Black Tooth vs common greasewort

Phellodon niger compared with Aneura pinguis

Key Differences

Black Tooth is Critically Endangered while common greasewort is Least Concern.

Taxonomic Classification

Rank	Black Tooth	common greasewort
Kingdom	Fungi (Fungi)	Plantae (Plants)
Phylum	Basidiomycota (Club Fungi)	Marchantiophyta (liverwort)
Class	Agaricomycetes (Mushrooms)	Jungermanniopsida (Jungermanniopsida)
Order	Thelephorales (Thelephorales)	Metzgeriales (Metzgeriales)
Family	Thelephoraceae	Aneuraceae
Genus	Phellodon	Aneura
Species	Phellodon niger	Aneura pinguis

Conservation Status

Black Tooth

CR — Critically Endangered

common greasewort

LC — Least Concern

Physical Characteristics

Attribute	Black Tooth	common greasewort
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black Tooth

Habitat

Inhabits temperate broadleaf and mixed forests within the Palearctic biogeographic realm.

Range

Distributed across Belgium, Denmark, Norway, Sweden, and United States. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its 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).

Black Tooth

The Black Tooth (Phellodon niger) is a species in the genus Phellodon. It is currently classified as Critically Endangered on the IUCN Red List. Distributed across Belgium, Denmark, Norway, Sweden, and United States. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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.