Four-toed Hedgehog vs Ray's Knotgrass

Atelerix albiventris compared with Polygonum oxyspermum

Key Differences

• Four-toed Hedgehog is Least Concern while Ray's Knotgrass is Endangered.

Taxonomic Classification

Rank	Four-toed Hedgehog	Ray's Knotgrass
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Magnoliophyta (Flowering Plants)
Class	Mammalia (Mammals)	Magnoliopsida (Dicots)
Order	Erinaceomorpha (Erinaceomorpha)	Caryophyllales (Caryophyllales)
Family	Erinaceidae	Polygonaceae
Genus	Atelerix	Polygonum
Species	Atelerix albiventris	Polygonum oxyspermum

Conservation Status

Four-toed Hedgehog

LC — Least Concern

Ray's Knotgrass

EN — Endangered

Physical Characteristics

Attribute	Four-toed Hedgehog	Ray's Knotgrass
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Four-toed Hedgehog

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Ecuador and Spain.

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.