Hard Shield Fern vs Kadyrov's Shield Fern

Polystichum aculeatum compared with Polystichum kadyrovii

Taxonomic Classification

Rank	Hard Shield Fern	Kadyrov's Shield Fern
Kingdom same	Plantae (Plants)	Plantae (Plants)
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 kadyrovii

Evolutionary Relationship

Hard Shield Fern and Kadyrov's Shield Fern share a common ancestor at the Genus level: Polystichum.

Conservation Status

Hard Shield Fern

NT — Near Threatened

Kadyrov's Shield Fern

NT — Near Threatened

Physical Characteristics

Attribute	Hard Shield Fern	Kadyrov's Shield 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.

Kadyrov's Shield Fern

Habitat

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