Least Stonewort vs Slender Stonewort

Nitella confervacea compared with Nitella gracilis

Key Differences

• Least Stonewort is Endangered while Slender Stonewort is Vulnerable.

Taxonomic Classification

Rank	Least Stonewort	Slender 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 confervacea	Nitella gracilis

Evolutionary Relationship

Least Stonewort and Slender Stonewort share a common ancestor at the Genus level: Nitella.

Conservation Status

Least Stonewort

EN — Endangered

Slender Stonewort

VU — Vulnerable

Physical Characteristics

Attribute	Least Stonewort	Slender Stonewort
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Least Stonewort

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

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

Slender Stonewort

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (Denmark, Norway, Sweden), North America (United States), and South America (Brazil). Currently classified as Vulnerable 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