Japanese Knotweed | National Invasive Species Information Center
Field Guide: Invasive - Japanese Knotweed Missouri Department of Conservation. Invasive Plants in Pennsylvania: Japanese Knotweed and Giant Knotweed [PDF, 162 KB]
Japanese knotweed | Description, Invasive Species, Weed, …
Japanese knotweed, (Fallopia japonica), herbaceous perennial plant of the buckwheat family (Polygonaceae) native to China, Korea, and Japan. Persistent and aggressive, Japanese knotweed is a noxious weed in many areas outside its native range and ranks among the world’s worst invasive species.
Japanese Knotweed – Profile and Resources - Invasive Species …
Family: Polygonaceae. Did you know? This plant species has been noted to damage households by growing through concrete cracks. Japanese knotweed is native to eastern Asia and was introduced to North America as a horticultural plant in the late 19th century.
The alien shrub that can't be stopped - BBC
2022年10月31日 · Japanese knotweed evolved in one of the harshest environments on Earth – now scientists are desperately trying to find a way to destroy it.
Invasive Plant Factsheet: Japanese Knotweed | Integrated Pest …
Japanese knotweed thrives in disturbed areas, along roadsides, and on stream or river banks, forming dense thickets that pose a significant ecological threat to riparian areas. Its ability to rapidly colonize an area threatens native vegetation and can greatly alter natural ecosystems.
INVASIVE PLANT SPECIES FACT SHEET Problem: Japanese knotweed emerges in early spring and grows quickly and aggressively. It forms dense, nearly pure stands which crowd out native plants. By eliminating grasses and other native plants along creeks, the banks are less stable and more likely to shear off during flooding. This greatly increases ...
NETN Species Spotlight: Japanese Knotweed - U.S. National Park Service
2021年8月15日 · NETN is committed to helping partner parks detect early instances of many invasives species, including Japanese knotweed. Learn more about NETN’s Early Detection Invasive Species program . - Watch this BBC video to see knotweed growing through pavement and into people’s homes.
Japanese Knotweed is an invasive, herbaceous, perennial geophyte. It is listed by the Invasive Species Specialist Group (ISSG; www.issg.org) as one of the 100 worst invasive alien species in the world. Japanese Knotweed is native to Asia, but was brought to the US in 1877 as an ornamental plant.
Japanese Knotweed - Cornell Cooperative Extension
2024年9月26日 · Japanese knotweed (Polygonum cuspidatum Sieb. & Zucc.), a member of the buckwheat family, was introduced into the U.S. from Eastern Asia in the late-1800s. By the late-1930s, it was viewed as a problematic pest.
Itadori knotweed (Reynoutria japonica) - Species Profile
2024年10月30日 · Japanese knotweed is listed as one of the “World’s Worst” invaders (Global Invasive Species Database 2021). Once established, this fast-growing species spreads quickly from its deep extensive underground rhizome system (Del Tredici 2017) to form a dense canopy shading out other species (Beerling et al. 1994).
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