Ascidian vs coast amaranth

Styela clava compared with Amaranthus pumilus

Key Differences

Ascidian is Not Evaluated while coast amaranth is Extinct.

Taxonomic Classification

Rank	Ascidian	coast amaranth
Kingdom	Animalia (동물)	Plantae (식물)
Phylum	Chordata (척삭동물)	Magnoliophyta (피자식물문)
Class	Ascidiacea (해초강)	Magnoliopsida (목련강)
Order	Stolidobranchia (강새해초목)	Caryophyllales (석죽목)
Family	Styelidae	Amaranthaceae
Genus	Styela	Amaranthus
Species	Styela clava	Amaranthus pumilus

Conservation Status

Ascidian

NE — Not Evaluated

coast amaranth

EX — Extinct

Physical Characteristics

Attribute	Ascidian	coast amaranth
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Ascidian

Habitat

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

Range

Widely distributed across Europe (12 countries), North America (Canada, Mexico, United States), Oceania and the Pacific (Australia, New Zealand), and South America (Argentina, Brazil).

coast amaranth

Habitat

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

Range

Found in Japan.

Ascidian

Ascidian (Styela clava) is a species in the genus Styela. Native to Europe and North America and Oceania, inhabiting ecosystems characteristic of the region.

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.