floating crystalwort vs Least Crystalwort

Riccia fluitans compared with Riccia subbifurca

Key Differences

• floating crystalwort is Near Threatened while Least Crystalwort is Vulnerable.

Taxonomic Classification

Rank	floating crystalwort	Least Crystalwort
Kingdom same	Plantae (식물)	Plantae (식물)
Phylum same	Marchantiophyta (우산이끼문)	Marchantiophyta (우산이끼문)
Class same	Marchantiopsida (우산이끼강)	Marchantiopsida (우산이끼강)
Order same	Marchantiales (우산이끼목)	Marchantiales (우산이끼목)
Family same	Ricciaceae	Ricciaceae
Genus same	Riccia	Riccia
Species	Riccia fluitans	Riccia subbifurca

Evolutionary Relationship

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

Conservation Status

floating crystalwort

NT — Near Threatened

Least Crystalwort

VU — Vulnerable

Physical Characteristics

Attribute	floating crystalwort	Least Crystalwort
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic 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.

Least Crystalwort

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Belgium, Luxembourg, Norway, Portugal, and Sweden. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Shared Countries

Both species can be found in 4 countries:

🇧🇪 Belgium 🇱🇺 Luxembourg 🇳🇴 Norway 🇸🇪 Sweden