polystic de Braun vs polystic à aiguillons

Polystichum braunii compared with Polystichum aculeatum

Key Differences

• polystic de Braun is Critically Endangered while polystic à aiguillons is Near Threatened.

Taxonomic Classification

Rank	polystic de Braun	polystic à aiguillons
Kingdom same	Plantae (plante)	Plantae (plante)
Phylum same	Tracheophyta	Tracheophyta
Class same	Polypodiopsida (Filicopsida)	Polypodiopsida (Filicopsida)
Order same	Polypodiales (Polypodiales)	Polypodiales (Polypodiales)
Family same	Dryopteridaceae	Dryopteridaceae
Genus same	Polystichum	Polystichum
Species	Polystichum braunii	Polystichum aculeatum

Evolutionary Relationship

polystic de Braun and polystic à aiguillons share a common ancestor at the Genus level: Polystichum.

Conservation Status

polystic de Braun

CR — Critically Endangered

polystic à aiguillons

NT — Near Threatened

Physical Characteristics

Attribute	polystic de Braun	polystic à aiguillons
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

polystic de Braun

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and Mediterranean forests and woodlands within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found across Europe (4 countries) and North America (Canada, United States). Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

polystic à aiguillons

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.

polystic de Braun

The Braun'S Holly Fern (Polystichum braunii) is a species in the genus Polystichum. It is currently classified as Critically Endangered on the IUCN Red List. Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and Mediterranean forests and woodlands within the Palearctic biogeographic realm. Populations are also found in montane and

Shared Countries

Both species can be found in 4 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden 🇺🇸 United States