About Ludwigia hyssopifolia (G.Don) Exell
Ludwigia hyssopifolia, commonly known as seedbox and linear leaf water primrose, is a flowering plant species belonging to the genus Ludwigia. It is native to the New World Tropics, and has been widely introduced to tropical regions across the rest of the world. It is classified as a serious weed of rice paddies, and a single individual plant can produce up to 250,000 seeds.