Black Crystalwort vs Bloodwort

Riccia nigrella compared with Achillea millefolium

Key Differences

• Black Crystalwort is Not Evaluated while Bloodwort is Least Concern.

Taxonomic Classification

Rank	Black Crystalwort	Bloodwort
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum	Marchantiophyta (liverwort)	Magnoliophyta (Flowering Plants)
Class	Marchantiopsida (Marchantiopsida)	Magnoliopsida (Dicots)
Order	Marchantiales (Marchantiales)	Asterales (Daisies & Sunflowers)
Family	Ricciaceae	Asteraceae (Daisy Family)
Genus	Riccia	Achillea
Species	Riccia nigrella	Achillea millefolium

Evolutionary Relationship

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

Conservation Status

Black Crystalwort

NE — Not Evaluated

Bloodwort

LC — Least Concern

Physical Characteristics

Attribute	Black Crystalwort	Bloodwort
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.

Bloodwort

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and flooded grasslands and savannas, among 11 distinct biome types spanning the Indomalayan and Neotropic and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (South Africa), Asia (4 countries), Europe (10 countries), North America (5 countries), Oceania and the Pacific (Australia), and South America (4 countries).

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.

Bloodwort

The Bloodwort (Achillea millefolium) is a species in the genus Achillea. It is currently classified as Least Concern on the IUCN Red List. Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and flooded grasslands and savannas, among 11 distinct biome types spanning the Indomalayan and Neotropic and Palearctic real

Shared Countries

Both species can be found in 4 countries:

🇨🇱 Chile 🇯🇵 Japan 🇳🇴 Norway 🇵🇹 Portugal