ホンケワタガモ vs common greasewort

Somateria mollissima compared with Aneura pinguis

Key Differences

• ホンケワタガモ is Near Threatened while common greasewort is Least Concern.

Taxonomic Classification

Rank	ホンケワタガモ	common greasewort
Kingdom	Animalia (動物)	Plantae (植物)
Phylum	Chordata (脊索動物)	Marchantiophyta (苔類)
Class	Aves (鳥類)	Jungermanniopsida (Jungermanniopsida)
Order	Anseriformes (カモ目)	Metzgeriales (Metzgeriales)
Family	Anatidae	Aneuraceae
Genus	Somateria	Aneura
Species	Somateria mollissima	Aneura pinguis

Conservation Status

ホンケワタガモ

NT — Near Threatened

common greasewort

LC — Least Concern

Physical Characteristics

Attribute	ホンケワタガモ	common greasewort
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

ホンケワタガモ

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Found across Europe (5 countries) and North America (United States). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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).

ホンケワタガモ

ホンケワタガモ（Somateria mollissima）はIUCNレッドリストで準絶滅危惧（NT）に分類されている。脅威のある種の基準に近く、保全措置がなければ脆弱になる可能性がある。

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 5 countries:

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