Durham Rare Plant Register - Botanical Society of the British Isles

Significant SitesSeveral sites within the county have numbers of nationally rare and scarcespecies. The Upper Teesdale NNR is large and species-rich, and is easily thebest area in the county for these species, and perhaps the best in England.Area Status Rare & ScarceSpeciesUpper Teesdale NNR/SSSI 46Durham Coast NNR/SSSI 14Castle Eden NNR 7DeneThrislington NNR 6Cassop Vale NNR 6Winch Bridge No status (see 5Cragsbelow)Hawthorn Dene SSSI 5BishopSSSI 4MidddlehamQuarryOther SSSIs SSSI 1 or 2.Upper Teesdale, confluence of the River Tees and the Harwood Beck