Black Crystalwort vs Blue Bugle

Riccia nigrella compared with Ajuga genevensis

Key Differences

• Black Crystalwort is Not Evaluated while Blue Bugle is Critically Endangered.

Taxonomic Classification

Rank	Black Crystalwort	Blue Bugle
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum	Marchantiophyta (liverwort)	Magnoliophyta (Flowering Plants)
Class	Marchantiopsida (Marchantiopsida)	Magnoliopsida (Dicots)
Order	Marchantiales (Marchantiales)	Lamiales (Lamiales)
Family	Ricciaceae	Lamiaceae
Genus	Riccia	Ajuga
Species	Riccia nigrella	Ajuga genevensis

Evolutionary Relationship

Black Crystalwort and Blue Bugle share a common ancestor at the Kingdom level: Plantae. (Plants)

Conservation Status

Black Crystalwort

NE — Not Evaluated

Blue Bugle

CR — Critically Endangered

Physical Characteristics

Attribute	Black Crystalwort	Blue Bugle
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.

Blue Bugle

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and boreal forests and taiga, among 8 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Uzbekistan), Europe (7 countries), and North America (Canada, United States). Currently classified as Critically Endangered 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.

Blue Bugle

The Blue Bugle (Ajuga genevensis) is a species in the genus Ajuga. It is currently classified as Critically Endangered on the IUCN Red List. Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and boreal forests and taiga, among 8 distinct biome types within the Palearctic biogeographic realm. Populations are also fo

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway