Button-Willow vs Nutria

Cephalanthus occidentalis compared with Lutra lutra

Key Differences

Button-Willow is Least Concern while Nutria is Vulnerable.

Taxonomic Classification

Rank	Button-Willow	Nutria
Kingdom	Plantae (planta)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (cordados)
Class	Magnoliopsida (Dicots)	Mammalia (mamíferos)
Order	Gentianales (Gentianales)	Carnivora (carnívoros)
Family	Rubiaceae	Mustelidae (Weasels & Otters)
Genus	Cephalanthus	Lutra (Otters)
Species	Cephalanthus occidentalis	Lutra lutra

Conservation Status

Button-Willow

LC — Least Concern

Nutria

VU — Vulnerable

Trend: Stable →

Physical Characteristics

Attribute	Button-Willow	Nutria
Diet	—	Carnivore
Average Lifespan	—	10 years
Average Length	—	1.0 m
Average Weight	—	10.0 kg

Habitat & Geographic Range

Button-Willow

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Distributed across Norway and United States.

Nutria

Habitat

Typically found in diverse ecosystems where prey species are available.

Range

Found across Europe (6 countries). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Button-Willow

The Button-Willow (Cephalanthus occidentalis) is a species in the genus Cephalanthus. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Nutria

Mustelido semiacuático de cuerpo esbelto que habita a lo largo de ríos limpios, arroyos y costas de Europa y Asia. La nutria europea (Lutra lutra) puede alcanzar 1,3 metros de longitud y es una cazadora de peces altamente habilidosa, utilizando bigotes sensibles para detectar los movimientos de sus presas. Al requerir aguas no contaminadas con abundancia de peces, es una especie indicadora de la salud de los ecosistemas de agua dulce. Casi extinta en Europa Occidental por la caza y la contaminación, las poblaciones se han recuperado significativamente tras las mejoras en la calidad del agua.