| Answer | % Correct |
|---|---|
| Silver birch | 88%
|
| Alder-leaf birch | 50%
|
| Black alder | 38%
|
| Canoe birch | 38%
|
| Common hornbeam | 38%
|
| Hazel-hornbeam | 38%
|
| Moor birch | 38%
|
| Common hazel | 25%
|
| Hop-hornbeam | 13%
|
| Filbert | 0%
|