Adder'S Fern vs common greasewort

Polypodium vulgare compared with Aneura pinguis

Taxonomic Classification

Rank	Adder'S Fern	common greasewort
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum	Tracheophyta	Marchantiophyta (liverwort)
Class	Polypodiopsida (Polypodiopsida)	Jungermanniopsida (Jungermanniopsida)
Order	Polypodiales (Polypodiales)	Metzgeriales (Metzgeriales)
Family	Polypodiaceae	Aneuraceae
Genus	Polypodium	Aneura
Species	Polypodium vulgare	Aneura pinguis

Evolutionary Relationship

Adder'S Fern and common greasewort share a common ancestor at the Kingdom level: Plantae. (Plants)

Conservation Status

Adder'S Fern

LC — Least Concern

common greasewort

LC — Least Concern

Physical Characteristics

Attribute	Adder'S Fern	common greasewort
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Adder'S Fern

Habitat

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

Range

Found across Europe (7 countries) and North America (United States).

common greasewort

Habitat

Native to Asia and Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Widely distributed across Asia (Taiwan), Europe (6 countries), North America (United States), and South America (Brazil, Colombia).

Adder'S Fern

The Adder'S Fern (Polypodium vulgare) is a species in the genus Polypodium. It is currently classified as Least Concern on the IUCN Red List. This species inhabits Typically found in moist, shaded forest floors and tropical canopies, found across Belgium, Denmark, Finland, Iceland, and Norway.

common greasewort

<em>Aneura pinguis</em>, commonly known as common greasewort, is a liverwort belonging to the genus Aneura within the family Aneuraceae. This cryptogamic plant inhabits ecosystems across Asia, Europe, and North America, thriving in moist or waterlogged environments. Its range encompasses Taiwan in Asia, six European countries, the United States in North America, and Brazil and Colombia in South America, indicating a broad geographic distribution across multiple continents. Common greasewort is assessed as Least Concern on the IUCN Red List. The species typically forms flat, ribbon-like thalli in damp habitats such as stream banks, wet rocks, and boggy ground. Biological traits of this species remain poorly documented in the scientific literature.

Shared Countries

Both species can be found in 6 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇵🇹 Portugal 🇸🇪 Sweden 🇺🇸 United States