Green String Lettuce vs small tortoiseshell

Ulva linza compared with Aglais urticae

Key Differences

• Green String Lettuce is Least Concern while small tortoiseshell is Near Threatened.

Taxonomic Classification

Rank	Green String Lettuce	small tortoiseshell
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Chlorophyta (Chlorophyta)	Arthropoda (Arthropods)
Class	Ulvophyceae (Ulvophyceae)	Insecta (Insects)
Order	Ulvales (Ulvales)	Lepidoptera (Butterflies & Moths)
Family	Ulvaceae	Nymphalidae (Brush-footed Butterflies)
Genus	Ulva	Aglais
Species	Ulva linza	Aglais urticae

Conservation Status

Green String Lettuce

LC — Least Concern

small tortoiseshell

NT — Near Threatened

Physical Characteristics

Attribute	Green String Lettuce	small tortoiseshell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Green String Lettuce

Habitat

Native to Asia and Europe and South America, inhabiting ecosystems characteristic of the region.

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), and South America (Brazil).

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

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.

Shared Countries

Both species can be found in 4 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇵🇹 Portugal 🇸🇪 Sweden