Once used to pack Chinese porcelain, this invasive grass has spread across 16 eastern US states, threatening native plants in forests and wetlands |
Japanese stiltgrass, an invasive annual grass native to parts of Asia, was introduced to the United States in Tennessee between 1918 and 1919. It likely arrived as packing material used to protect porcelain, with seeds escaping into the surrounding environment. Since then, the plant has become established in 16 eastern states, ranging from New York…