Cae Cwm-bach
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Habitats
Description
Description The site consists of a single meadow normally grazed by sheep in the spring and then put up for hay and cut in late July or August. It is one of a nationally important series displaying the range of seminatural neutral grasslands occuring in Britain. The meadow lies on a gentle north-east facing slope above the River Wye. The grassland of fescues, bent and vernal-grass Festuca/Agrostis/Anthoxanthum is very herb-rich with eyebright Euphrasia officinalis, bulbous buttercup Ranunculus bulbosus, ribwort plantain Plantago lanceolata and bluebell Hyacinthoides non-scripta abundant. Typical western hay meadow species such as globeflower Trollius europaeus, wood anemone Anemone nemorosa and twayblade Neottia ovata are also present. Towards the south-western and southern sides are small mounds of somewhat different botanical composition, with fewer grass species but an abundance of herbs such as pignut Conopodium majus, common sorrel Rumex acetosa, yellow rattle Rhinanthus minor and betony Betonica officinalis. Also present are, great burnet Sanguisorba officinalis, common bistort Polygonum bistorta, and the very characteristic regional plant, wood bitter-vetch Vicia orobus, in some quantity. This site is an excellent example of the mid-wales hay meadows of the wood bitter-vetch/globeflower type, but appears to lack a few of the species such as greater butterfly-orchid Platanthera chlorantha and quaking-grass Briza media, which occur in other examples of this grassland type in this part of mid-Wales.
Species mentioned
Show the 16 species mentioned in the description, with red-list status| English name search for this in other sites |
Latin name search with Google |
IUCN / Red List | Type | Family |
|---|---|---|---|---|
| quaking grass | Briza media | VU | grass | poaceae |
| wood anemone | Anemone nemorosa | LC | herb | ranunculaceae |
| betony | Betonica officinalis | VU | herb | lamiaceae |
| pignut | Conopodium majus | LC | herb | apiaceae |
| English sticky eyebright | Euphrasia officinalis | LC | herb | orobanchaceae |
| bluebell | Hyacinthoides non-scripta | LC | herb | liliaceae |
| common twayblade | Neottia ovata | NT | herb | orchidaceae |
| ribwort plantain | Plantago lanceolata | LC | herb | plantaginaceae |
| greater butterfly orchid | Platanthera chlorantha | NT | herb | orchidaceae |
| bistort | Polygonum bistorta | Not listed in GB list | herb | polygonaceae |
| bulbous buttercup | Ranunculus bulbosus | LC | herb | ranunculaceae |
| yellow-rattle | Rhinanthus minor | DD | herb | orobanchaceae |
| common sorrel | Rumex acetosa | LC | herb | polygonaceae |
| great burnet | Sanguisorba officinalis | LC | herb | rosaceae |
| globe flower | Trollius europaeus | VU | herb | ranunculaceae |
| wood bitter vetch | Vicia orobus | VU | herb | fabaceae |
Plant communities
A9 — Fast flowing river and stream, Marginal and inundation, Pond ditch and canal, Sluggish river and stream
Potamogeton natans community
Show 20 indicator speciesSchoenoplectus lacustris, Juncus bulbosus, Sparganium angustifolium, Sparganium erectum, Sparganium minimum, Alisma plantago-aquatica, Lobelia dortmanna, Equisetum fluviatile, Myriophyllum alterniflorum, Elodea canadensis, Lemna minor, Lemna trisulca, Nymphaea alba, Callitriche platycarpa, Callitriche stagnalis, Littorella uniflora, Potamogeton natans, Ranunculus trichophyllus, Glyceria fluitans, Chara subspinosa
A14 — Fast flowing river and stream
Myriophyllum alterniflorum community
Show 15 indicator speciesIsolepis fluitans, Juncus bulbosus, Fontinalis antipyretica, Lobelia dortmanna, Equisetum fluviatile, Myriophyllum alterniflorum, Lemna minor, Callitriche stagnalis, Littorella uniflora, Potamogeton filiformis, Potamogeton gramineus, Potamogeton natans, Ranunculus peltatus, Chara spp., Nitella hyalina
A17 — Chalk river and stream, Fast flowing river and stream
Ranunculus penicillatus ssp. pseudofluitans community
Show 11 indicator speciesBerula erecta, Nasturtium officinale, Elodea canadensis, Lemna minor, Callitriche stagnalis, Veronica beccabunga, Polygonum amphibium, Polygonum hydropiper, Potamogeton crispus, Potamogeton pectinatus, Ranunculus penicillatus ssp. pseudofluitans
A18 — Fast flowing river and stream
Ranunculus fluitans community
Show 12 indicator speciesFontinalis antipyretica, Fontinalis squamosa var. curnowii, Myriophyllum alterniflorum, Myriophyllum spicatum, Elodea canadensis, Mentha aquatica, Lemna gibba, Lemna minor, Potamogeton perfoliatus, Ranunculus fluitans, Glyceria fluitans, Phalaris arundinacea