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Oenothera biennis (Evening primrose)

Rowan McOnegal

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Credit: Oenothera biennis (Evening primrose). Credit: Rowan McOnegal. Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)

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Erect plant with oblanceolate leaves and mass of fading yellow flowers. Plant is a source of evening primrose oil used in the treatment of atopic eczema; also used as a dietary supplement; contains 72% linoleic & 7% linolenic acid.


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