Mexican Purslane
Portulaca mexicana
Portulaca mexicana is a low-growing succulent plant native to numerous states across Mexico. First described …
Red-Stemmed Purslane (Portulaca rubricaulis)
redstem purslane
mañanita de monte
mañanita amarilla
verdolaga de tallo rojo
Portulaca rubricaulis (Redstem Purslane): Morphology and Distribution
The diverse ecosystems stretching from the southern United States down to northern South America serve as the native habitat for Portulaca rubricaulis. Commonly found thriving in disturbed soils and rocky environments, this resilient plant adapts easily to challenging conditions.
Botanist Carl Sigismund Kunth officially described and named the species in 1823. The specific epithet rubricaulis perfectly captures its visual essence, translating from Latin to mean 'reddish stem'.
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 rubricaulis (Red-Stemmed Purslane)
Morphology
Growing as an annual succulent herb, the plant develops erect, branching stems that can reach up to 33 centimeters in height. These stems are notably fleshy and often display a characteristic reddish tint, complemented by white, simple axillary hairs.
The foliage consists of alternate leaves featuring a sharply acute apex. During its blooming period, it produces one to three solitary yellow flowers, which generally possess five to six petals.
The reproductive structures include approximately fifty stamens and four to seven stigmas. Following pollination, the plant develops a small capsule fruit measuring 4 to 6 millimeters, containing tiny brown to black seeds that are less than a millimeter in size.
Interesting facts
- The scientific name directly translates to its most prominent visual feature, combining the Latin words ruber (reddish) and caulis (stem).
- It easily colonizes disturbed and rocky environments, demonstrating highly adaptable ecological traits.
- Despite its relatively small flower size, a single bloom can contain around fifty individual stamens.
Geography of distribution
- United States
- Mexico
- Cuba
- Venezuela
- Colombia
Sources
- Wikipedia
- Wikimedia Commons
See also
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 …
Small's Purslane
Portulaca smallii
A rare, annual succulent native to granite flatrocks in the southeastern United States, characterized by …