coast amaranth vs

Amaranthus pumilus compared with Comatricha meandrispora

Key Differences

• coast amaranth is Extinct while is Not Evaluated.

Taxonomic Classification

Rank	coast amaranth
Kingdom	Plantae (Plants)	Protozoa (protozoa)
Phylum	Magnoliophyta (Flowering Plants)	Mycetozoa
Class	Magnoliopsida (Dicots)	Myxomycetes (Myxomycetes)
Order	Caryophyllales (Caryophyllales)	Stemonitidales
Family	Amaranthaceae	Stemonitidaceae
Genus	Amaranthus	Comatricha
Species	Amaranthus pumilus	Comatricha meandrispora

Conservation Status

coast amaranth

EX — Extinct

NE — Not Evaluated

Physical Characteristics

Attribute	coast amaranth
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.

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway and Sweden.

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.

<em>Comatricha meandrispora</em> is a plasmodial slime mold in the genus <em>Comatricha</em>, class Myxomycetes, order Stemonitidales. The species epithet refers to the distinctive meandering ornamentation of its spores, a morphological feature used in taxonomic identification alongside capillitial structure and sporangial dimensions. It inhabits moist, shaded environments with abundant decaying wood and plant litter, as is typical of species in this genus. During its vegetative phase, the organism forms a motile plasmodium that engulfs bacteria, fungal spores, and other microorganisms as food sources. Environmental stress triggers the transition to reproductive sporangia, from which spores are released for wind dispersal. <em>C. meandrispora</em> contributes to decomposition processes in woodland ecosystems. No quantitative biological traits are available for this species, and it has not been evaluated on the IUCN Red List.