coast amaranth vs Flat-Top Bogmoss

Amaranthus pumilus compared with Sphagnum fallax

Key Differences

• coast amaranth is Extinct while Flat-Top Bogmoss is Least Concern.

Taxonomic Classification

Rank	coast amaranth	Flat-Top Bogmoss
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum	Magnoliophyta (Flowering Plants)	Bryophyta
Class	Magnoliopsida (Dicots)	Sphagnopsida (Sphagnopsida)
Order	Caryophyllales (Caryophyllales)	Sphagnales (Sphagnales)
Family	Amaranthaceae	Sphagnaceae
Genus	Amaranthus	Sphagnum
Species	Amaranthus pumilus	Sphagnum fallax

Evolutionary Relationship

coast amaranth and Flat-Top Bogmoss share a common ancestor at the Kingdom level: Plantae. (Plants)

Conservation Status

coast amaranth

EX — Extinct

Flat-Top Bogmoss

LC — Least Concern

Physical Characteristics

Attribute	coast amaranth	Flat-Top Bogmoss
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

coast amaranth

Habitat

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

Range

Found in Japan.

Flat-Top Bogmoss

Habitat

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

Range

Found across Europe (5 countries) and North America (United States).

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.