — Least Concern

Ray's Knotgrass

EN — Endangered

Physical Characteristics

Attribute	Napo Spiny-rat	Ray's Knotgrass
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Napo Spiny-rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, and Venezuela.

Ray's Knotgrass

Habitat

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

Range

Distributed across Denmark, Norway, and Sweden. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.