Mexican Purslane
Portulaca mexicana
Portulaca mexicana is a low-growing succulent plant native to numerous states across Mexico. First described …
Chaco Purslane (Portulaca chacoana)
Silhouette: T. Michael Keesey
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Portulaca chacoana: Habitat and Botanical Characteristics
Native to the arid landscapes of South America, Portulaca chacoana thrives in the challenging environments of Argentina and Paraguay. This resilient succulent belongs to the purslane family and has adapted to survive prolonged periods of drought. Botanist Carlos Maria Diego Enrique Legrand first formally described this species, documenting its presence in the Gran Chaco region.
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 chacoana (Chaco Purslane)
Morphology
As a member of the Portulacaceae family, this species exhibits the classic succulent adaptations required for moisture retention. The stems and leaves are fleshy and specialized for storing water during dry spells. Its growth habit is typically low-growing, allowing it to spread across the dry soils of its native habitat.
The root system is likely designed to quickly absorb rare rainfall. Like many of its relatives, it produces ephemeral flowers that open in response to bright sunlight. The seeds are small and numerous, enclosed in a capsule that splits open upon maturity.
Interesting facts
The specific epithet chacoana refers directly to the Gran Chaco, a vast, hot, and semi-arid lowland region of the Río de la Plata basin. The harsh conditions of this environment have shaped the evolutionary path of this species.
Geography of distribution
- Argentina
- Paraguay
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 …
Round-Leaved Purslane
Portulaca rotundifolia
An annual succulent plant species of the Portulacaceae family, native to South America.
Hairy Hawaiian Purslane
Portulaca villosa
Portulaca villosa, commonly known as hairy purslane or 'ihi, is a rare, prostrate succulent endemic …