COUNTRYSIDE COUNCIL FOR WALES
SITE OF SPECIAL SCIENTIFIC INTEREST CITATION
ANGLESEY TRE WILMOT
Date of notification: 1980, 1986
National Grid Reference: SH230817
O.S. Maps: 1:50000 Sheet number: 114
1:25000 Sheet number :SH28
Site Area: 63.4 ha
Description:
This is a large area of acidic, lowland heath overlying a series of rocky ridges and intervening depressions, which give rise to a range of heathland vegetation communities. The well drained heath on the ridges is dominated by ling Calluna vulgaris and western gorse Ulex gallii, with spring squill Scilla verna and, on rock outcrops, English stonecrop Sedum anglicum. The lower-lying areas support wet heath or peatland communities, with species such as crossleaved heath Erica tetralix, purple moor-grass Molinia caerulea, common cotton grass Eriophorum angustifolium and creeping willow Salix repens. Of particular note is a very large population of marsh gentian Gentiana pneumonanthe and, in small open water areas, pillwort Pilularia globulifera; both these species have decreased markedly over the country as a whole with progressive reclamation of their habitats.