| Site of Special Scientific Interest | |
 | |
| Location | Cambridgeshire |
|---|---|
| Grid reference | TL 567 768[1] |
| Interest | Biological |
| Area | 0.15 hectares[1] |
| Notification | 1989[1] |
| Location map | Magic Map |
Delph Bridge Drain is a 0.15-hectare (0.37-acre) biological Site of Special Scientific Interest north-west of Soham in Cambridgeshire.[1][2]
This site has the only known British population of fen ragwort, which was previously believed to have become extinct in the UK in 1857, due to habitat destruction. It was re-discovered in 1971 when dormant seeds probably germinated following excavation of the drain.[3]
The site is a short stretch of ditch next to the A142 road between Soham and Ely.
- ^ a b c d "Designated Sites View: Delph Bridge Drain". Sites of Special Scientific Interest. Natural England. Retrieved 6 November 2016.
- ^ "Map of Delph Bridge Drain". Sites of Special Scientific Interest. Natural England. Retrieved 6 November 2016.
- ^ "Delph Bridge Drain citation" (PDF). Sites of Special Scientific Interest. Natural England. Archived from the original (PDF) on 24 October 2012. Retrieved 6 November 2016.