Black Crystalwort vs Least Crystalwort

Riccia nigrella compared with Riccia subbifurca

Key Differences

• Black Crystalwort is Not Evaluated while Least Crystalwort is Vulnerable.

Taxonomic Classification

Rank	Black Crystalwort	Least 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 nigrella	Riccia subbifurca

Evolutionary Relationship

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

Conservation Status

Black Crystalwort

NE — Not Evaluated

Least Crystalwort

VU — Vulnerable

Physical Characteristics

Attribute	Black Crystalwort	Least Crystalwort
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black Crystalwort

Habitat

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

Range

Distributed across Chile, Japan, New Zealand, Norway, and Portugal.

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.

Black Crystalwort

The Black Crystalwort (Riccia nigrella) is a species in the genus Riccia. Native to Asia and Europe and Oceania, inhabiting ecosystems characteristic of the region. Distributed across Chile, Japan, New Zealand, Norway, and Portugal.

Shared Countries

Both species can be found in 2 countries:

🇳🇴 Norway 🇵🇹 Portugal