Broken-barred Roller vs Ray's Knotgrass

Ancylis unguicella compared with Polygonum oxyspermum

Key Differences

• Broken-barred Roller is Least Concern while Ray's Knotgrass is Endangered.

Taxonomic Classification

Rank	Broken-barred Roller	Ray's Knotgrass
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Arthropoda (Arthropods)	Magnoliophyta (Flowering Plants)
Class	Insecta (Insects)	Magnoliopsida (Dicots)
Order	Lepidoptera (Butterflies & Moths)	Caryophyllales (Caryophyllales)
Family	Tortricidae	Polygonaceae
Genus	Ancylis	Polygonum
Species	Ancylis unguicella	Polygonum oxyspermum

Conservation Status

Broken-barred Roller

LC — Least Concern

Ray's Knotgrass

EN — Endangered

Physical Characteristics

Attribute	Broken-barred Roller	Ray's Knotgrass
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Broken-barred Roller

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Canada, Denmark, Norway, and Sweden.

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.

Broken-barred Roller

The Broken-Barred Roller (Ancylis unguicella) is a species in the genus Ancylis. It is currently classified as Least Concern on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden