Botanical name: Oenothera laciniata    Family: Onagraceae (Evening primrose family)
Synonyms: Oenothera sinuata, Oenothera viscosa, Oenothera repanda

Cutleaf Evening Primrose is an annual herb that grows 10-45 cm high, erect or prostrate. Leaves are alternate, simple, pinnately cut into rounded lobes, or sometimes merely wavy-edged or toothed. Usually they are about 5 cm long and 1.2 cm wide. The small, pale yellow flowers are borne singly in leaf axils, with 4 heart shaped petals 0.5-1.5 cm long, 8 stamens, and 1 pistil. Flowers have 4 pinkish sepals, united at the base to form a tube. Cutleaf Evening Primrose is native to the eastern United States but has escaped cultivation and has becomes naturalized in many parts of the world, including India.

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The flower labeled Cutleaf Evening Primrose is ...