Dark Stonewort vs Slimy-Fruited Stonewort

Nitella opaca compared with Nitella capillaris

Key Differences

• Dark Stonewort is Least Concern while Slimy-Fruited Stonewort is Endangered.

Taxonomic Classification

Rank	Dark Stonewort	Slimy-Fruited Stonewort
Kingdom same	Plantae (พืช)	Plantae (พืช)
Phylum same	Charophyta (Charophyta)	Charophyta (Charophyta)
Class same	Charophyceae (Charophyceae)	Charophyceae (Charophyceae)
Order same	Charales (Charales)	Charales (Charales)
Family same	Characeae	Characeae
Genus same	Nitella	Nitella
Species	Nitella opaca	Nitella capillaris

Evolutionary Relationship

Dark Stonewort and Slimy-Fruited Stonewort share a common ancestor at the Genus level: Nitella.

Conservation Status

Dark Stonewort

LC — Least Concern

Slimy-Fruited Stonewort

EN — Endangered

Physical Characteristics

Attribute	Dark Stonewort	Slimy-Fruited Stonewort
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Dark Stonewort

Habitat

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

Range

Distributed across Brazil, Denmark, Norway, Sweden, and United States.

Slimy-Fruited Stonewort

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

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

Shared Countries

Both species can be found in 2 countries:

🇳🇴 Norway 🇸🇪 Sweden