Yellow Loosestrife

Lysimachia vulgaris (Garden Loosestrife, Yellow Loosestrife or Garden Yellow Loosestrife) is a species of herbaceous perennial plants in the genus Lysimachia native to wetlands, damp meadows and forests of Eurasia. It is a 50-150 cm tall plant with an upright habit, blooming from June through August with erect panicles of conspicuous yellow flowers. L. vulgaris is sometimes considered invasive outside of its native range.