coast amaranth vs coronated cone

Amaranthus pumilus compared with Conus coronatus

Key Differences

coast amaranth is Extinct while coronated cone is Least Concern.

Taxonomic Classification

Rank	coast amaranth	coronated cone
Kingdom	Plantae (植物)	Animalia (動物)
Phylum	Magnoliophyta (被子植物門)	Mollusca (軟体動物)
Class	Magnoliopsida (モクレン綱)	Gastropoda (腹足綱)
Order	Caryophyllales (ナデシコ目)	Neogastropoda (新腹足目)
Family	Amaranthaceae	Conidae
Genus	Amaranthus	Conus
Species	Amaranthus pumilus	Conus coronatus

Conservation Status

coast amaranth

EX — Extinct

coronated cone

LC — Least Concern

Physical Characteristics

Attribute	coast amaranth	coronated cone
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.

coronated cone

Habitat

Inhabits tropical and subtropical moist broadleaf forests within the Afrotropic biogeographic realm.

Range

Widely distributed across Africa (Mauritius, Seychelles, South Africa), Asia (Taiwan), and Oceania and the Pacific (Australia, New Zealand).

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.