Ray's Knotgrass vs small tortoiseshell

Polygonum oxyspermum compared with Aglais urticae

Key Differences

• Ray's Knotgrass is Endangered while small tortoiseshell is Near Threatened.

Taxonomic Classification

Rank	Ray's Knotgrass	small tortoiseshell
Kingdom	Plantae (植物)	Animalia (動物)
Phylum	Magnoliophyta (被子植物門)	Arthropoda (節足動物)
Class	Magnoliopsida (モクレン綱)	Insecta (昆虫)
Order	Caryophyllales (ナデシコ目)	Lepidoptera (チョウ目)
Family	Polygonaceae	Nymphalidae (Brush-footed Butterflies)
Genus	Polygonum	Aglais
Species	Polygonum oxyspermum	Aglais urticae

Conservation Status

Ray's Knotgrass

EN — Endangered

small tortoiseshell

NT — Near Threatened

Physical Characteristics

Attribute	Ray's Knotgrass	small tortoiseshell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

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.

small tortoiseshell

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (41 countries). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

small tortoiseshell

スモールトータスシェル(Aglais urticae)はIUCNレッドリストで準絶滅危惧(NT)に分類されている。絶滅危惧種に分類される一歩手前の段階で、保全措置がなければ脆弱になる可能性のある個体群を持つ。

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden