cavernous crystalwort vs floating crystalwort

Riccia cavernosa compared with Riccia fluitans

Key Differences

• cavernous crystalwort is Endangered while floating crystalwort is Near Threatened.

Taxonomic Classification

Rank	cavernous crystalwort	floating crystalwort
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum same	Marchantiophyta (liverwort)	Marchantiophyta (liverwort)
Class same	Marchantiopsida (Marchantiopsida)	Marchantiopsida (Marchantiopsida)
Order same	Marchantiales (Marchantiales)	Marchantiales (Marchantiales)
Family same	Ricciaceae	Ricciaceae
Genus same	Riccia	Riccia
Species	Riccia cavernosa	Riccia fluitans

Evolutionary Relationship

cavernous crystalwort and floating crystalwort share a common ancestor at the Genus level: Riccia.

Conservation Status

cavernous crystalwort

EN — Endangered

floating crystalwort

NT — Near Threatened

Physical Characteristics

Attribute	cavernous crystalwort	floating crystalwort
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.

floating crystalwort

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (7 countries), North America (United States), and South America (Chile). 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.

Shared Countries

Both species can be found in 6 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇱🇺 Luxembourg 🇳🇴 Norway 🇸🇪 Sweden 🇺🇸 United States