Habitats where knotgrass (Polygonum aviculare) grows:
| Habitat | NVC communities | Sites |
|---|---|---|
| Arable | NVC → | Sites → |
| Brownfield | NVC → | Sites → |
| Coastal floodplain grazing marsh | NVC → | Sites → |
| Coastal vegetated shingle | NVC → | Sites → |
| Gateways and tracks | NVC → | Sites → |
| Hard cliff and cliff slope | NVC → | Sites → |
| Lowland fen | NVC → | Sites → |
| Only East Anglia | NVC → | Sites → |
| Open habitat arable weed fertile loam and clay | NVC → | Sites → |
| Open habitat arable weed less fertile acid | NVC → | Sites → |
| Open habitat arable weed light lime rich | NVC → | Sites → |
| Pond ditch and canal | NVC → | Sites → |
| Salt marsh | NVC → | Sites → |