| NAME OF PLANT | WHERE FOUND | DATE | WHERE FOUND | DATE |
| Polygonum aviculare | ||||
| knotgrass | ||||
| Polypodium interjectum | ||||
| intermediate polypody | ||||
| Polypodium vulgare | ||||
| polypody | ||||
| Polystichum aculeatum | ||||
| hard shield-fern | ||||
| Polystichum setiferum | ||||
| soft shield-fern | ||||
| Populus alba | ||||
| white poplar | ||||
| Populus x canescens | ||||
| grey poplar | ||||
| Populus tremula | ||||
| aspen | ||||
| Potamogeton berchtoldii | ||||
| small pondweed | ||||
| Potamogeton crispus | ||||
| curled pondweed | ||||
| Potamogeton lucens | ||||
| shining pondweed | ||||
| Potamogeton natans | ||||
| broad-leaved pondweed | ||||
| Potamogeton pectinatus | ||||
| fennel pondweed | ||||
| Potamogeton perfoliatus | ||||
| perfoliate pondweed | ||||
| Potamogeton polygonifolius | ||||
| bog pondweed | ||||
| Potentilla anglica | ||||
| trailing tormentil | ||||
| Potentilla anserina | ||||
| silverweed | ||||
| Potentilla argentea | ||||
| hoary cinquefoil | ||||
| Potentilla erecta | ||||
| tormentil | ||||
| Potentilla palustris | ||||
| marsh cinquefoil | ||||
| 69 | ||||