Bermuda Maidenhair Fern vs Brown Ear

Adiantum bellum compared with Otidea cochleata

Key Differences

• Bermuda Maidenhair Fern is Least Concern while Brown Ear is Vulnerable.

Taxonomic Classification

Rank	Bermuda Maidenhair Fern	Brown Ear
Kingdom	Plantae (Plants)	Fungi (Fungi)
Phylum	Tracheophyta	Ascomycota (Sac Fungi)
Class	Polypodiopsida (Polypodiopsida)	Pezizomycetes (Pezizomycetes)
Order	Polypodiales (Polypodiales)	Pezizales (Pezizales)
Family	Pteridaceae	Otideaceae
Genus	Adiantum	Otidea
Species	Adiantum bellum	Otidea cochleata

Conservation Status

Bermuda Maidenhair Fern

LC — Least Concern

Brown Ear

VU — Vulnerable

Physical Characteristics

Attribute	Bermuda Maidenhair Fern	Brown Ear
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bermuda Maidenhair Fern

Habitat

Typically found in moist, shaded forest floors and tropical canopies.

Brown Ear

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), and North America (United States). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Bermuda Maidenhair Fern

The Bermuda Maidenhair Fern (Adiantum bellum) is a species in the genus Adiantum. It is currently classified as Least Concern on the IUCN Red List. Typically found in moist, shaded forest floors and tropical canopies.

Brown Ear

The Brown Ear (Otidea cochleata) is a species in the genus Otidea. It is currently classified as Vulnerable on the IUCN Red List. Native to Asia and Europe and North America, inhabiting ecosystems characteristic of the region.