Bending Bittercress vs coast amaranth

Cardamine flexuosa compared with Amaranthus pumilus

Key Differences

• Bending Bittercress is Not Evaluated while coast amaranth is Extinct.

Taxonomic Classification

Rank	Bending Bittercress	coast amaranth
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Magnoliopsida (Dicots)	Magnoliopsida (Dicots)
Order	Brassicales (Brassicales)	Caryophyllales (Caryophyllales)
Family	Brassicaceae	Amaranthaceae
Genus	Cardamine	Amaranthus
Species	Cardamine flexuosa	Amaranthus pumilus

Evolutionary Relationship

Bending Bittercress and coast amaranth share a common ancestor at the Class level: Magnoliopsida. (Dicots)

Conservation Status

Bending Bittercress

NE — Not Evaluated

coast amaranth

EX — Extinct

Physical Characteristics

Attribute	Bending Bittercress	coast amaranth
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bending Bittercress

Habitat

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

Range

Widely distributed across Africa (South Africa, Zimbabwe), Asia (8 countries), Europe (7 countries), North America (7 countries), Oceania and the Pacific (Australia), and South America (Colombia, Venezuela).

coast amaranth

Habitat

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

Range

Found in Japan.

Bending Bittercress

The Bending Bittercress (Cardamine flexuosa) is a species in the genus Cardamine. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

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.