Black Iris vs common greasewort

Iris nigricans compared with Aneura pinguis

Key Differences

• Black Iris is Vulnerable while common greasewort is Least Concern.

Taxonomic Classification

Rank	Black Iris	common greasewort
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Arthropoda (Arthropods)	Marchantiophyta (liverwort)
Class	Insecta (Insects)	Jungermanniopsida (Jungermanniopsida)
Order	Mantodea (Mantodea)	Metzgeriales (Metzgeriales)
Family	Eremiaphilidae	Aneuraceae
Genus	Iris	Aneura
Species	Iris nigricans	Aneura pinguis

Conservation Status

Black Iris

VU — Vulnerable

common greasewort

LC — Least Concern

Physical Characteristics

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

Habitat & Geographic Range

Black Iris

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

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 Iris

The Black Iris (Iris nigricans) is a species in the genus Iris. It is currently classified as Vulnerable on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats. Detailed ecological data for this species continues to be documented through ongoing taxonomic and conservation research.

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.