Mexican Purslane
Portulaca mexicana
Portulaca mexicana is a low-growing succulent plant native to numerous states across Mexico. First described …
Two-lobed Purslane (Portulaca biloba)
Cuban purslane
Grit Portulaca
Portulaca biloba (Cuban Purslane): Botanical Profile and Distribution
Endemic to the island of Cuba, Portulaca biloba flourishes in the unique Caribbean climate. This specialized succulent is a recognized member of the Portulacaceae family and contributes to the rich botanical diversity of the Greater Antilles. The plant has adapted its growth cycle to align with the specific moisture and temperature patterns of its native habitat.
Often referred to as the Cuban purslane or Grit Portulaca, it represents a distinct evolutionary branch within its genus. The species was officially documented and described by Ignatz Urban, a prominent botanist known for his extensive work on Caribbean flora.
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 biloba (Two-lobed Purslane)
Morphology
Like many of its relatives, Portulaca biloba possesses succulent foliage and stems that facilitate water storage. The specific epithet "biloba" strongly suggests that a key morphological feature involves two lobes, likely referencing the shape of its leaves or petals. This defining physical trait helps botanists distinguish it from other pursuing species found in the region.
The plant generally exhibits a compact or creeping form, allowing it to hug the ground and reduce exposure to drying winds. Its root system is adapted to rapidly absorb moisture from the substrate during infrequent rainfall events.
Interesting facts
The geographical isolation of Portulaca biloba on the island of Cuba highlights the importance of island ecosystems in fostering unique plant species. Ignatz Urban, who described the species, compiled the monumental "Symbolae Antillanae," a foundational text for understanding West Indian flora. As an endemic species, it relies entirely on the conservation of its native Cuban habitats for continued survival.
Geography of distribution
- Cuba
Sources
- Plants of the World Online (POWO)
- Global Biodiversity Information Facility (GBIF)
- Catalogue of Life
See also
Red-Stemmed Purslane
Portulaca rubricaulis
An annual succulent herb characterized by distinctive reddish stems and solitary yellow flowers, found across …
Extremely Hairy Purslane
Portulaca hirsutissima
A succulent plant endemic to Brazil, characterized by its prominent hairy morphological traits and described …
Giulietti's Purslane
Portulaca giuliettiae
A rare succulent plant species in the purslane family, naturally endemic to the Bahia region …