| Oak (Quercus sp.) | | 2010-06-14 | 2010-05-20 | | Nordbygda skole (Telemark, Norway) |
| Oak (Quercus sp.) | | 2010-06-14 | 2010-05-05 | | Nordbygda skole (Telemark, Norway) |
| Rowan (Sorbus aucuparia) | | 2010-05-24 | 2010-05-11 | | Nordbygda skole (Telemark, Norway) |
| Rowan (Sorbus aucuparia) | | 2010-05-24 | 2010-05-07 | | Nordbygda skole (Telemark, Norway) |
| Birch (Betula sp.) | | 2010-05-24 | 2010-05-05 | | Nordbygda skole (Telemark, Norway) |
| Birch (Betula sp.) | | 2010-04-28 | 2010-04-27 |  | Nordbygda skole (Telemark, Norway) |
| Rowan (Sorbus aucuparia) | | 2010-03-24 | 2010-03-24 | | Nordbygda skole (Telemark, Norway) |
| Oak (Quercus sp.) | | 2010-03-23 | 2010-03-23 | | Nordbygda skole (Telemark, Norway) |
| Birch (Betula sp.) | | 2010-03-22 | 2010-03-22 | | Nordbygda skole (Telemark, Norway) |
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