Sesuvium portulacastrum |
Sesuvium trianthemoides |
|
---|---|---|
cencilla, shoreline sea-purslane |
Texas sea-purslane |
|
Habit | Plants perennial, glabrous. | Plants annual, papillate with crystalline globules occasional, glabrous. |
Stems | prostrate, forming mats to 2 m diam., branched; rooting at nodes. |
prostrate, branched, 1–4 dm. |
Leaves | petiole ± absent; blade oblanceolate to elliptic-ovate, to 6 × 2.5 cm, tapered to clasping base. |
petiole clasping, broadly scarious-winged at base; blade oblanceolate to spatulate, 3–5 cm, widest distally, base tapered. |
Inflorescences | flowers solitary; pedicel to 20 mm. |
flowers solitary; pedicel absent. |
Flowers | calyx lobes pink-purple adaxially, with subapical abaxial appendages, ovate to lanceolate, 3–10 mm; stamens 30; pistil 5-carpellate; ovary 5-loculed; styles 5. |
calyx lobes triangular-ovate, with small apical appendages, 3.5 mm; stamens 5; filaments 1 mm; pistil 2-carpellate; ovary 2-loculed; styles 2. |
Capsules | conic, 10 mm. |
ovoid-ellipsoid, 4.5 mm. |
Seeds | 30–60, black, 1.2–1.5 mm, shiny, smooth. |
10, brown, 1.5 mm, rugose with granular ridges. |
Sesuvium portulacastrum |
Sesuvium trianthemoides |
|
Phenology | Flowering year-round. | Flowering summer (Jun–Aug). |
Habitat | Wet or desiccated soils, beaches, dunes, margins of coastal wetlands, waste grounds, ballast | Wet depressions in coastal sand dunes |
Elevation | 0-5 m (0-0 ft) | 0-4 m (0-0 ft) |
Distribution |
AL; FL; GA; LA; MS; NC; PA; SC; TX; Mexico; South America; Europe; Africa
|
TX |
Discussion | Sesuvium portulacastrum is a widespread and variable subtropical and tropical species to which many names have been applied, particularly to material collected beyond North America (e.g., Argentina and Brazil). Although S. portulacastrum occurs or has been reported in natural habitats on the east coast of North America north to North Carolina, and from ballast north to the Delaware River in Pennsylvania, there are no verified records for this species occurring in western North America north of Mexico, where it occurs northward along the coasts of Sonora and Baja California. All records or collections of S. portulacastrum from desert wetlands of the United States are included in S. verrucosum. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Apparently Sesuvium trianthemoides is known only from the type locality. Additional investigation may reveal this entity should be included in S. maritimum. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 4, p. 81. | FNA vol. 4, p. 81. |
Parent taxa | Aizoaceae > Sesuvium | Aizoaceae > Sesuvium |
Sibling taxa | ||
Synonyms | Portulaca portulacastrum, Halimus portulacastrum | |
Name authority | (Linnaeus) Linnaeus: Syst. Nat. ed. 10, 2: 1058. (1759) | Correll: Rhodora 68: 422. (1966) |
Web links |