| Answer | % Correct |
|---|---|
| Japanese knotweed | 70%
|
| Pink knotweed | 60%
|
| Rhubarb | 60%
|
| Common knotgrass | 30%
|
| Water knotweed | 30%
|
| Buckwheat | 20%
|
| Wild buckwheat (Eriogonum) | 20%
|
| Maidenhair | 10%
|
| Sea grape | 10%
|
| Sorrel | 10%
|
| Coral vine (Antigonon) | 0%
|