Blue Bugle vs Lesser Star-thistle

Ajuga genevensis compared with Centaurea diluta

Key Differences

• Blue Bugle is Critically Endangered while Lesser Star-thistle is Not Evaluated.

Taxonomic Classification

Rank	Blue Bugle	Lesser Star-thistle
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Magnoliopsida (Dicots)	Magnoliopsida (Dicots)
Order	Lamiales (Lamiales)	Asterales (Daisies & Sunflowers)
Family	Lamiaceae	Asteraceae (Daisy Family)
Genus	Ajuga	Centaurea
Species	Ajuga genevensis	Centaurea diluta

Evolutionary Relationship

Blue Bugle and Lesser Star-thistle share a common ancestor at the Class level: Magnoliopsida. (Dicots)

Conservation Status

Blue Bugle

CR — Critically Endangered

Lesser Star-thistle

NE — Not Evaluated

Physical Characteristics

Attribute	Blue Bugle	Lesser Star-thistle
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.

Lesser Star-thistle

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Found across Europe (11 countries) and North America (United States).

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 5 countries:

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