Raus's Purslane (Portulaca rausii)

Silhouette: T. Michael Keesey / License

Portulaca rausii: Botanical Characteristics and Range

Described by botanist Avinoam Danin, Portulaca rausii flourishes across diverse geographic regions, notably within the Mediterranean basin and extending as far as Peru. This botanical species forms part of the Portulacaceae family, contributing to the rich diversity of plants found in these temperate and subtropical zones.

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 rausii (Raus's Purslane)

Living Pulse

Powered by iNaturalist

Morphology

Vegetative structures exhibit the typical adaptations of xerophytic plants for strict water conservation. Stems are generally prostrate or ascending, fleshy, and with branches extending over the rocky or sandy substrate. Modified leaves store crucial water reserves that allow cellular survival during prolonged drought periods.

Although exact morphological variations depend on local microclimatic conditions, the plant maintains the anatomical pattern characteristic of its family. The delicate flowers open in direct response to the intensity of daytime sunlight. Their reproductive structures are highly optimized to attract specific pollinators in arid ecosystems.

Interesting facts

There are fascinating details regarding the ecology and geographical distribution of this botanical entity:

  • Its habitat range anomalously includes both the Old World (Mediterranean basin) and the New World (Peru), representing an intriguing phytogeographical mystery.
  • Island populations are well established and documented in locations of great historical interest such as Sicily, Cyprus, and the island of Rhodes.
  • It shows a notable ecological affinity for coastal zones and areas with highly permeable soils, preferring sandy or loose substrates.

Geography of distribution

  • Algeria
  • Sicily
  • Greece
  • Turkey
  • Cyprus
  • Peru

Sources

  • POWO (Plants of the World Online)
  • WFO (World Flora Online)
  • GBIF (Global Biodiversity Information Facility)

Technical Information

Taxon Synonyms: Portulaca oleracea subsp. rausii

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 …

Read more →
Red-Stemmed Purslane

Red-Stemmed Purslane

Portulaca rubricaulis

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

Read more →