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Portulaca

Portulaca is a genus of flowering plants in the family Portulacaceae and is the type genus of that family.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 26, 2026|2 min read| Fact-checked

Portulaca is a genus of flowering plants in the family Portulacaceae and is the type genus of that family. The group includes more than 100 species found mainly in tropical and warm temperate regions, and is commonly called purslane. Some species are edible, while others are grown as ornamental plants.

Taxonomy

Portulaca is a genus of flowering plants within the family Portulacaceae. As the type genus of that family, it serves as the defining representative for the group.

Distribution

Portulaca species are native to tropical and warm temperate regions around the world. Some species, particularly common purslane (Portulaca oleracea), have become naturalized in other areas and can be invasive.

Uses

Portulaca species have a variety of uses. Portulaca oleracea, known as common purslane, is edible and consumed as a leafy vegetable. Portulaca grandiflora, also called moss rose, is widely cultivated as an ornamental plant for its showy flowers.

Common names

The genus Portulaca is commonly referred to as purslane. In horticulture, ornamental species such as Portulaca grandiflora are often called moss rose.

Key facts

  • Portulaca is a genus of over 100 flowering plant species.
  • It is the type genus of the family Portulacaceae.
  • Species are found in tropical and warm temperate regions.
  • Portulaca oleracea (common purslane) is edible and can be invasive.
  • Portulaca grandiflora is a popular ornamental plant.
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Canadian context

Portulaca is of interest to Canadian gardeners and horticulturists as an ornamental genus, though many species prefer warm, sunny conditions and are more common in summer bedding and container plantings.

Frequently asked questions

What is Portulaca?
Portulaca is a genus of flowering plants in the family Portulacaceae.
How many species are in Portulaca?
The genus includes over 100 species.
Where do Portulaca species grow?
They are found mainly in tropical and warm temperate regions.
Is Portulaca edible?
Some species are edible, especially Portulaca oleracea, which is commonly eaten as a leafy vegetable.
Is Portulaca used as an ornamental plant?
Yes. Portulaca grandiflora is widely cultivated for its showy flowers.

References

  1. Wikipediahttps://en.wikipedia.org/wiki/Portulaca
    Supports: Genus description, family, type genus, species count, distribution, common name, edible and invasive note
  2. Merriam-Websterhttps://www.merriam-webster.com/dictionary/portulaca
    Supports: Definition of Portulaca as a genus of chiefly tropical succulent herbs and reference to Portulaca grandiflora
  3. Wikipediahttps://en.wikipedia.org/wiki/Portulaca_oleracea
    Supports: Common purslane as an edible succulent plant
  4. Wikipediahttps://en.wikipedia.org/wiki/Portulaca_grandiflora
    Supports: Ornamental species native to southern Brazil, Argentina, and Uruguay