cavernous crystalwort vs small tortoiseshell

Riccia cavernosa compared with Aglais urticae

Key Differences

cavernous crystalwort is Endangered while small tortoiseshell is Near Threatened.

Taxonomic Classification

Rank	cavernous crystalwort	small tortoiseshell
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Marchantiophyta (liverwort)	Arthropoda (Arthropods)
Class	Marchantiopsida (Marchantiopsida)	Insecta (Insects)
Order	Marchantiales (Marchantiales)	Lepidoptera (Butterflies & Moths)
Family	Ricciaceae	Nymphalidae (Brush-footed Butterflies)
Genus	Riccia	Aglais
Species	Riccia cavernosa	Aglais urticae

Conservation Status

cavernous crystalwort

EN — Endangered

small tortoiseshell

NT — Near Threatened

Physical Characteristics

Attribute	cavernous crystalwort	small tortoiseshell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

cavernous crystalwort

Habitat

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

Range

Widely distributed across Europe (6 countries), North America (United States), and South America (Brazil). 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.

cavernous crystalwort

The Cavernous crystalwort (Riccia cavernosa) is a species in the genus Riccia. It is currently classified as Endangered on the IUCN Red List. Native to Europe and North America and South America, inhabiting ecosystems characteristic of the region.

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.