Fallopia sachalinensis
![Fallopia sachalinensis_giant knotweed_CDFA_cropped](https://www.cal-ipc.org/wp-content/uploads/2017/10/Fallopia-sachalinensis_giant-knotweed_CDFA_cropped-300x225.jpeg)
- Common name(s): giant knotweed; sakhalin knotweed; sacaline
- Synonym(s): Polygonum sachalinense; Reynoutia sachalinensis
- All names: Fallopia sachalinensis, Polygonum sachalinense, Reynoutia sachalinensis, giant knotweed, sakhalin knotweed, sacaline, Sakhalin knotweed