The purslane family. A single genus family - Portulaca - with 115 species. The familiar North American succulent weed - Portulaca oleracea - is found throughout the world and in many places used as a nutritious food. Not only is it high in vitamins and minerals, but it is said to have the highest omega-3 fatty acid content of any plant. Another species, Portulaca grandiflora, is grown as an ornamental.
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