Sessile Trillium vs small tortoiseshell

Trillium sessile compared with Aglais urticae

Key Differences

Sessile Trillium is Least Concern while small tortoiseshell is Near Threatened.

Taxonomic Classification

Rank	Sessile Trillium	small tortoiseshell
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Arthropoda (Arthropods)
Class	Liliopsida (Monocots)	Insecta (Insects)
Order	Liliales (Liliales)	Lepidoptera (Butterflies & Moths)
Family	Melanthiaceae	Nymphalidae (Brush-footed Butterflies)
Genus	Trillium	Aglais
Species	Trillium sessile	Aglais urticae

Conservation Status

Sessile Trillium

LC — Least Concern

small tortoiseshell

NT — Near Threatened

Physical Characteristics

Attribute	Sessile Trillium	small tortoiseshell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Sessile Trillium

Habitat

Typically found in grasslands, wetlands, forests, and cultivated landscapes.

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 (Aglais urticae) is classified as Near Threatened (NT) on the IUCN Red List. Close to qualifying as threatened, with populations that may become vulnerable without conservation action.