Oenothera

Flower of O. macrocarpa

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Profile for Oenothera (Evening Primrose)
Identifying Characteristics
Habit:Erect
Flowers:Yellow, 4 petals
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Global data:
Temperate zone season(s): Mid Summer, Late Summer, Early Fall, Mid Fall, Late Fall

Regional data:
Southeastern Pennsylvania: July, August, September, October
New Hampshire: July, August , September, October, November
Central Pennsylvania: August , September
Manchester, England: November

Additional images: