16 May 2015 – Cut-leaf Evening Primrose – Oenothera laciniata

16 May 2015 Botany Bill JournalPlant Profile

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The Cut-leaf Evening Primrose is in its prime on the refuge. It is native to most of North America, except for the far western regions. Its scientific name is Oenothera laciniata Hill.

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In some southern states it is considered invasive. It generally occurs in areas that have been disturbed by man.  You can find it on the refuge in open areas and old fields.  However, you may have to look carefully to find it because it occurs in small numbers hidden amongst the grass and other vegetation.

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It and other evening primroses bloom at night and close up as the sun rises in the sky.  This adds to its inconspicuousness.

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