Blue Bugle vs Threeleaf Halberd Fern

Ajuga genevensis compared with Tectaria trifoliata

Key Differences

• Blue Bugle is Critically Endangered while Threeleaf Halberd Fern is Near Threatened.

Taxonomic Classification

Rank	Blue Bugle	Threeleaf Halberd Fern
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum	Magnoliophyta (Flowering Plants)	Tracheophyta
Class	Magnoliopsida (Dicots)	Polypodiopsida (Polypodiopsida)
Order	Lamiales (Lamiales)	Polypodiales (Polypodiales)
Family	Lamiaceae	Tectariaceae
Genus	Ajuga	Tectaria
Species	Ajuga genevensis	Tectaria trifoliata

Evolutionary Relationship

Blue Bugle and Threeleaf Halberd Fern share a common ancestor at the Kingdom level: Plantae. (Plants)

Conservation Status

Blue Bugle

CR — Critically Endangered

Threeleaf Halberd Fern

NT — Near Threatened

Physical Characteristics

Attribute	Blue Bugle	Threeleaf Halberd Fern
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.

Threeleaf Halberd Fern

Habitat

Typically found in moist, shaded forest floors and tropical canopies.

Range

Distributed across Brazil, Colombia, and Cuba. 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