Blue Bugle vs Rough Stonewort

Ajuga genevensis compared with Chara aspera

Key Differences

• Blue Bugle is Critically Endangered while Rough Stonewort is Near Threatened.

Taxonomic Classification

Rank	Blue Bugle	Rough Stonewort
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum	Magnoliophyta (Flowering Plants)	Charophyta (Charophyta)
Class	Magnoliopsida (Dicots)	Charophyceae (Charophyceae)
Order	Lamiales (Lamiales)	Charales (Charales)
Family	Lamiaceae	Characeae
Genus	Ajuga	Chara
Species	Ajuga genevensis	Chara aspera

Evolutionary Relationship

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

Conservation Status

Blue Bugle

CR — Critically Endangered

Rough Stonewort

NT — Near Threatened

Physical Characteristics

Attribute	Blue Bugle	Rough Stonewort
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

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.

Rough Stonewort

Habitat

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

Range

Distributed across Denmark, Norway, Sweden, and United States. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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 4 countries:

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