Centric diatom vs common greasewort

Skeletonema subsalsum compared with Aneura pinguis

Key Differences

• Centric diatom is Not Evaluated while common greasewort is Least Concern.

Taxonomic Classification

Rank	Centric diatom	common greasewort
Kingdom	Chromista (Chromista)	Plantae (Plants)
Phylum	Ochrophyta (Ochrophyta)	Marchantiophyta (liverwort)
Class	Bacillariophyceae (Bacillariophyceae)	Jungermanniopsida (Jungermanniopsida)
Order	Thalassiosirales (Thalassiosirales)	Metzgeriales (Metzgeriales)
Family	Skeletonemaceae	Aneuraceae
Genus	Skeletonema	Aneura
Species	Skeletonema subsalsum	Aneura pinguis

Conservation Status

Centric diatom

NE — Not Evaluated

common greasewort

LC — Least Concern

Physical Characteristics

Attribute	Centric diatom	common greasewort
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Centric diatom

Habitat

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

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).

Centric diatom

The Centric Diatom (Skeletonema subsalsum) is a species in the genus Skeletonema. Found across Europe (7 countries) and North America (United States).

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:

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