Cobbler's Plain Meadows, Devauden
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Geology & landscape
Rock Type: Sandstone
Description
Description Cobbler's Plain Meadows are situated to the north of the village of Devauden at an altitude of between 120-190 metres. The underlying geology is lower Old Red Sandstone and the soils are classified as brown earths of the Milford and Eardiston 1 associations. The meadows are located on a steep western facing slope and are generally freely drained with local minor flushing. The site supports the largest areas in Gwent of a particular unimproved neutral grassland community type as well as plant species which are becoming scarce in the county and nationally. The western meadow supports relatively unimproved neutral grassland of the common knapweed -crested dog's tail Centaurea nigra - Cynosurus cristatus community. The site is unusual in that both these species are sparse here, but another key plant of this community, common bird's-foot-trefoil Lotus corniculatus, is abundant. The grassland is best referred to the Lathyrus pratensis (meadow vetchling) sub-community. The eastern meadow supports a wider range of communities including some grassland in the north west corner similar to the above. The upper part of the field, however, is more typical of an acidic community, the Festuca ovina - Agrostis capillaris - Galium saxatile (sheep's-fescue -common bent -heath bedstraw) grassland. Again, this is an unusual example of the community as sheep's-fescue and heath bedstraw are missing. Grassland in the lower part of the meadow has affinities with both communities and flushes with abundant small sedges are also present. The most frequent grasses throughout are common bent, sweet vernal-grass Anthoxanthum odoratum, red fescue Festuca rubra and Yorkshire-fog Holcus lanatus. Carnation sedge Carex panicea, glaucous sedge Carex flacca and flea sedge Carex pulicaris occur only in the flushes. Adder's-tongue Ophioglossum Vulgatumis present in both meadows. Herbs which are characteristic of unimproved grassland are well represented and include common spotted-orchid Dactylorhiza fuchsii, dyer's greenweed Genista tinctoria, fairy flax Linum Catharticum, yellow-rattle Rhinanthus minor and devil's-bit scabious Succisa pratensis. Also present in the eastern meadow are common twayblade Neottia ovata, green-winged orchid Anacamptis morio and hairy lady's-mantle Alchemilla filicaulis. Remarks: Adjoins Wye Valley Area of Outstanding Natural Beauty.
Species mentioned
Show the 20 species mentioned in the description, with red-list statusInsects to look out for
These moths and butterflies are known to feed on plants recorded at this site, and carry a notable UK conservation status — but a host-plant being present doesn't mean the insect has actually been recorded here. Treat this as "worth watching for," not a confirmed sighting.
| Species | Status | Via host-plant |
|---|---|---|
| Black-veined moth Siona lineata |
Critically Endangered | Centaurea nigra, Lotus corniculatus |
| New forest Zygaena viciae |
Critically Endangered | Lathyrus pratensis, Lotus corniculatus |
| Straw belle Aspitates gilvaria |
Endangered | Lotus corniculatus |
| Wood white Leptidea sinapis |
Endangered | Lathyrus pratensis, Lotus corniculatus |
| Least minor Photedes captiuncula |
Endangered | Carex flacca |
| Slender scotch Zygaena loti |
Endangered | Lotus corniculatus |
| Mouse moth Amphipyra tragopoginis |
Vulnerable | Lotus corniculatus |
| Dingy skipper Erynnis tages |
Vulnerable | Lotus corniculatus |
| Marsh fritillary Euphydryas aurinia |
Vulnerable | Succisa pratensis |
| Satyr pug Eupithecia satyrata |
Vulnerable | Centaurea spp., Galium spp., Rhinanthus minor |
| Grayling Hipparchia semele |
Vulnerable | Festuca ovina, Festuca rubra |
| Bedstraw hawk-moth Hyles gallii |
Vulnerable | Galium spp. |
| Silver studded blue Plebejus argus |
Vulnerable | Lotus corniculatus |
| Lead belle Scotopteryx mucronata |
Vulnerable | Genista tinctoria |
| Latticed heath Chiasmia clathrata |
Near Threatened | Lathyrus pratensis |
| Small heath Coenonympha pamphilus |
Near Threatened | Agrostis spp., Cynosurus cristatus, Festuca spp. |
| The Silurian Eriopygodes imbecilla |
Near Threatened | Galium saxatile |
| Autumnal rustic Eugnorisma glareosa |
Near Threatened | Festuca ovina, Galium spp. |
| Grey pug Eupithecia subfuscata |
Near Threatened | Centaurea spp. |
| Silver-spotted skipper Hesperia comma |
Near Threatened | Festuca ovina |
| Scarce forester Jordanita globulariae |
Near Threatened | Centaurea nigra |
| Wall Lasiommata megera |
Near Threatened | Agrostis spp., Holcus lanatus |
| Rosy minor Litoligia literosa |
Near Threatened | Carex flacca, Festuca ovina |
| Red carpet Xanthorhoe decoloraria |
Near Threatened | Alchemilla spp. |
| Dark-barred twin-spot carpet Xanthorhoe ferrugata |
Near Threatened | Galium spp. |
Hostplant data: Cook et al. (2025), Traits data for the butterflies and macro-moths of Great Britain and Ireland, 2024, UK Centre for Ecology & Hydrology / Butterfly Conservation (Open Government Licence). Contains data supplied by UK Centre for Ecology & Hydrology.