CYNGOR CEFN GWLAD CYMRU
COUNTRYSIDE COUNCIL FOR WALES SITE OF SPECIAL SCIENTIFIC INTEREST CITATION
NEATH PORT TALBOT
FRONDEG
Date of Notification:
2000
National Grid Reference:
SN 717059
O.S. Maps:
1:50,000 Sheet number: 160
1:10,000 Sheet number: SN 70
Site Area:
8.7 ha
Description: Frondeg is of special interest for its neutral grasslands, fen - meadows and wet grassland, which
are host to several uncommon plant species. Such vegetation is now increasingly scarce in the
lowlands, most having been lost to agricultural improvement.
Situated north west of Pontardawe, near the village of Rhyd y Fro, Frondeg lies at an altitude of
approximately 150 m. It consists of five enclosures lying either side of a minor road known as
Gwrhyd Road, which runs north-eastwards from Rhyd y Fro to Cwmllynfell. The underlying
bedrock is sandstone of the Lower Pennant Measures of the South Wales coalfield, overlain by
cambic stagnogley soils.
The fields to the east of the road support a fen-meadow community dominated by purple
moor-grass
Molinia caerulea, sharp-flowered rush
Juncus acutiflorus and compact rush
J.conglomeratus, with scattered meadow thistle
Cirsium dissectum. Other species present include
water mint
Mentha aquatica and saw-wort
Serratula tinctoria. In drier areas, the sward is
grassier, with quaking grass
Briza media, sheep’s-fescue
Festuca ovina and mat-grass
Nardus
stricta, together with betony
Stachys officinalis betonica. Where the ground is particularly wet,
such as along drainage lines, wet grassland communities with purple moor-grass, tormentil
Potentilla erecta and wild angelica
Angelica sylvestris have developed. Other species present
here include cross-leaved heath
Erica tetralix, bog asphodel
Narthecium ossifragum, deer-grass
Trichophorum cespitosium and heath spotted orchid
Dactylorhiza maculata, together with
frequent
Sphagnum mosses.
By contrast, the fields to the west of the road support drier grassland communities. Common
knapweed
Centaurea nigra is locally abundant, with a large population of great burnet
Sanguisorba officinalis. Other plants associated with this area include bird’s-foot trefoil
Lotus
corniculatus, meadow vetchling
Lathyrus pratensis and oxeye daisy
Leucanthemum vulgare.
Where the soil is of a slightly more acidic nature, devil’s-bit scabious
Succisa pratensis is a
prominent component of the sward.
Amongst the rarer species to be found at Frondeg is the nationally scarce soft-leaved sedge
Carex
montana. This is a local species found on limestone or mineral - rich soils, confined mainly to the
New Forest area, south west England and south Wales. Other notable plant species present
include petty whin
Genista anglica and whorled caraway
Carum verticillatum.
Remarks:
A public footpath goes through part of the site, which forms part of the St Illtyds Way long
distance footpath.