Christmas-cheer vs coast amaranth

Sedum rubrotinctum compared with Amaranthus pumilus

Key Differences

• Christmas-cheer is Not Evaluated while coast amaranth is Extinct.

Taxonomic Classification

Rank	Christmas-cheer	coast amaranth
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Magnoliopsida (Dicots)	Magnoliopsida (Dicots)
Order	Saxifragales (Saxifragales)	Caryophyllales (Caryophyllales)
Family	Crassulaceae	Amaranthaceae
Genus	Sedum	Amaranthus
Species	Sedum rubrotinctum	Amaranthus pumilus

Evolutionary Relationship

Christmas-cheer and coast amaranth share a common ancestor at the Class level: Magnoliopsida. (Dicots)

Conservation Status

Christmas-cheer

NE — Not Evaluated

coast amaranth

EX — Extinct

Physical Characteristics

Attribute	Christmas-cheer	coast amaranth
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Christmas-cheer

Habitat

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

Range

Distributed across Brazil, Spain, and Taiwan.

coast amaranth

Habitat

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

Range

Found in Japan.

Christmas-cheer

Christmas cheer (Sedum rubrotinctum) is a succulent perennial in the family Crassulaceae, native to Mexico, though its exact wild origin is somewhat uncertain as it may be a stabilized hybrid or cultivated selection derived from closely related species in the genus Sedum. It is widely grown as an ornamental houseplant and garden succulent for its distinctive plump, jelly-bean-shaped leaves that are normally green but turn vivid red when stressed by bright light, drought, or temperature fluctuations. This color change results from the accumulation of anthocyanin pigments in response to environmental stress. The small, star-shaped yellow flowers appear in early spring on short upright stems. Sedum rubrotinctum is a frost-tender species that thrives in warm, dry conditions with well-drained soils and bright sunlight. It propagates readily from leaf cuttings, making it popular among succulent enthusiasts. The plant belongs to the large and diverse Crassulaceae family, which includes many drought-tolerant succulents adapted to arid and semi-arid environments worldwide. As a cultivated species of uncertain wild status, its conservation needs differ from those of wild-collected species, though sustainable horticultural propagation reduces pressure on related wild populations.

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.