Linum usitatissimum is a rich source of Omega-3., good for cardiovascular health. 1. Taxonomic insights Species: Linum usitatissimum Family: Linaceae Genus: Linum The Linaceae family is not large, but it contains species with significant fibrous, oily, and medicinal properties, with Linum usitatissimum  being the most economically and medicinally important. Related Herbs from the same family: Linum catharticum (Purging Flax, Fairy Flax): A European species traditionally used