climbing groundsel vs coast amaranth

Senecio angulatus compared with Amaranthus pumilus

Key Differences

• climbing groundsel is Not Evaluated while coast amaranth is Extinct.

Taxonomic Classification

Rank	climbing groundsel	coast amaranth
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Magnoliopsida (Dicots)	Magnoliopsida (Dicots)
Order	Asterales (Daisies & Sunflowers)	Caryophyllales (Caryophyllales)
Family	Asteraceae (Daisy Family)	Amaranthaceae
Genus	Senecio	Amaranthus
Species	Senecio angulatus	Amaranthus pumilus

Evolutionary Relationship

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

Conservation Status

climbing groundsel

NE — Not Evaluated

coast amaranth

EX — Extinct

Physical Characteristics

Attribute	climbing groundsel	coast amaranth
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

climbing groundsel

Habitat

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

Range

Widely distributed across Europe (10 countries), Oceania and the Pacific (Australia, New Zealand), and South America (Chile).

coast amaranth

Habitat

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

Range

Found in Japan.

climbing groundsel

Climbing Groundsel, Senecio angulatus, is a woody, scrambling perennial vine in the family Asteraceae native to South Africa, particularly the Western and Eastern Cape provinces, where it grows in coastal scrub, fynbos margins, and forest edges. The species produces yellow daisy-like flower heads in terminal clusters from autumn through spring, which are followed by fluffy white achenes dispersed by wind. Climbing Groundsel has become widely naturalized and highly invasive in many parts of the world where it has been introduced as a garden ornamental, including Australia, New Zealand, and parts of Europe. In Australia, it is listed as a major environmental weed in southeastern states, particularly New South Wales and Victoria, where it invades coastal heath, dry sclerophyll forest, and urban bush remnants, smothering native vegetation with dense scrambling growth. The plant regenerates readily from stem fragments and produces abundant wind-dispersed seeds. Control in invaded habitats requires sustained effort combining physical removal and herbicide application. In its native South African range, Senecio angulatus is part of diverse coastal scrub communities and is not considered threatened. The genus Senecio is one of the largest flowering plant genera in the world, with species ranging from annuals to giant tree groundsels in tropical alpine zones.

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.