| Answer | % Correct |
|---|---|
| Japanese knotweed | 67%
|
| Rhubarb | 67%
|
| Pink knotweed | 50%
|
| Buckwheat | 33%
|
| Common knotgrass | 33%
|
| Wild buckwheat (Eriogonum) | 33%
|
| Maidenhair | 17%
|
| Sea grape | 17%
|
| Sorrel | 17%
|
| Water knotweed | 17%
|
| Coral vine (Antigonon) | 0%
|