common greasewort vs Common mediterranean grass

Aneura pinguis compared with Schismus barbatus

Key Differences

• common greasewort is Least Concern while Common mediterranean grass is Not Evaluated.

Taxonomic Classification

Rank	common greasewort	Common mediterranean grass
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum	Marchantiophyta (liverwort)	Magnoliophyta (Flowering Plants)
Class	Jungermanniopsida (Jungermanniopsida)	Liliopsida (Monocots)
Order	Metzgeriales (Metzgeriales)	Poales (Grasses)
Family	Aneuraceae	Poaceae (Grass Family)
Genus	Aneura	Schismus
Species	Aneura pinguis	Schismus barbatus

Evolutionary Relationship

common greasewort and Common mediterranean grass share a common ancestor at the Kingdom level: Plantae. (Plants)

Conservation Status

common greasewort

LC — Least Concern

Common mediterranean grass

NE — Not Evaluated

Physical Characteristics

Attribute	common greasewort	Common mediterranean grass
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).

Common mediterranean grass

Habitat

Typically found in grasslands, wetlands, forests, and cultivated landscapes.

Range

Widely distributed across Europe (8 countries), North America (Mexico, United States), Oceania and the Pacific (Australia), and South America (Argentina, Chile).

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.

Common mediterranean grass

<em>Schismus barbatus</em>, the common Mediterranean grass, is an annual grass in the family Poaceae, native to the Mediterranean Basin and now naturalized across Europe, North America, Oceania, and South America. It has not been formally evaluated by the IUCN. This species typically colonizes disturbed, arid, and semi-arid environments including grasslands, open shrublands, roadsides, and degraded habitats. It also occurs in wetland margins and open forest understories across parts of its introduced range. Common Mediterranean grass is a small, tufted annual that completes its life cycle rapidly following winter or spring rains, making it well-adapted to seasonally dry climates. Its spread as an introduced weed in arid regions of North America and Australia has raised ecological concerns, as dense populations can alter fire regimes and suppress native annual plant communities. The species is highly drought-tolerant and produces abundant small seeds that facilitate rapid dispersal. Its precise biological traits including average lifespan measurements and growth dimensions remain incompletely characterized across its broad introduced range.

Shared Countries

Both species can be found in 4 countries:

🇧🇪 Belgium 🇵🇹 Portugal 🇸🇪 Sweden 🇺🇸 United States