Bordered Screw-moss vs coast amaranth

Tortula marginata compared with Amaranthus pumilus

Key Differences

• Bordered Screw-moss is Endangered while coast amaranth is Extinct.

Taxonomic Classification

Rank	Bordered Screw-moss	coast amaranth
Kingdom same	Plantae (पादप)	Plantae (पादप)
Phylum	Bryophyta	Magnoliophyta (Flowering Plants)
Class	Bryopsida (Bryopsida)	Magnoliopsida (मैग्नोलियोप्सीडा)
Order	Pottiales (Pottiales)	Caryophyllales (कैरियोफ़िलालीस)
Family	Pottiaceae	Amaranthaceae
Genus	Tortula	Amaranthus
Species	Tortula marginata	Amaranthus pumilus

Evolutionary Relationship

Bordered Screw-moss and coast amaranth share a common ancestor at the Kingdom level: Plantae. (पादप)

Conservation Status

Bordered Screw-moss

EN — Endangered

coast amaranth

EX — Extinct

Physical Characteristics

Attribute	Bordered Screw-moss	coast amaranth
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bordered Screw-moss

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, tundra, and tropical and subtropical moist broadleaf forests spanning the Australasia and Oceanian realms.

Range

Distributed across Belgium, Luxembourg, New Zealand, Norway, and Portugal. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

coast amaranth

Habitat

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

Range

Found in Japan.

Bordered Screw-moss

The Bordered Screw-moss (Tortula marginata) is a species in the genus Tortula. It is currently classified as Endangered on the IUCN Red List. Found across multiple habitat types including temperate broadleaf and mixed forests, tundra, and tropical and subtropical moist broadleaf forests spanning the Australasia and Oceanian realms.

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.