Mexican Purslane
Portulaca mexicana
Portulaca mexicana is a low-growing succulent plant native to numerous states across Mexico. First described …
Extremely Hairy Purslane (Portulaca hirsutissima)
Portulaca hirsutissima: Native Brazilian Succulent Species
Endemic to the vast and varied ecosystems of Brazil, Portulaca hirsutissima offers a fascinating glimpse into South American succulent diversity. The French botanist Jacques Cambessèdes first formally recorded and classified this distinct species. Its specific epithet points toward a notably hairy or bristly physical appearance, setting it apart from many smoother relatives within the genus.
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 hirsutissima (Extremely Hairy Purslane)
Morphology
As suggested by its scientific name, Portulaca hirsutissima is characterized by a significant covering of trichomes or fine hairs. These epidermal structures serve crucial protective functions, shading the plant from intense tropical sunlight and significantly reducing water loss through evaporation. The underlying fleshy tissues act as reservoirs, storing essential moisture for periods of severe drought.
The plant grows in a manner perfectly adapted to its specific local habitats across several Brazilian states. This unique texture of its stems and foliage remains its most defining visual and anatomical attribute.
Interesting facts
- The species name hirsutissima translates directly from Latin as 'very hairy', highlighting its most prominent and distinguishing morphological feature.
- Its native range spans several crucial Brazilian biomes, extending from Bahia in the northeast down to Rio de Janeiro in the southeast.
- Jacques Cambessèdes described this plant during a period of intense European botanical exploration of the South American continent.
Geography of distribution
- Brazil
Sources
- Catalogue of Life
- Plants of the World Online (POWO)
- Global Biodiversity Information Facility (GBIF)
See also
Red-Stemmed Purslane
Portulaca rubricaulis
An annual succulent herb characterized by distinctive reddish stems and solitary yellow flowers, found across …
Giulietti's Purslane
Portulaca giuliettiae
A rare succulent plant species in the purslane family, naturally endemic to the Bahia region …
Small's Purslane
Portulaca smallii
A rare, annual succulent native to granite flatrocks in the southeastern United States, characterized by …