American Shield Fern vs Kammwurmfarn

Dryopteris intermedia compared with Dryopteris cristata

Key Differences

• American Shield Fern is Not Evaluated while Kammwurmfarn is Endangered.

Taxonomic Classification

Rank	American Shield Fern	Kammwurmfarn
Kingdom same	Plantae (Pflanzen)	Plantae (Pflanzen)
Phylum same	Tracheophyta	Tracheophyta
Class same	Polypodiopsida (Echte Farne)	Polypodiopsida (Echte Farne)
Order same	Polypodiales (Tüpfelfarnartige)	Polypodiales (Tüpfelfarnartige)
Family same	Dryopteridaceae	Dryopteridaceae
Genus same	Dryopteris	Dryopteris
Species	Dryopteris intermedia	Dryopteris cristata

Evolutionary Relationship

American Shield Fern and Kammwurmfarn share a common ancestor at the Genus level: Dryopteris.

Conservation Status

American Shield Fern

NE — Not Evaluated

Kammwurmfarn

EN — Endangered

Physical Characteristics

Attribute	American Shield Fern	Kammwurmfarn
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

American Shield Fern

Habitat

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

Range

Distributed across Canada, France, Norway, and United States.

Kammwurmfarn

Habitat

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

Range

Found across Europe (6 countries) and North America (Canada, United States). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

American Shield Fern

The American Shield Fern (Dryopteris intermedia) is a species in the genus Dryopteris. Typically found in moist, shaded forest floors and tropical canopies.

Shared Countries

Both species can be found in 4 countries:

🇨🇦 Canada 🇫🇷 France 🇳🇴 Norway 🇺🇸 United States