巴西凫 vs coast amaranth

Amazonetta brasiliensis compared with Amaranthus pumilus

Key Differences

巴西凫 is Least Concern while coast amaranth is Extinct.

Taxonomic Classification

Rank	巴西凫	coast amaranth
Kingdom	Animalia (动物界)	Plantae (植物)
Phylum	Chordata (脊索动物门)	Magnoliophyta (木兰植物门)
Class	Aves (鳥綱)	Magnoliopsida (木兰纲)
Order	Anseriformes (雁形目)	Caryophyllales (石竹目)
Family	Anatidae	Amaranthaceae
Genus	Amazonetta	Amaranthus
Species	Amazonetta brasiliensis	Amaranthus pumilus

Conservation Status

巴西凫

LC — Least Concern

coast amaranth

EX — Extinct

Physical Characteristics

Attribute	巴西凫	coast amaranth
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

巴西凫

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Found across Europe (5 countries) and South America (Colombia, Ecuador, Venezuela).

coast amaranth

Habitat

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

Range

Found in Japan.

巴西凫

巴西鸭（Amazonetta brasiliensis）在IUCN红色名录中被列为无危（LC）物种。分布广泛，种群数量丰富且稳定，无紧迫保护问题。

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.