The valley has marsh and Jurassiccalcareous grassland areas. The marshland is on the valley floor, and dominant species are lesser pond-sedge and the rushes Juncus articulatus and Juncus inflexus. Areas of scrub and willow carr provide additional habitats for invertebrates and birds.[3]
^"Map of Bonemills Hollow". Sites of Special Scientific Interest. Natural England. Retrieved 28 August 2016.
^"Bonemills Hollow citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived from the original(PDF) on 4 March 2016. Retrieved 28 August 2016.