(Ludwigia virgata)
Ludwigia alternifolia, commonly known as bushy seedbox and rattlebox, is a herbaceous perennial plant of the family Onagraceae. It is native to southern Quebec and Ontario to Kansas and south to Texas and Florida. It grows in marshes, wet meadows, and swamps. Ludwigia alternifolia grows 2–3 inches (5.1–7.6 cm) tall on reddish-tinged stems. Leaves are deep green, sharply-pointed, and lance-shaped. Flowers are yellow in color, with four petals, and bloom June to August.