Portulaca

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Portulaca at Kadavoor

Portulaca in Kadavoor

Portulaca, from seeds put up by D. M. Ferry & Co., Detroit, Mich. (front) - 8960909445

Harvey J Jackson Portulaca 2019

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Portulaca is a genus of flowering plants in the family Portulacaceae, comprising over 100 species. The members of this genus are commonly known as purslanes. They are widely distributed in the tropical and temperate regions of the world, with a high diversity of species found in Brazil and Argentina. Portulaca species are annual or perennial succulent plants, which makes them highly resilient to drought conditions. They are characterized by their fleshy leaves and often vibrant flowers, which can be yellow, pink, red, or white, depending on the species.

Description

Portulaca plants have a distinctive appearance, with thick, fleshy leaves that are usually cylindrical or flattened and sometimes arranged in a rosette pattern. The leaves are adapted to store water, allowing the plant to survive in arid environments. The flowers of Portulaca are typically small but brightly colored, with five petals, and they open only during the sunlight hours. These plants are known for their ability to thrive in poor, gravelly soils and are often found in disturbed sites, including roadsides and cultivated fields, as well as in natural habitats like deserts and beaches.

Cultivation and Uses

Portulaca is popular in horticulture as an ornamental plant due to its colorful flowers and low maintenance requirements. It is often used in rock gardens, as ground cover, or in containers. Some species, notably Portulaca oleracea (commonly known as common purslane), are edible and have been used in traditional medicine and as a food source in various cultures. Portulaca oleracea is rich in omega-3 fatty acids, vitamins, and minerals, making it a nutritious addition to salads and other dishes.

Species

Among the numerous species in the genus, some of the most well-known include:

• Portulaca grandiflora – Known as moss rose, it is widely cultivated for its showy, multi-colored flowers.
• Portulaca oleracea – Common purslane, valued both as an edible plant and for its medicinal properties.
• Portulaca umbraticola – Also known as wingpod purslane, it is another ornamental species with attractive foliage and flowers.

Conservation

While many Portulaca species are common and not considered at risk, habitat destruction and climate change pose threats to certain species, especially those with limited distributions. Conservation efforts are necessary to protect these species from potential decline.

Gallery

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See Also

• Succulent plant
• Horticulture
• Traditional medicine
• Omega-3 fatty acid