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The Limnanthaceae is a family of aquatic or marsh herbs. These plants, belonging to the order Geraniales, are characterized by pinnate leaves, small flowers on long stalks, and a fruit composed of multiple carpels. The genus Limnanthes, which gives the family its name, includes annual herbs native to the Pacific coast of North America. Some species, like L. alba, are cultivated for their seeds, which yield an oil used industrially as a lubricant and in cosmetics.123

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