Blackstem Spleenwort vs common greasewort

Asplenium resiliens compared with Aneura pinguis

Key Differences

• Blackstem Spleenwort is Not Evaluated while common greasewort is Least Concern.

Taxonomic Classification

Rank	Blackstem Spleenwort	common greasewort
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum	Tracheophyta	Marchantiophyta (liverwort)
Class	Polypodiopsida (Polypodiopsida)	Jungermanniopsida (Jungermanniopsida)
Order	Polypodiales (Polypodiales)	Metzgeriales (Metzgeriales)
Family	Aspleniaceae	Aneuraceae
Genus	Asplenium	Aneura
Species	Asplenium resiliens	Aneura pinguis

Evolutionary Relationship

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

Conservation Status

Blackstem Spleenwort

NE — Not Evaluated

common greasewort

LC — Least Concern

Physical Characteristics

Attribute	Blackstem Spleenwort	common greasewort
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blackstem Spleenwort

Habitat

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

Range

Distributed across Brazil, Colombia, and 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).

Blackstem Spleenwort

The Blackstem Spleenwort (Asplenium resiliens) is a species in the genus Asplenium. Typically found in moist, shaded forest floors and tropical canopies.

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 3 countries:

🇧🇷 Brazil 🇨🇴 Colombia 🇺🇸 United States