bell hydroid vs coast amaranth

Obelia geniculata compared with Amaranthus pumilus

Key Differences

bell hydroid is Not Evaluated while coast amaranth is Extinct.

Taxonomic Classification

Rank	bell hydroid	coast amaranth
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Cnidaria (Cnidarians)	Magnoliophyta (Flowering Plants)
Class	Hydrozoa (Hydrozoa)	Magnoliopsida (Dicots)
Order	Leptothecata (Leptothecata)	Caryophyllales (Caryophyllales)
Family	Campanulariidae	Amaranthaceae
Genus	Obelia	Amaranthus
Species	Obelia geniculata	Amaranthus pumilus

Conservation Status

bell hydroid

NE — Not Evaluated

coast amaranth

EX — Extinct

Physical Characteristics

Attribute	bell hydroid	coast amaranth
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

bell hydroid

Habitat

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

Range

Widely distributed across Africa (South Africa), Europe (4 countries), North America (United States), Oceania and the Pacific (New Zealand), and South America (Chile).

coast amaranth

Habitat

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

Range

Found in Japan.

bell hydroid

The Bell hydroid (Obelia geniculata) is a species in the genus Obelia. Native to Africa and Europe and North America, 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.