Northern Adder'S-Tongue vs Small Adder's-Tongue

Ophioglossum pusillum compared with Ophioglossum azoricum

Key Differences

• Northern Adder'S-Tongue is Not Evaluated while Small Adder's-Tongue is Critically Endangered.

Taxonomic Classification

Rank	Northern Adder'S-Tongue	Small Adder's-Tongue
Kingdom same	Plantae (พืช)	Plantae (พืช)
Phylum same	Tracheophyta	Tracheophyta
Class same	Polypodiopsida (Polypodiopsida)	Polypodiopsida (Polypodiopsida)
Order same	Ophioglossales (Ophioglossales)	Ophioglossales (Ophioglossales)
Family same	Ophioglossaceae	Ophioglossaceae
Genus same	Ophioglossum	Ophioglossum
Species	Ophioglossum pusillum	Ophioglossum azoricum

Evolutionary Relationship

Northern Adder'S-Tongue and Small Adder's-Tongue share a common ancestor at the Genus level: Ophioglossum.

Conservation Status

Northern Adder'S-Tongue

NE — Not Evaluated

Small Adder's-Tongue

CR — Critically Endangered

Physical Characteristics

Attribute	Northern Adder'S-Tongue	Small Adder's-Tongue
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Northern Adder'S-Tongue

Habitat

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

Range

Distributed across Canada, France, and United States.

Small Adder's-Tongue

Habitat

Inhabits boreal forests and taiga within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

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