Mexican Purslane
Portulaca mexicana
Portulaca mexicana is a low-growing succulent plant native to numerous states across Mexico. First described …
Starry-tuberculate Purslane (Portulaca stellulato-tuberculata)
Silhouette: T. Michael Keesey
/ License
Portulaca stellulato-tuberculata - Taxonomy and Plant Profile
Endemic to the landscapes of Paraguay, Portulaca stellulato-tuberculata stands as a unique botanical specimen within the purslane family. Scientifically described and categorized by the German botanist Karl von Poellnitz, this wild succulent remains an intriguing subject for taxonomists.
The species is deeply integrated into the complex taxonomy of the Portulaca genus. Its highly descriptive specific epithet suggests distinct morphological features, likely referring to microscopic structures essential for accurate botanical identification.
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 stellulato-tuberculata (Starry-tuberculate Purslane)
Morphology
Members of the genus Portulaca are broadly characterized by their succulent nature, and Portulaca stellulato-tuberculata possesses specialized water-storing tissues that enable survival in environments with irregular rainfall.
The scientific name stellulato-tuberculata indicates the presence of small, star-shaped tubercles. In the context of this genus, such microscopic tubercular features are most frequently observed on the surface texture of the seeds, serving as a primary diagnostic characteristic to distinguish it from closely related species.
Interesting facts
Karl von Poellnitz, the botanist who authored this species, made significant contributions to the classification of Portulacaceae, meticulously documenting the subtle variations in seed morphology across different species.
The plant's restricted natural distribution in Paraguay highlights the region's specialized succulent flora, much of which requires further study to fully understand its ecological impact.
Geography of distribution
- Paraguay
Sources
- POWO (Plants of the World Online)
- WFO (World Flora Online)
- GBIF (Global Biodiversity Information Facility)
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 …