Ajuga vs limestone fern

Ajuga reptans compared with Gymnocarpium robertianum

Key Differences

• Ajuga is Endangered while limestone fern is Critically Endangered.

Taxonomic Classification

Rank	Ajuga	limestone fern
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum	Magnoliophyta (Flowering Plants)	Tracheophyta
Class	Magnoliopsida (Dicots)	Polypodiopsida (Polypodiopsida)
Order	Lamiales (Lamiales)	Polypodiales (Polypodiales)
Family	Lamiaceae	Cystopteridaceae
Genus	Ajuga	Gymnocarpium
Species	Ajuga reptans	Gymnocarpium robertianum

Evolutionary Relationship

Ajuga and limestone fern share a common ancestor at the Kingdom level: Plantae. (Plants)

Conservation Status

Ajuga

EN — Endangered

limestone fern

CR — Critically Endangered

Physical Characteristics

Attribute	Ajuga	limestone fern
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Ajuga

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, tundra, and tropical and subtropical moist broadleaf forests, among 11 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (South Africa), Asia (Japan), Europe (6 countries), North America (Canada, United States), Oceania and the Pacific (Australia, New Zealand), and South America (Brazil, Colombia). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

limestone fern

Habitat

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

Range

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

Ajuga

The Ajuga (Ajuga reptans) is a species in the genus Ajuga. It is currently classified as Endangered on the IUCN Red List. Found across multiple habitat types including temperate broadleaf and mixed forests, tundra, and tropical and subtropical moist broadleaf forests, among 11 distinct biome types. Populations are also found in montane and highland environment.

Shared Countries

Both species can be found in 4 countries:

🇧🇪 Belgium 🇨🇦 Canada 🇳🇴 Norway 🇸🇪 Sweden