Yellow purslane (Portulaca lutea)

Native Yellow Purslane
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Portulaca lutea: Native Yellow Purslane Characteristics

Indigenous to most of the main Hawaiian islands and broadly distributed throughout the Pacific, Portulaca lutea flourishes as a pan-tropical coastal plant. This species acts as a sea-dispersed beach succulent, uniquely adapted to the harsh, saline conditions of maritime environments. It readily colonizes a variety of coastal substrates, ranging from sea level up to elevations of 390 meters.

Ecologically, the species shares similarities with Sesuvium portulacastrum in its growth habits. The plant demonstrates exceptional resilience by surviving oceanic dispersal, allowing vegetative fragments to wash ashore and effortlessly take root in new sandy or rocky habitats.

Taxonomy

  • ∟ царство Plantae
  • ∟ division Tracheophytes (Vascular Plants)
  • ∟ subdivision Spermatophytes (Seed plants)
  • ∟ Angiosperms
  • ∟ mesangiosperms (Core angiosperms)
  • ∟ eudicots
  • ∟ core eudicots
  • ∟ Superasterids
  • ∟ order Caryophyllales
  • ∟ подотряд / подпорядок Portulacineae
  • ∟ family Portulacaceae (Purslane family)
  • ∟ genus Portulaca (Purslane genus)
  • ∟ species Portulaca lutea (Yellow purslane)

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Morphology

The foliage of Portulaca lutea is characterized by fleshy, oval to round leaves that can reach up to 24 millimeters in length. Older sections of the stem are notable for developing a distinct grey bark. This unique feature helps differentiate it from closely related species like Portulaca oleracea.

Blooming prominently at the ends of its stems, the plant displays one to three relatively large yellow flowers, featuring petals up to 12 millimeters long. The resulting fruit is an ovoid capsule with a protective cap that ultimately splits off, scattering numerous tiny black seeds into the surrounding environment.

Interesting facts

Portulaca lutea exhibits remarkable environmental versatility by successfully rooting in highly challenging coastal substrates, including solid lava flows, ancient coral reefs, and shifting sand dunes. Its tolerance to high salt levels and ocean water allows broken stem fragments to act as natural botanical travelers across the Pacific.

Geography of distribution

  • Hawaii
  • Pacific Islands

Sources

  • POWO (Plants of the World Online)
  • GBIF (Global Biodiversity Information Facility)
  • Wikidata
  • Wikimedia Commons

Technical Information

External Databases: GBIF, POWO, Tropicos

See also

Mexican Purslane

Mexican Purslane

Portulaca mexicana

Portulaca mexicana is a low-growing succulent plant native to numerous states across Mexico. First described …

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Red-Stemmed Purslane

Red-Stemmed Purslane

Portulaca rubricaulis

An annual succulent herb characterized by distinctive reddish stems and solitary yellow flowers, found across …

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