. . . . . . . "Onagraceae" . . "Magnoliophyta" . . . "Oenothera fruticosa L." . "Plantae" . "Narrowleaf Evening Primrose" . "Myrtales" . . . . . "Magnoliopsida" . . . "Oenothera fruticosa" . "L." . "Oenothera" . .