Onagraceae Juss.

Evening Primrose Family

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Plants > Angiosperms > Onagraceae

Kingdom: Plantae
Clade: Angiosperms
Class: Dicots
Order: Myrtales
Family: Onagraceae

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​The Onagraceae are a family of flowering plants known as the willowherb family or evening primrose family. They include about 650 species of herbs, shrubs, and trees in 17 genera. The family is widespread, occurring on every continent from boreal to tropical regions. Wikipedia

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Genera: Ludwigia

Ludwigia adscendens

Ludwigia hyssopifolia

Ludwigia octovalvis

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References: 
Wikipedia