|
| *****SWAAG_ID***** | 350 |
| Date Entered | 24/11/2011 |
| Updated on | 15/01/2013 |
| Recorded by | Tim Laurie |
| Category | Tree Site Record |
| Record Type | Botanical HER |
| SWAAG Site Name | |
| Site Type | |
| Site Name | |
| Site Description | |
| Site Access | Public Access Land |
| Record Date | 20/06/2010 |
| Location | Oxnop Common. Oxnop Scar. |
| Civil Parish | Muker |
| Brit. National Grid | SD 937 955 |
| Altitude | 495m |
| Geology | Main Limestone cliff and talus slope below. |
| Record Name | MUK149 Oxnop Scar relict limestone ash woodland with aspen and juniper. |
| Record Description | West facing fully exposed limestone cliff with species rich limestone ashwood including a cloned colony of aspen and two isolated junipers (prostrate form).
Surprisingly at this elevation ash, blackthorn, elder, hawthorn, hazel, rowan and downy rose grow on the exposed face of the cliff at their local altitudinal limit.
Self seeded sycamore is also present.
Rarities include lesser meadow rue and rigid buckler fern.
(SD 937 955 centre) |
| Dimensions | See photos |
| Geographical area | Upper Swaledale |
| Species | See LR Species Lists |
| Scientific Name | |
| Common / Notable Species | Aspen, Juniper (prostrate form), Lesser Meadow Rue, Rigid Buckler Fern. |
| Tree and / or Stem Girth | |
| Tree: Position / Form / Status | |
| Tree Site ID | 0 |
| Associated Site SWAAG ID | 0 |
| Additional Notes | Oxnop Scar
Vegetation
Species Lists compiled by Mrs Linda Robinson
1. Oxnop Scar
Top Scar (South end)
Asplenium ruta-muraria – Wall-rue.
Asplenium trichomanes – Maidenhair-fern.
Bellis perennis – Daisy.
Carduus nutans – Musk Thistle.
Carex caryophyllea – Spring Sedge.
Carex flacca – Carnation Sedge.
Cerastium fontanum – Common Mouse-ear.
Cirsium palustre – Marsh Thistle.
Cirsium vulgare – Spear Thistle.
Crataegus monogyna – Hawthorn.
Cystopteris fragilis – Brittle Bladder-fern.
Dryopteris submontana – Rigid Buckler-fern.
Euphrasia sp. – Eyebright.
Festuca ovina – Sheep’s Fescue.
Galium sterneri – Limestone Bedstraw.
Galium verum – Lady’s Bedstraw.
Geranium robertianum – Herb Robert.
Hieracium sp. – Hawkweed.
Linum catharticum – Fairy Flax.
Luzula pilosa – Hairy Wood-rush.
Oxalis acetosella – Wood Sorrel.
Plantago lanceolata – Ribwort Plantain.
Poa annua – Annual Meadow-grass.
Potentilla erecta – Tormentil.
Potentilla sterilis – Barren Strawberry.
Prunella vulgaris – Self-heal.
Sedum acre – Biting Stonecrop.
Senecio jacobaea – Ragwort.
Sesleria caerulea – Blue Moor-grass.
Taraxacum agg. – Dandelion.
Thymus polytrichus – Thyme.
Trifolium repens – White Clover
Urtica dioica – Nettle.
Veronica arvensis – Wall Speedwell.
Veronica officinalis – Heath Speedwell.
Veronica serpyllifolia – Thyme-leaved Speedwell.
Viola riviniana – Common Dog-violet.
2. Oxnop Scar
Lower Scar (The Long Scar)
Acer pseudoplatanus – Sycamore.
Achillea millefolium – Yarrow.
Agrostis capillaris – Common Bent.
Alchemilla glabra – Smooth Lady’s Mantle.
Arabis hirsuta – Hairy Rock-cress.
Arenaria leptoclados – Slender Sandwort.
Arenaria serpyllifolia – Thyme-leaved Sandwort.
Campanula rotundifolia – Harebell.
Carex caryophyllea – Spring Sedge.
Chamerion angustifolium – Rose-bay Willowherb.
Corylus avellana – Hazel.
Cruciata laevipes – Crosswort.
Cynosurus cristatus – Crested Dogs-tail.
Draba incana – Hoary Whitlowgrass.
Epilobium montanum – Broad-leaved Willowherb.
Euphrasia confusa – Eyebright.
Fraxinus excelsior – Ash.
Geranium lucidum – Shining Cranesbill.
Hedera helix – Ivy.
Helianthemum nummularium – Rock-rose.
Heracleum sphondylium – Hogweed.
Hieracium sp. – Hawkweed.
Hornungia petraea – Hutchinsia.
Juniperus communis ssp. nana - Juniper, prostrate form.
Koeleria macrantha – Crested Hair-grass.
Mycelis muralis – Wall Lettuce.
Myosotis arvensis – Field Forget-me-not.
Nardus stricta – Mat-grass.
Pilosella officinarum – Mouse-ear Hawkweed.
Pimpinella saxifraga – Burnet-saxifrage.
Populus tremula - Aspen.
Prunus spinosa – Blackthorn.
Ranunculus acris – Meadow Buttercup.
Ranunculus repens – Creeping Buttercup.
Rumex acetosa – Common Sorrel.
Sambucus nigra – Elder.
Saxifraga hypnoides – Mossy Saxifrage
Scabiosa columbaria – Small Scabious
Sorbus aucuparia – Rowan
Thalictrum minus – Lesser Meadow-rue.
Veronica chamaedrys – Germander Speedwell.
Viola lutea – Mountain Pansy.
|
| Image 1 ID | 1379 Click image to enlarge |
| Image 1 Description | Oxnop Scar. View northward from top of Long Scar |  |
| Image 2 ID | 1388 Click image to enlarge |
| Image 2 Description | Oxnop Scar view southward from below. Aspen clones on face of Scar north of wall. |  |
| Image 3 ID | 1380 Click image to enlarge |
| Image 3 Description | Oxnop Scar with Mrs Jocelyn Campbell. |  |
| Image 4 ID | 1387 Click image to enlarge |
| Image 4 Description | The Long Scar |  |
| Image 5 ID | 1382 Click image to enlarge |
| Image 5 Description | Aspen with juniper at top edge of Scar from above. Danger! Do not attempt this photo unless tired of life. |  |
| Image 6 ID | 1383 Click image to enlarge |
| Image 6 Description | Aspen detail |  |
| Image 7 ID | 1385 Click image to enlarge |
| Image 7 Description | Brittle Bladder Fern on face of cliff. |  |
| Image 8 ID | 1386 Click image to enlarge |
| Image 8 Description | Blackthorn on face of the cliff. |  |
| Image 9 ID | 1398 Click image to enlarge |
| Image 9 Description | Ash at 495m |  |
| Image 10 ID | 1400 Click image to enlarge |
| Image 10 Description | Potentila erecta |  |
| Image 11 ID | 1393 |
| Image 11 Description | Lesser meadow rue. Thalictrum minor. |  |
| Image 12 ID | 1394 |
| Image 12 Description | Blue Moor Grass. Sesleria albicans. |  |
| Image 13 ID | 1395 |
| Image 13 Description | Galium sterneri |  |
| Image 14 ID | 1389 |
| Image 14 Description | Aspen at base of cliff |  |
| Image 15 ID | 1390 |
| Image 15 Description | Aspen at base of cliff |  |
| Image 16 ID | 1391 |
| Image 16 Description | Aspen at base of cliff |  |
| Image 17 ID | 1392 |
| Image 17 Description | Aspen at base of cliff |  |
| Image 18 ID | 3977 |
| Image 18 Description | Oxnop Scar in winter |  |
| Image 19 ID | 3978 |
| Image 19 Description | The Scar and talus slope |  |
| Image 20 ID | 3980 |
| Image 20 Description | Ash which is here at its local altitudinal limit with blackthorn, downy rose, aspen and isolated prostrate juniper at top edge of the cliff. |  |
| Image 21 ID | 3981 |
| Image 21 Description | |  |
| Image 22 ID | 3982 |
| Image 22 Description | |  |
| Image 23 ID | 3983 |
| Image 23 Description | Downy rose and ivy on the Scar |  |
| Image 24 ID | 3984 |
| Image 24 Description | View down Oxnop Gill from the Scar. |  |
