Dark Stonewort vs Smooth Stonewort

Nitella opaca compared with Nitella flexilis

Taxonomic Classification

Rank	Dark Stonewort	Smooth Stonewort
Kingdom same	Plantae (Plants)	Plantae (Plants)
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 flexilis

Evolutionary Relationship

Dark Stonewort and Smooth Stonewort share a common ancestor at the Genus level: Nitella.

Conservation Status

Dark Stonewort

LC — Least Concern

Smooth Stonewort

LC — Least Concern

Physical Characteristics

Attribute	Dark Stonewort	Smooth 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.

Smooth 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.

Shared Countries

Both species can be found in 5 countries:

🇧🇷 Brazil 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden 🇺🇸 United States