Definition of "evening primrose" []

• Any of various North American plants of the genus Oenothera, characteristically having four-petaled yellow flowers that open in the evening. Also called sundrops. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The exception is GLA gamma-linolenic acid, an anti-inflammatory omega-6 fat found in evening primrose and even more plentifully in borage seed oils."
• "This is a particularly calming cream with healing MSM, evening primrose oil good source of GLA to rebuild lipid barrier and inhibit inflammation, CoQ10, aloe, chamomile, grape seed and carrot oils, and Aslan formula GH-3."
• "The evening primrose Oenothera looks yellow to us."