Bermuda Maidenhair Fern vs coast amaranth

Adiantum bellum compared with Amaranthus pumilus

Key Differences

• Bermuda Maidenhair Fern is Least Concern while coast amaranth is Extinct.

Taxonomic Classification

Rank	Bermuda Maidenhair Fern	coast amaranth
Kingdom same	Plantae (植物)	Plantae (植物)
Phylum	Tracheophyta	Magnoliophyta (被子植物門)
Class	Polypodiopsida (ウラボシ綱)	Magnoliopsida (モクレン綱)
Order	Polypodiales (ウラボシ目)	Caryophyllales (ナデシコ目)
Family	Pteridaceae	Amaranthaceae
Genus	Adiantum	Amaranthus
Species	Adiantum bellum	Amaranthus pumilus

Evolutionary Relationship

Bermuda Maidenhair Fern and coast amaranth share a common ancestor at the Kingdom level: Plantae. (植物)

Conservation Status

Bermuda Maidenhair Fern

LC — Least Concern

coast amaranth

EX — Extinct

Physical Characteristics

Attribute	Bermuda Maidenhair Fern	coast amaranth
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bermuda Maidenhair Fern

Habitat

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

coast amaranth

Habitat

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

Range

Found in Japan.

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.

coast amaranth

Coast amaranth (Amaranthus pumilus) is an annual herb in the family Amaranthaceae, native to the Atlantic and Gulf coasts of the eastern United States, where it once grew on coastal foredunes, beach strand, and shell-hash substrates above the high tide line from New York south to South Carolina. It is a low-growing, fleshy plant with small, rounded leaves and inconspicuous green flowers typical of the genus. Coast amaranth is assessed as Extinct in the Wild by the IUCN, as it has not been reliably documented from wild populations since the mid-20th century; the last confirmed collections date to the 1960s. The species' decline and likely extinction resulted from intense human pressure on Atlantic coastal habitats through shoreline development, beach stabilisation, vehicular traffic on beaches, and increased storm frequency disrupting pioneer dune vegetation. It is federally listed as Threatened in the United States, though this listing predates confirmed extinction in the wild. A small number of ex-situ accessions may exist in botanical garden collections. Genetic material and seed banking efforts represent the only remaining conservation options for this critically reduced species.