Wanlass Grasslands

Site of Special Scientific Interest · 54.3003, -1.9049

Condition (Natural England)

Unfavourable Recovering (1) Favourable (2) Unfavourable Declining (2)
UnitFeatureConditionArea (ha)Assessed
SE053898 Unfavourable Recovering 42.81 2014-12-12
SE061892 Favourable 12.52 2023-03-16
SE062895 Unfavourable Declining 6.62 2019-09-26
SE063896 Favourable 7.02 2019-09-27
SE065893 Unfavourable Declining 6.62 2019-09-26

Geology & landscape

Landscape processes: Fluvial, Glacial

Birds & fish recorded

Birds

SpeciesSeason
crane Unknown

Description

Area, 67.1 hectares 165.8 ac Description The grasslands of Low Wanlass Farm and Wanlass Park comprise a very important series of traditionally managed hay meadows and pastures supporting two grassland communities of particular significance as well as a strong population of the rare burnt orchid Neotinea ustulata. The grassland lie in the flood plain of the River Ure and across undulating glacial deposits including much calcareous drift. The burnt orchid, a nationally rare species, has declined considerably in recent years. In North Yorkshire it is found at the edge of its range and is known from only eight localities. The large population at Wanlass is considered to be significant to the conservation of the species. Greenwinged orchid Anacamptis morio, another uncommon plant, is also found in these meadows. There is an interesting range of semi natural grassland communities which vary according to the base status of wetness of the soil as well as with the detail of grazing and cutting management. Within both the meadows and pastures there is a mosaic of two main plant communities. One is of a calcareous nature and is characterised by sheep's fescue Festuca ovina and meadow oat grass Avenula pratensis, with species like salad burnet Poterium sanguisorba, thyme Thymus praecox, common rock rose Helianthemum nummularium and hoary plantain Plantago media. The second, more neutral grassland community has a high frequency of the grasses crested dog's tail Cynosurus cristatus, red fescue Festuca rubra and sweet vernal grass Anthoxanthum odoratum, with bird's foot trefoil Lotus corniculatus, rough hawkbit Leontodon hispidus, some common knapweed Centaurea nigra and locally much salad burnet, yellow oat grass Trisetum flavescens, pignut Conopodium majus and glaucous sedge Carex flacca. Other plants of note in the meadows include adder's tongue fern Ophioglossum vulgatum, yellow rattle Rhinanthus minor and common twayblade Neottia ovata with kidney vetch Anthyllis vulneraria on the more calcareous banks. In other areas the interest includes local concentrations of common milkwort Polygala vulgaris, moonwort Botrychium lunaria, common rest-harrow Ononis repens, cowslip Primula veris and betony Betonica officinalis. One field supports a distinct northern meadow community characterised by lady's mantle Alchemilla spp, pignut and wood crane's bill Geranium sylvaticum. Overall it is the large areas of generally rich and diverse grassland that are of outstanding importance. Local wetter patches and small areas of native shrubs and trees along field boundaries and on banks add to the overall interest as does the abundance of ant hills in parts of Wanlass Park. Other Information Part of this site was previously notified under the name 'Wanlass Meadows'.

Species mentioned

English name
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Latin name
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IUCN / Red List Type Family
moonwort Botrychium lunaria VU fern ophioglossaceae
adders-tongue fern Ophioglossum vulgatum LC fern ophioglossaceae
sweet vernal grass Anthoxanthum odoratum LC grass poaceae
meadow oat grass Avenula pratensis Not listed in GB list grass poaceae
crested dog's tail Cynosurus cristatus LC grass poaceae
sheep's fescue Festuca ovina LC grass poaceae
red fescue Festuca rubra LC grass poaceae
yellow oat grass Trisetum flavescens LC grass poaceae
green-winged orchid Anacamptis morio NT herb orchidaceae
lady's fingers (kidney vetch) Anthyllis vulneraria NT herb fabaceae
betony Betonica officinalis VU herb lamiaceae
black knapweed Centaurea nigra LC herb asteraceae
pignut Conopodium majus LC herb apiaceae
wood cranesbill Geranium sylvaticum LC herb geraniaceae
rock roses Helianthemum nummularium VU herb cistaceae
rough hawkbit Leontodon hispidus LC herb asteraceae
birdsfoot trefoil Lotus corniculatus LC herb fabaceae
burnt orchid Neotinea ustulata EN herb orchidaceae
common twayblade Neottia ovata NT herb orchidaceae
common rest-harrow Ononis repens VU herb fabaceae
hoary plantain Plantago media LC herb plantaginaceae
common milkwort Polygala vulgaris VU herb polygalaceae
salad burnet Poterium sanguisorba VU herb rosaceae
cowslip Primula veris LC herb primulaceae
yellow-rattle Rhinanthus minor DD herb orobanchaceae
creeping thyme Thymus praecox Not listed in GB list herb lamiaceae
glaucus sedge Carex flacca LC sedge cyperaceae

Plant communities

A9 — Fast flowing river and stream, Marginal and inundation, Pond ditch and canal, Sluggish river and stream

Potamogeton natans community

Schoenoplectus 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

Isolepis 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

Berula 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

Fontinalis 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