Hard Shield Fern vs Western Sword-fern

Polystichum aculeatum compared with Polystichum munitum

Key Differences

• Hard Shield Fern is Near Threatened while Western Sword-fern is Not Evaluated.

Taxonomic Classification

Rank	Hard Shield Fern	Western Sword-fern
Kingdom same	Plantae (พืช)	Plantae (พืช)
Phylum same	Tracheophyta	Tracheophyta
Class same	Polypodiopsida (Polypodiopsida)	Polypodiopsida (Polypodiopsida)
Order same	Polypodiales (Polypodiales)	Polypodiales (Polypodiales)
Family same	Dryopteridaceae	Dryopteridaceae
Genus same	Polystichum	Polystichum
Species	Polystichum aculeatum	Polystichum munitum

Evolutionary Relationship

Hard Shield Fern and Western Sword-fern share a common ancestor at the Genus level: Polystichum.

Conservation Status

Hard Shield Fern

NT — Near Threatened

Western Sword-fern

NE — Not Evaluated

Physical Characteristics

Attribute	Hard Shield Fern	Western Sword-fern
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Hard Shield Fern

Habitat

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

Range

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

Western Sword-fern

Habitat

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

Range

Found across Europe (6 countries) and North America (Canada).

Shared Countries

Both species can be found in 2 countries:

🇧🇪 Belgium 🇳🇴 Norway