common greasewort vs Floating Fern

Aneura pinguis compared with Salvinia natans

Key Differences

• common greasewort is Least Concern while Floating Fern is Not Evaluated.

Taxonomic Classification

Rank	common greasewort	Floating Fern
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum	Marchantiophyta (liverwort)	Tracheophyta
Class	Jungermanniopsida (Jungermanniopsida)	Polypodiopsida (Polypodiopsida)
Order	Metzgeriales (Metzgeriales)	Salviniales (Salviniales)
Family	Aneuraceae	Salviniaceae
Genus	Aneura	Salvinia
Species	Aneura pinguis	Salvinia natans

Evolutionary Relationship

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

Conservation Status

common greasewort

LC — Least Concern

Floating Fern

NE — Not Evaluated

Physical Characteristics

Attribute	common greasewort	Floating Fern
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

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).

Floating Fern

Habitat

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

Range

Widely distributed across Asia (4 countries), Europe (9 countries), North America (Honduras), and Oceania and the Pacific (Australia).

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 4 countries:

🇧🇪 Belgium 🇳🇴 Norway 🇸🇪 Sweden 🇹🇼 Taiwan